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  • 151.
    Abramowski, A.
    et al.
    Univ Hamburg Inst Expt Phys, D-22761 Hamburg, Germany.
    Aharonian, F.
    Max Planck Inst Kernphys, D-69029 Heidelberg, Germany ; Dublin Inst Adv Studies, Dublin 2, Ireland ; Natl Acad Sci Republ Armenia, Yerevan 0019, Armenia .
    Benkhali, F. Ait
    Max Planck Inst Kernphys, D-69029 Heidelberg, Germany.
    Akhperjanian, A. G.
    Natl Acad Sci Republ Armenia, Yerevan 0019, Armenia ; Yerevan Phys Inst, Yerevan 375036, Armenia.
    Anguener, E. O.
    Humboldt Univ, Inst Phys, D-12489 Berlin, Germany.
    Backes, M.
    Univ Namibia, Dept Phys, Windhoek, Namibia.
    Balenderan, S.
    Univ Durham, Dept Phys, Durham DH1 3LE, England.
    Balzer, A.
    Univ Amsterdam, Astron Inst Anton Pannekoek, Gravitat Astroparticle Phys Amsterdam GRAPPA, NL-1098 XH Amsterdam, Netherlands.
    Barnacka, A.
    Uniwersytet Jagiellonski, Obserwatorium Astronomiczne, PL-30244 Krakow, Poland ; Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA .
    Becherini, Yvonne
    Linnaeus University, Faculty of Technology, Department of Physics and Electrical Engineering.
    Becker-Tjus, J.
    Berge, D.
    Bernhard, S.
    Bernloehr, K.
    Birsin, E.
    Biteau, J.
    Boettcher, M.
    Boisson, C.
    Bolmont, J.
    Bordas, P.
    Bregeon, J.
    Brun, F.
    Brun, P.
    Bryan, M.
    Bulik, T.
    Carrigan, S.
    Casanova, S.
    Chadwick, P. M.
    Chakraborty, N.
    Chalme-Calvet, R.
    Chaves, R. C. G.
    Chretien, M.
    Colafrancesco, S.
    Cologna, G.
    Conrad, J.
    Couturier, C.
    Cui, Y.
    Dalton, M.
    Davids, I. D.
    Degrange, B.
    Deil, C.
    de Wilt, P.
    Djannati-Atai, A.
    Domainko, W.
    Donath, A.
    Drury, L. O 'C.
    Dubus, G.
    Dutson, K.
    Dyks, J.
    Dyrda, M.
    Edwards, T.
    Egberts, K.
    Eger, P.
    Espigat, P.
    Farnier, C.
    Fegan, S.
    Feinstein, F.
    Fernandes, M. V.
    Fernandez, D.
    Fiasson, A.
    Fontaine, G.
    Foerster, A.
    Fuessling, M.
    Gabici, S.
    Gajdus, M.
    Gallant, Y. A.
    Garrigoux, T.
    Giavitto, G.
    Giebels, B.
    Glicenstein, J. F.
    Gottschall, D.
    Grondin, M-H
    Grudzinska, M.
    Hadasch, D.
    Haeffner, S.
    Hahn, J.
    Harris, J.
    Heinzelmann, G.
    Henri, G.
    Hermann, G.
    Hervet, O.
    Hillert, A.
    Hinton, J. A.
    Hofmann, W.
    Hofverberg, P.
    Holler, M.
    Horns, D.
    Ivascenko, A.
    Jacholkowska, A.
    Jahn, C.
    Jamrozy, M.
    Janiak, M.
    Jankowsky, F.
    Jung, I.
    Kastendieck, M. A.
    Katarzynski, K.
    Katz, U.
    Kaufmann, S.
    Khelifi, B.
    Kieffer, M.
    Klepser, S.
    Klochkov, D.
    Kluzniak, W.
    Kolitzus, D.
    Komin, Nu.
    Kosack, K.
    Krakau, S.
    Krayzel, F.
    Krueger, P. P.
    Laffon, H.
    Lamanna, G.
    Lefaucheur, J.
    Lefranc, V.
    Lemiere, A.
    Lemoine-Goumard, M.
    Lenain, J-P
    Lohse, T.
    Lopatin, A.
    Lu, C-C
    Marandon, V.
    Marcowith, A.
    Marx, R.
    Maurin, G.
    Maxted, N.
    Mayer, M.
    McComb, T. J. L.
    Mehault, J.
    Meintjes, P. J.
    Menzler, U.
    Meyer, M.
    Mitchell, A. M. W.
    Moderski, R.
    Mohamed, M.
    Mora, K.
    Moulin, E.
    Murach, T.
    de Naurois, M.
    Niemiec, J.
    Nolan, S. J.
    Oakes, L.
    Odaka, H.
    Ohm, S.
    Opitz, B.
    Ostrowski, M.
    Oya, I.
    Panter, M.
    Parsons, R. D.
    Arribas, M. Paz
    Pekeur, N. W.
    Pelletier, G.
    Perez, J.
    Petrucci, P-O
    Peyaud, B.
    Pita, S.
    Poon, H.
    Puehlhofer, G.
    Punch, Michael
    Univ Paris Diderot, APC, AstroParticule & Cosmology, CNRS,IN2P3,CEA,Irfu, Observ Paris,Sorbonne Paris C, 10 Rue Alice Domon & Leonie Duquet, F-75205 Paris 13, France.
    Quirrenbach, A.
    Raab, S.
    Reichardt, I.
    Reimer, A.
    Reimer, O.
    Renaud, M.
    de los Reyes, R.
    Rieger, F.
    Rob, L.
    Romoli, C.
    Rosier-Lees, S.
    Rowell, G.
    Rudak, B.
    Rulten, C. B.
    Sahakian, V.
    Salek, D.
    Sanchez, D. A.
    Santangelo, A.
    Schlickeiser, R.
    Schuessler, F.
    Schulz, A.
    Schwanke, U.
    Schwarzburg, S.
    Schwemmer, S.
    Sol, H.
    Spanier, F.
    Spengler, G.
    Spies, F.
    Stawarz, L.
    Steenkamp, R.
    Stegmann, C.
    Stinzing, F.
    Stycz, K.
    Sushch, I.
    Tavernet, J-P
    Tavernier, T.
    Taylor, A. M.
    Terrier, R.
    Tluczykont, M.
    Trichard, C.
    Valerius, K.
    van Eldik, C.
    van Soelen, B.
    Vasileiadis, G.
    Veh, J.
    Venter, C.
    Viana, A.
    Vincent, P.
    Vink, J.
    Voelk, H. J.
    Volpe, F.
    Vorster, M.
    Vuillaume, T.
    Wagner, S. J.
    Wagner, P.
    Wagner, R. M.
    Ward, M.
    Weidinger, M.
    Weitzel, Q.
    White, R.
    Wierzcholska, A.
    Willmann, P.
    Woernlein, A.
    Wouters, D.
    Yang, R.
    Zabalza, V.
    Zaborov, D.
    Zacharias, M.
    Zdziarski, A. A.
    Zech, A.
    Zechlin, H-S
    The exceptionally powerful TeV gamma-ray emitters in the Large Magellanic Cloud2015In: Science, ISSN 0036-8075, E-ISSN 1095-9203, Vol. 347, no 6220, p. 406-412Article in journal (Refereed)
    Abstract [en]

    The Large Magellanic Cloud, a satellite galaxy of the Milky Way, has been observed with the High Energy Stereoscopic System (H.E.S.S.) above an energy of 100 billion electron volts for a deep exposure of 210 hours. Three sources of different types were detected: the pulsar wind nebula of the most energetic pulsar known, N 157B; the radio-loud supernova remnant N 132D; and the largest nonthermal x-ray shell, the superbubble 30 Dor C. The unique object SN 1987A is, unexpectedly, not detected, which constrains the theoretical framework of particle acceleration in very young supernova remnants. These detections reveal the most energetic tip of a g-ray source population in an external galaxy and provide via 30 Dor C the unambiguous detection of g-ray emission from a superbubble.

  • 152.
    Abramowski, A.
    et al.
    Univ Hamburg, Germany.
    Aharonian, F.
    Max Planck Inst Kernphys,Germany ; Dublin Inst Adv Studies, Ireland ; Natl Acad Sci Republ Armenia, Armenia.
    Benkhali, F. Ait
    Max Planck Inst Kernphys,Germany.
    Akhperjanian, A. G.
    Natl Acad Sci Republ Armenia, Armenia ; Yerevan Phys Inst, Armenia.
    Anguener, E. O.
    Humboldt Univ, Germany.
    Backes, M.
    Univ Namibia, Namibia.
    Balenderan, S.
    Univ Durham, UK.
    Balzer, A.
    Univ Amsterdam, Netherlands.
    Barnacka, A.
    Uniwersytet Jagiellonski, Poland.
    Becherini, Yvonne
    Linnaeus University, Faculty of Technology, Department of Physics and Electrical Engineering.
    Tjus, J. Becker
    Berge, D.
    Bernhard, S.
    Bernloehr, K.
    Birsin, E.
    Biteau, J.
    Boettcher, M.
    Boisson, C.
    Bolmont, J.
    Bordas, P.
    Bregeon, J.
    Brun, F.
    Brun, P.
    Bryan, M.
    Bulik, T.
    Carrigan, S.
    Casanova, S.
    Chadwick, P. M.
    Chakraborty, N.
    Chalme-Calvet, R.
    Chaves, R. C. G.
    Chretien, M.
    Colafrancesco, S.
    Cologna, G.
    Conrad, J.
    Couturier, C.
    Cui, Y.
    Dalton, M.
    Davids, I. D.
    Degrange, B.
    Deil, C.
    deWilt, P.
    Djannati-Atai, A.
    Domainko, W.
    Donath, A.
    Drury, L. O 'C.
    Dubus, G.
    Dutson, K.
    Dyks, J.
    Dyrda, M.
    Edwards, T.
    Egberts, K.
    Eger, P.
    Espigat, P.
    Farnier, C.
    Fegan, S.
    Feinstein, F.
    Fernandes, M. V.
    Fernandez, D.
    Fiaon, A.
    Fontaine, G.
    Foerster, A.
    Fuessling, M.
    Gabici, S.
    Gajdus, M.
    Gallant, Y. A.
    Garrigoux, T.
    Giavitto, G.
    Giebels, B.
    Glicenstein, J. F.
    Gottschall, D.
    Grondin, M. -H
    Grudzinska, M.
    Hadsch, D.
    Haeffner, S.
    Hahn, J.
    Harris, J.
    Heinzelmann, G.
    Henri, G.
    Hermann, G.
    Hervet, O.
    Hillert, A.
    Hinton, J. A.
    Hofmann, W.
    Hofverberg, P.
    Holler, M.
    Horns, D.
    Ivascenko, A.
    Jacholkowska, A.
    Jahn, C.
    Jamrozy, M.
    Janiak, M.
    Jankowsky, F.
    Jung, I.
    Kastendieck, M. A.
    Katarzynski, K.
    Katz, U.
    Kaufmann, S.
    Khelifi, B.
    Kieffer, M.
    Klepser, S.
    Klochkov, D.
    Kluzniak, W.
    Kolitzus, D.
    Komin, Nu.
    Kosack, K.
    Krakau, S.
    Krayzel, F.
    Krueger, P. P.
    Laffon, H.
    Lamanna, G.
    Lefaucheur, J.
    Lefranc, V.
    Lemiere, A.
    Lemoine-Goumard, M.
    Lenain, J. -P
    Lohse, T.
    Lopatin, A.
    Lu, C-C
    Marandon, V.
    Marcowith, A.
    Marx, R.
    Maurin, G.
    Maxted, N.
    Mayer, M.
    McComb, T. J. L.
    Mehault, J.
    Meintjes, P. J.
    Menzler, U.
    Meyer, M.
    Mitchell, A. M. W.
    Moderski, R.
    Mohamed, M.
    Mora, K.
    Moulin, E.
    Murach, T.
    de Naurois, M.
    Niemiec, J.
    Nolan, S. J.
    Oakes, L.
    Odaka, H.
    Ohm, S.
    Opitz, B.
    Ostrowski, M.
    Oya, I.
    Panter, M.
    Parsons, R. D.
    Arribas, M. Paz
    Pekeur, N. W.
    Pelletier, G.
    Perez, J.
    Petrucci, P. -O
    Peyaud, B.
    Pita, S.
    Poon, H.
    Puehlhofer, G.
    Punch, Michael
    Univ Paris Diderot, APC, AstroParticule & Cosmology, CNRS,IN2P3,CEA,Irfu, Observ Paris,Sorbonne Paris C, 10 Rue Alice Domon & Leonie Duquet, F-75205 Paris 13, France.
    Quirrenbach, A.
    Raab, S.
    Reichardt, I.
    Reimer, A.
    Reimer, O.
    Renaud, M.
    Reyes, R. de Los
    Rieger, F.
    Rob, L.
    Romoli, C.
    Rosier-Lees, S.
    Rowell, G.
    Rudak, B.
    Rulten, C. B.
    Sahakian, V.
    Salek, D.
    Sanchez, D. A.
    Santangelo, A.
    Schlickeiser, R.
    Schuessler, F.
    Schulz, A.
    Schwanke, U.
    Schwarzburg, S.
    Schwemmer, S.
    Sol, H.
    Spanier, F.
    Spengler, G.
    Spies, F.
    Stawarz, L.
    Steenkamp, R.
    Stegmann, C.
    Stinzing, F.
    Stycz, K.
    Sushch, I.
    Tavernet, J. -P
    Tavernier, T.
    Taylor, A. M.
    Terrier, R.
    Tluczykont, M.
    Trichard, C.
    Valerius, K.
    van Eldik, C.
    van Soelen, B.
    Vasileiadis, G.
    Veh, J.
    Venter, C.
    Viana, A.
    Vincent, P.
    Vink, J.
    Voelk, H. J.
    Volpe, F.
    Vorster, M.
    Vuillaume, T.
    Wagner, P.
    Wagner, R. M.
    Ward, M.
    Weidinger, M.
    Weitzel, Q.
    White, R.
    Wierzcholska, A.
    Willmann, P.
    Woernlein, A.
    Wouters, D.
    Yang, R.
    Zabalza, V.
    Zaborov, D.
    Zacharias, M.
    Zdziarski, A. A.
    Zech, A.
    Zechlin, H. -S
    THE 2012 FLARE OF PG 1553+113 SEEN WITH HESS AND FERMI-LAT2015In: Astrophysical Journal, ISSN 0004-637X, E-ISSN 1538-4357, Vol. 802, no 1, article id 65Article in journal (Refereed)
    Abstract [en]

    Very high energy (VHE, E > 100 GeV)gamma-ray flaring activity of the high-frequency peaked BL Lac object PG 1553 + 113 has been detected by the H.E.S.S. telescopes. The flux of the source increased by a factor of 3 during the nights of 2012 April 26 and 27 with respect to the archival measurements with a hint of intra-night variability. No counterpart of this event has been detected in the Fermi-Large Area Telescope data. This pattern is consistent with VHE gamma(-)ray flaring being caused by the injection of ultrarelativistic particles, emitting.-rays at the highest energies. The dataset offers a unique opportunity to constrain the redshift of this source at z = 0.49 +/- 0.04 using a novel method based on Bayesian statistics. The indication of intra-night variability is used to introduce a novel method to probe for a possible Lorentz invariance violation (LIV), and to set limits on the energy scale at which Quantum Gravity (QG) effects causing LIV may arise. For the subluminal case, the derived limits are E-QG,E- 1 > 4.10 x 10(17) GeV and E-QG,E- 2 > 2.10 x 10(10) GeV for linear and quadratic LIV effects, respectively.

  • 153.
    Abramowski, A.
    et al.
    Universität Hamburg, Germany.
    Aharonian, F.
    Max-Planck-Institut für Kernphysik, Germany ; Dublin Institute for Advanced Studies, Ireland ; National Academy of Sciences of the Republic of Armenia, Armenia.
    Benkhali, F. Ait
    Max-Planck-Institut für Kernphysik, Germany.
    Akhperjanian, A. G.
    Yerevan Physics Institute, Armenia ; National Academy of Sciences of the Republic of Armenia, Armenia.
    Anguener, E. O.
    Humboldt-Universität zu Berlin, Germany.
    Backes, M.
    University of Namibia, Namibia.
    Balenderan, S.
    University of Durham, UK.
    Balzer, A.
    University of Amsterdam, The Netherlands.
    Barnacka, A.
    Uniwersytet Jagielloński, Poland.
    Becherini, Yvonne
    Linnaeus University, Faculty of Technology, Department of Physics and Electrical Engineering.
    Tjus, J. Becker
    Berge, D.
    Bernhard, S.
    Bernloehr, K.
    Birsin, E.
    Biteau, J.
    Boettcher, M.
    Boisson, C.
    Bolmont, J.
    Bordas, P.
    Bregeon, J.
    Brun, F.
    Brun, P.
    Bryan, M.
    Bulik, T.
    Carrigan, S.
    Casanova, S.
    Chadwick, P. M.
    Chakraborty, N.
    Chalme-Calvet, R.
    Chaves, R. C. G.
    Chretien, M.
    Colafrancesco, S.
    Cologna, G.
    Conrad, J.
    Couturier, C.
    Cui, Y.
    Davids, I. D.
    Degrange, B.
    Deil, C.
    deWilt, P.
    Djannati-Atai, A.
    Domainko, W.
    Donath, A.
    Drury, L. O 'C.
    Dubus, G.
    Dutson, K.
    Dyks, J.
    Dyrda, M.
    Edwards, T.
    Egberts, K.
    Eger, P.
    Espigat, P.
    Farnier, C.
    Fegan, S.
    Feinstein, F.
    Fernandes, M. V.
    Fernandez, D.
    Fiasson, A.
    Fontaine, G.
    Foerster, A.
    Fuessling, M.
    Gabici, S.
    Gajdus, M.
    Gallant, Y. A.
    Garrigoux, T.
    Giavitto, G.
    Giebels, B.
    Glicenstein, J. F.
    Gottschall, D.
    Grondin, M. -H
    Grudzinska, M.
    Hadasch, D.
    Haeffner, S.
    Hahn, J.
    Harris, J.
    Heinzelmann, G.
    Henri, G.
    Hermann, G.
    Hervet, O.
    Hillert, A.
    Hinton, J. A.
    Hofmann, W.
    Hofverberg, P.
    Holler, M.
    Horns, D.
    Ivascenko, A.
    Jacholkowska, A.
    Jahn, C.
    Jamrozy, M.
    Janiak, M.
    Jankowsky, F.
    Jung-Richardt, I.
    Kastendieck, M. A.
    Katarzynski, K.
    Katz, U.
    Kaufmann, S.
    Khelifi, B.
    Kieffer, M.
    Klepser, S.
    Klochkov, D.
    Kluzniak, W.
    Kolitzus, D.
    Komin, Nu.
    Kosack, K.
    Krakau, S.
    Krayzel, F.
    Krueger, P. P.
    Laffon, H.
    Lamanna, G.
    Lefaucheur, J.
    Lefranc, V.
    Lemiere, A.
    Lemoine-Goumard, M.
    Lenain, J. -P
    Lohse, T.
    Lopatin, A.
    Lu, C. -C
    Marandon, V.
    Marcowith, A.
    Marx, R.
    Maurin, G.
    Maxted, N.
    Mayer, M.
    McComb, T. J. L.
    Mehault, J.
    Meintjes, P. J.
    Menzler, U.
    Meyer, M.
    Mitchell, A. M. W.
    Moderski, R.
    Mohamed, M.
    Mora, K.
    Moulin, E.
    Murach, T.
    de Naurois, M.
    Niemiec, J.
    Nolan, S. J.
    Oakes, L.
    Odaka, H.
    Ohm, S.
    Opitz, B.
    Ostrowski, M.
    Oya, I.
    Panter, M.
    Parsons, R. D.
    Arribas, M. Paz
    Pekeur, N. W.
    Pelletier, G.
    Petrucci, P. -O
    Peyaud, B.
    Pita, S.
    Poon, H.
    Puehlhofer, G.
    Punch, Michael
    Quirrenbach, A.
    Raab, S.
    Reichardt, I.
    Reimer, A.
    Reimer, O.
    Renaud, M.
    de los Reyes, R.
    Rieger, F.
    Romoli, C.
    Rosier-Lees, S.
    Rowell, G.
    Rudak, B.
    Rulten, C. B.
    Sahakian, V.
    Salek, D.
    Sanchez, D. A.
    Santangelo, A.
    Schlickeiser, R.
    Schuessler, F.
    Schulz, A.
    Schwanke, U.
    Schwarzburg, S.
    Schwemmer, S.
    Sol, H.
    Spanier, F.
    Spengler, G.
    Spies, F.
    Stawarz, L.
    Steenkamp, R.
    Stegmann, C.
    Stinzing, F.
    Stycz, K.
    Sushch, I.
    Tavernet, J. -P
    Tavernier, T.
    Taylor, A. M.
    Terrier, R.
    Tluczykont, M.
    Trichard, C.
    Valerius, K.
    van Eldik, C.
    van Soelen, B.
    Vasileiadis, G.
    Veh, J.
    Venter, C.
    Viana, A.
    Vincent, P.
    Vink, J.
    Voelk, H. J.
    Volpe, F.
    Vorster, M.
    Vuillaume, T.
    Wagner, S. J.
    Wagner, P.
    Wagner, R. M.
    Ward, M.
    Weidinger, M.
    Weitzel, Q.
    White, R.
    Wierzcholska, A.
    Willmann, P.
    Woernlein, A.
    Wouters, D.
    Yang, R.
    Zabalza, V.
    Zaborov, D.
    Zacharias, M.
    Zdziarski, A. A.
    Zech, A.
    Zechlin, H. -S
    H.E.S.S. reveals a lack of TeV emission from the supernova remnant Puppis A: (Research Note)2015In: Astronomy and Astrophysics, ISSN 0004-6361, E-ISSN 1432-0746, Vol. 575, article id A81Article in journal (Refereed)
    Abstract [en]

    Context. Puppis A is an interesting similar to 4 kyr-old supernova remnant (SNR) that shows strong evidence of interaction between the forward shock and a molecular cloud. It has been studied in detail from radio frequencies to high-energy (HE, 0.1-100 GeV) gamma-rays. An analysis of the Fermi-LAT data has shown extended HE gamma-ray emission with a 0.2-100 GeV spectrum exhibiting no significant deviation from a power law, unlike most of the GeV-emitting SNRs known to be interacting with molecular clouds. This makes it a promising target for imaging atmospheric Cherenkov telescopes (IACTs) to probe the gamma-ray emission above 100 GeV.

    Aims. Very-high-energy (VHE, E >= 0.1 TeV) gamma-ray emission from Puppis A has been, for the first time, searched for with the High Energy Stereoscopic System (HESS.).

    Methods. Stereoscopic imaging of Cherenkov radiation from extensive air showers is used to reconstruct the direction and energy of the incident gamma-rays in order to produce sky images and source spectra. The profile likelihood method is applied to find constraints on the existence of a potential break or cutoff in the photon spectrum.

    Results. The analysis of the HESS. data does not reveal any significant emission towards Puppis A. The derived upper limits on the differential photon flux imply that its broadband gamma-ray spectrum must exhibit a spectral break or cutoff. By combining Fermi-LAT and HESS. measurements, the 99% confidence-level upper limits on such a cutoff are found to be 450 and 280 GeV, assuming a power law with a simple exponential and a sub-exponential cutoff, respectively. It is concluded that none of the standard limitations (age, size, radiative losses) on the particle acceleration mechanism, assumed to be continuing at present, can explain the lack of VHE signal. The scenario in which particle acceleration has ceased some time ago is considered as an alternative explanation. The HE/VHE spectrum of Puppis A could then exhibit a break of non-radiative origin (as observed in several other interacting SNRs, albeit at somewhat higher energies), owing to the interaction with dense and neutral material, in particular towards the NE region.

  • 154.
    Abramowski, A.
    et al.
    Univ Hamburg, Inst Expt Phys, D-22761 Hamburg, Germany.
    Aharonian, F.
    Max Planck Inst Kernphys, D-69029 Heidelberg, Germany.
    Benkhali, F. Ait
    Max Planck Inst Kernphys, D-69029 Heidelberg, Germany.
    Akhperjanian, A. G.
    Natl Acad Sci Republ Armenia, Yerevan 0019, Armenia.
    Anguener, E. O.
    Humboldt Univ, Inst Phys, D-12489 Berlin, Germany.
    Backes, M.
    Univ Namibia, Dept Phys, Windhoek, Namibia.
    Balenderan, S.
    Univ Durham, Dept Phys, Durham DH1 3LE, England.
    Balzer, A.
    Univ Amsterdam, Astron Inst Anton Pannekoek, GRAPPA, NL-1098 XH Amsterdam, Netherlands.
    Barnacka, A.
    Uniwersytet Jagiellonski, Obserwatorium Astron, PL-30244 Krakow, Poland.
    Becherini, Yvonne
    Linnaeus University, Faculty of Technology, Department of Physics and Electrical Engineering.
    Tjus, J. Becker
    Berge, D.
    Bernhard, S.
    Bernloehr, K.
    Birsin, E.
    Biteau, J.
    Boettcher, M.
    Boisson, C.
    Bolmont, J.
    Bordas, P.
    Bregeon, J.
    Brun, F.
    Brun, P.
    Bryan, M.
    Bulik, T.
    Carrigan, S.
    Casanova, S.
    Chadwick, P. M.
    Chakraborty, N.
    Chalme-Calvet, R.
    Chaves, R. C. G.
    Chretien, M.
    Colafrancesco, S.
    Cologna, G.
    Conrad, J.
    Couturier, C.
    Cui, Y.
    Davids, I. D.
    Degrange, B.
    Deil, C.
    dewilt, P.
    Djannati-Atai, A.
    Domainko, W.
    Donath, A.
    Drury, L. O 'C.
    Dubus, G.
    Dutson, K.
    Dyks, J.
    Dyrda, M.
    Edwards, T.
    Egberts, K.
    Eger, P.
    Espigat, P.
    Farnier, C.
    Fegan, S.
    Feinstein, F.
    Fernandes, M. V.
    Fernandez, D.
    Fiasson, A.
    Fontaine, G.
    Foerster, A.
    Fuessling, M.
    Gabici, S.
    Gajdus, M.
    Gallant, Y. A.
    Garrigoux, T.
    Giavitto, G.
    Giebels, B.
    Glicenstein, J. F.
    Gottschall, D.
    Grondin, M. -H
    Grudzinska, M.
    Hadasch, D.
    Haeffner, S.
    Hahn, J.
    Harris, J.
    Heinzelmann, G.
    Henri, G.
    Hermann, G.
    Hervet, O.
    Hillert, A.
    Hinton, J. A.
    Hofmann, W.
    Hofverberg, P.
    Holler, M.
    Horns, D.
    Ivascenko, A.
    Jacholkowska, A.
    Jahn, C.
    Jamrozy, M.
    Janiak, M.
    Jankowsky, F.
    Jung-Richardt, I.
    Kastendieck, M. A.
    Katarzynski, K.
    Katz, U.
    Kaufmann, S.
    Khelifi, B.
    Kieffer, M.
    Klepser, S.
    Klochkov, D.
    Kluzniak, W.
    Kolitzus, D.
    Komin, Nu.
    Kosack, K.
    Krakau, S.
    Krayzel, F.
    Krueger, P. P.
    Laffon, H.
    Lamanna, G.
    Lefaucheur, J.
    Lefranc, V.
    Lemiere, A.
    Lemoine-Goumard, M.
    Lenain, J. -P
    Lohse, T.
    Lopatin, A.
    Lu, C. -C
    Marandon, V.
    Marcowith, A.
    Marx, R.
    Maurin, G.
    Maxted, N.
    Mayer, M.
    McComb, T. J. L.
    Mehault, J.
    Meintjes, P. J.
    Menzler, U.
    Meyer, M.
    Mitchell, A. M. W.
    Moderski, R.
    Mohamed, M.
    Mora, K.
    Moulin, E.
    Murach, T.
    de Naurois, M.
    Niemiec, J.
    Nolan, S. J.
    Oakes, L.
    Odaka, H.
    Ohm, S.
    Opitz, B.
    Ostrowski, M.
    Oya, I.
    Panter, M.
    Parsons, R. D.
    Arribas, M. Paz
    Pekeur, N. W.
    Pelletier, G.
    Petrucci, P. -O
    Peyaud, B.
    Pita, S.
    Poon, H.
    Puehlhofer, G.
    Punch, Michael
    Quirrenbach, A.
    Raab, S.
    Univ Paris Diderot, APC, AstroParticule & Cosmology, CNRS,IN2P3,CEA,Irfu, Observ Paris,Sorbonne Paris C, 10 Rue Alice Domon & Leonie Duquet, F-75205 Paris 13, France.
    Reichardt, I.
    Reimer, A.
    Reimer, O.
    Renaud, M.
    de los Reyes, R.
    Rieger, F.
    Romoli, C.
    Rosier-Lees, S.
    Rowell, G.
    Rudak, B.
    Rulten, C. B.
    Sahakian, V.
    Salek, D.
    Sanchez, D. A.
    Santangelo, A.
    Schlickeiser, R.
    Schuessler, F.
    Schulz, A.
    Schwanke, U.
    Schwarzburg, S.
    Schwemmer, S.
    Sol, H.
    Spanier, F.
    Spengler, G.
    Spies, F.
    Stawarz, L.
    Steenkamp, R.
    Stegmann, C.
    Stinzing, F.
    Stycz, K.
    Sushch, I.
    Tavernet, J. -P
    Tavernier, T.
    Taylor, A. M.
    Terrier, R.
    Tluczykont, M.
    Trichard, C.
    Valerius, K.
    van Eldik, C.
    van Soelen, B.
    Vasileiadis, G.
    Veh, J.
    Venter, C.
    Viana, A.
    Vincent, P.
    Vink, J.
    Voelk, H. J.
    Volpe, F.
    Vorster, M.
    Vuillaume, T.
    Wagner, S. J.
    Wagner, P.
    Wagner, R. M.
    Ward, M.
    Weidinger, M.
    Weitzel, Q.
    White, R.
    Wierzcholska, A.
    Willmann, P.
    Woernlein, A.
    Wouters, D.
    Yang, R.
    Zabalza, V.
    Zaborov, D.
    Zacharias, M.
    Zdziarski, A. A.
    Zech, A.
    Zechlin, H. -S
    Fukui, Y.
    Diffuse Galactic gamma-ray emission with HESS2014In: Physical Review D, ISSN 1550-7998, E-ISSN 1550-2368, Vol. 90, no 12, p. Article ID: 122007-Article in journal (Refereed)
    Abstract [en]

    Diffuse gamma-ray emission is the most prominent observable signature of celestial cosmic-ray interactions at high energies. While already being investigated at GeVenergies over several decades, assessments of diffuse gamma-ray emission at TeVenergies remain sparse. After completion of the systematic survey of the inner Galaxy, the H.E.S.S. experiment is in a prime position to observe large-scale diffuse emission at TeVenergies. Data of the H.E.S.S. Galactic Plane Survey are investigated in regions off known gamma-ray sources. Corresponding gamma-ray flux measurements were made over an extensive grid of celestial locations. Longitudinal and latitudinal profiles of the observed gamma-ray fluxes show characteristic excess emission not attributable to known gamma-ray sources. For the first time large-scale gamma-ray emission along the Galactic plane using imaging atmospheric Cherenkov telescopes has been observed. While the background subtraction technique limits the ability to recover modest variation on the scale of the H.E.S.S. field of view or larger, which is characteristic of the inverse Compton scatter-induced Galactic diffuse emission, contributions of neutral pion decay as well as emission from unresolved gamma-ray sources can be recovered in the observed signal to a large fraction. Calculations show that the minimum gamma-ray emission from pi(0) decay represents a significant contribution to the total signal. This detection is interpreted as a mix of diffuse Galactic gamma-ray emission and unresolved sources.

  • 155.
    Abramowski, A.
    et al.
    University of Hamburg, Germany.
    Aharonian, F.
    Max Planck Institute for Nuclear Physics, Germany ; Dublin Institute for Advanced Studies, Ireland ; National Academy of Sciences of the Republic of Armenia, Armenia.
    Benkhali, F. Ait
    Max Planck Institute for Nuclear Physics, Germany.
    Akhperjanian, A. G.
    National Academy of Sciences of the Republic of Armenia, Armenia ; Yerevan Physics Institute, Armenia.
    Anguener, E. O.
    Humboldt University of Berlin, Germany.
    Backes, M.
    University of Namibia, Namibia.
    Balzer, A.
    University of Amsterdam, The Netherlands.
    Becherini, Yvonne
    Linnaeus University, Faculty of Technology, Department of Physics and Electrical Engineering.
    Tjus, J. Becker
    Ruhr University Bochum, Germany.
    Berge, D.
    University of Amsterdam, The Netherlands.
    Bernhard, S.
    Leopold Franzens Univ Innsbruck, Inst Astro Teilchenphys, A-6020 Innsbruck, Austria..
    Bernloehr, K.
    Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany..
    Birsin, E.
    Humboldt Univ, Inst Phys, Newtonstr 15, D-12489 Berlin, Germany..
    Blackwell, R.
    Univ Adelaide, Sch Chem & Phys, Adelaide, SA 5005, Australia..
    Boettcher, M.
    North West Univ, Ctr Space Res, ZA-2520 Potchefstroom, South Africa..
    Boisson, C.
    Univ Paris Diderot, LUTH, Observ Paris, CNRS, 5 Pl Jules Janssen, F-92190 Meudon, France..
    Bolmont, J.
    Univ Paris 07, LPNHE, Univ Paris 06, CNRS,IN2P3, 4 Pl Jussieu, F-75252 Paris 5, France..
    Bordas, P.
    Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany..
    Bregeon, J.
    Univ Montpellier 2, Lab Universe & Particules Montpellier, CNRS, IN2P3, CC 72,Pl Eugene Bataillon, F-34095 Montpellier 5, France..
    Brun, F.
    CEA Saclay, DSM, Irfu, F-91191 Gif Sur Yvette, France..
    Brun, P.
    CEA Saclay, DSM, Irfu, F-91191 Gif Sur Yvette, France..
    Bryan, M.
    Univ Amsterdam, Astron Inst Anton Pannekoek, GRAPPA, Sci Pk 904, NL-1098 XH Amsterdam, Netherlands..
    Bulik, T.
    Univ Warsaw, Astron Observ, Al Ujazdowskie 4, PL-00478 Warsaw, Poland..
    Carr, J.
    Aix Marseille Univ, CNRS, IN2P3, CPPM,UMR 7346, F-13288 Marseille, France..
    Casanova, S.
    Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany.;Inst Fizyki Jadrowej PAN, Ul Radzikowskiego 152, PL-31342 Krakow, Poland..
    Chakraborty, N.
    Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany..
    Chalme-Calvet, R.
    Univ Paris 07, LPNHE, Univ Paris 06, CNRS,IN2P3, 4 Pl Jussieu, F-75252 Paris 5, France..
    Chaves, R. C. G.
    Univ Montpellier 2, Lab Universe & Particules Montpellier, CNRS, IN2P3, CC 72,Pl Eugene Bataillon, F-34095 Montpellier 5, France..
    Chen, A.
    Univ Witwatersrand, Sch Phys, 1 Jan Smuts Ave, ZA-2050 Johannesburg, South Africa..
    Chretien, M.
    Univ Paris 07, LPNHE, Univ Paris 06, CNRS,IN2P3, 4 Pl Jussieu, F-75252 Paris 5, France..
    Colafrancesco, S.
    Univ Witwatersrand, Sch Phys, 1 Jan Smuts Ave, ZA-2050 Johannesburg, South Africa..
    Cologna, G.
    Heidelberg Univ, Landessternwarte, D-69117 Heidelberg, Germany..
    Conrad, J.
    Stockholm Univ, Albanova Univ Ctr, Dept Phys, Oskar Klein Ctr, SE-10691 Stockholm, Sweden..
    Couturier, C.
    Univ Paris 07, LPNHE, Univ Paris 06, CNRS,IN2P3, 4 Pl Jussieu, F-75252 Paris 5, France..
    Cui, Y.
    Univ Tubingen, Inst Astron & Astrophys, Sand 1, D-72076 Tubingen, Germany..
    Davids, I. D.
    Univ Namibia, Dept Phys, Private Bag 13301, Windhoek, Namibia.;North West Univ, Ctr Space Res, ZA-2520 Potchefstroom, South Africa..
    Degrange, B.
    Ecole Polytech, CNRS, IN2P3, Lab Leprince Ringuet, F-91128 Palaiseau, France..
    Deil, C.
    Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany..
    deWilt, P.
    Univ Adelaide, Sch Chem & Phys, Adelaide, SA 5005, Australia..
    Djannati-Ata, A.
    Univ Paris Diderot, APC, AstroParticule & Cosmol, CNRS,IN2P3,CEA,Irfu,Observ Paris,Sorbonne Paris C, 10 Rue Alice Domon & Leonie Duquet, F-75205 Paris 13, France..
    Domainko, W.
    Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany..
    Donath, A.
    Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany..
    Drury, L. O 'C.
    Dubus, G.
    Univ Grenoble Alpes, IPAG, F-38000 Grenoble, France.;CNRS, IPAG, F-38000 Grenoble, France..
    Dutson, K.
    Univ Leicester, Dept Phys & Astron, Univ Rd, Leicester LE1 7RH, Leics, UK.
    Dyks, J.
    Nicolaus Copernicus Astron Ctr, Ul Bartycka 18, PL-00716 Warsaw, Poland..
    Dyrda, M.
    Inst Fizyki Jadrowej PAN, Ul Radzikowskiego 152, PL-31342 Krakow, Poland..
    Edwards, T.
    Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany..
    Egberts, K.
    Univ Potsdam, Inst Phys & Astron, Karl Liebknecht Str 24-25, D-14476 Golm, Germany..
    Eger, P.
    Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany..
    Ernenwein, J-P
    Espigat, P.
    Univ Paris Diderot, APC, AstroParticule & Cosmol, CNRS,IN2P3,CEA,Irfu,Observ Paris,Sorbonne Paris C, 10 Rue Alice Domon & Leonie Duquet, F-75205 Paris 13, France..
    Farnier, C.
    Stockholm Univ, Albanova Univ Ctr, Dept Phys, Oskar Klein Ctr, SE-10691 Stockholm, Sweden..
    Fegan, S.
    Ecole Polytech, CNRS, IN2P3, Lab Leprince Ringuet, F-91128 Palaiseau, France..
    Feinstein, F.
    Univ Montpellier 2, Lab Universe & Particules Montpellier, CNRS, IN2P3, CC 72,Pl Eugene Bataillon, F-34095 Montpellier 5, France..
    Fernandes, M. V.
    Univ Hamburg, Inst Expt Phys, Luruper Chaussee 149, D-22761 Hamburg, Germany..
    Fernandez, D.
    Univ Montpellier 2, Lab Universe & Particules Montpellier, CNRS, IN2P3, CC 72,Pl Eugene Bataillon, F-34095 Montpellier 5, France..
    Fiasson, A.
    Univ Savoie Mt Blanc, Lab Annecy le Vieux Phys Particules, CNRS, IN2P3, F-74941 Annecy Le Vieux, France..
    Fontaine, G.
    Ecole Polytech, CNRS, IN2P3, Lab Leprince Ringuet, F-91128 Palaiseau, France..
    Foerster, A.
    Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany..
    Fuessling, M.
    DESY, D-15738 Zeuthen, Germany..
    Gabici, S.
    Univ Paris Diderot, APC, AstroParticule & Cosmol, CNRS,IN2P3,CEA,Irfu,Observ Paris,Sorbonne Paris C, 10 Rue Alice Domon & Leonie Duquet, F-75205 Paris 13, France..
    Gajdus, M.
    Humboldt Univ, Inst Phys, Newtonstr 15, D-12489 Berlin, Germany..
    Gallant, Y. A.
    Univ Montpellier 2, Lab Universe & Particules Montpellier, CNRS, IN2P3, CC 72,Pl Eugene Bataillon, F-34095 Montpellier 5, France..
    Garrigoux, T.
    Univ Paris 07, LPNHE, Univ Paris 06, CNRS,IN2P3, 4 Pl Jussieu, F-75252 Paris 5, France..
    Giavitto, G.
    DESY, D-15738 Zeuthen, Germany..
    Giebels, B.
    Ecole Polytech, CNRS, IN2P3, Lab Leprince Ringuet, F-91128 Palaiseau, France..
    Glicenstein, J. F.
    CEA Saclay, DSM, Irfu, F-91191 Gif Sur Yvette, France..
    Gottschall, D.
    Univ Tubingen, Inst Astron & Astrophys, Sand 1, D-72076 Tubingen, Germany..
    Goyal, A.
    Uniwersytet Jagiellonski, Obserwatorium Astron, Ul Orla 171, PL-30244 Krakow, Poland..
    Grondin, M-H
    Grudzinska, M.
    Univ Warsaw, Astron Observ, Al Ujazdowskie 4, PL-00478 Warsaw, Poland..
    Hadasch, D.
    Leopold Franzens Univ Innsbruck, Inst Astro Teilchenphys, A-6020 Innsbruck, Austria..
    Haeffner, S.
    Univ Erlangen Nurnberg, Phys Inst, Erwin Rommel Str 1, D-91058 Erlangen, Germany..
    Hahn, J.
    Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany..
    Hawkes, J.
    Univ Adelaide, Sch Chem & Phys, Adelaide, SA 5005, Australia..
    Heinzelmann, G.
    Univ Hamburg, Inst Expt Phys, Luruper Chaussee 149, D-22761 Hamburg, Germany..
    Henri, G.
    Univ Grenoble Alpes, IPAG, F-38000 Grenoble, France.;CNRS, IPAG, F-38000 Grenoble, France..
    Hermann, G.
    Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany..
    Hervet, O.
    Univ Paris Diderot, LUTH, Observ Paris, CNRS, 5 Pl Jules Janssen, F-92190 Meudon, France..
    Hillert, A.
    Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany..
    Hinton, J. A.
    Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany.;Univ Leicester, Dept Phys & Astron, Univ Rd, Leicester LE1 7RH, Leics, UK.
    Hofmann, W.
    Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany..
    Hofverberg, P.
    Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany..
    Hoischen, C.
    Univ Potsdam, Inst Phys & Astron, Karl Liebknecht Str 24-25, D-14476 Golm, Germany..
    Holler, M.
    Ecole Polytech, CNRS, IN2P3, Lab Leprince Ringuet, F-91128 Palaiseau, France..
    Horns, D.
    Univ Hamburg, Inst Expt Phys, Luruper Chaussee 149, D-22761 Hamburg, Germany..
    Ivascenko, A.
    North West Univ, Ctr Space Res, ZA-2520 Potchefstroom, South Africa..
    Jacholkowska, A.
    Univ Paris 07, LPNHE, Univ Paris 06, CNRS,IN2P3, 4 Pl Jussieu, F-75252 Paris 5, France..
    Jamrozy, M.
    Uniwersytet Jagiellonski, Obserwatorium Astron, Ul Orla 171, PL-30244 Krakow, Poland..
    Janiak, M.
    Nicolaus Copernicus Astron Ctr, Ul Bartycka 18, PL-00716 Warsaw, Poland..
    Jankowsky, F.
    Heidelberg Univ, Landessternwarte, D-69117 Heidelberg, Germany..
    Jung-Richardt, I.
    Univ Erlangen Nurnberg, Phys Inst, Erwin Rommel Str 1, D-91058 Erlangen, Germany..
    Kastendieck, M. A.
    Univ Hamburg, Inst Expt Phys, Luruper Chaussee 149, D-22761 Hamburg, Germany..
    Katarzynski, K.
    Nicolaus Copernicus Univ, Fac Phys Astron & Informat, Ctr Astron, Grudziadzka 5, PL-87100 Torun, Poland..
    Katz, U.
    Univ Erlangen Nurnberg, Phys Inst, Erwin Rommel Str 1, D-91058 Erlangen, Germany..
    Kerszberg, D.
    Univ Paris 07, LPNHE, Univ Paris 06, CNRS,IN2P3, 4 Pl Jussieu, F-75252 Paris 5, France..
    Khelifi, B.
    Univ Paris Diderot, APC, AstroParticule & Cosmol, CNRS,IN2P3,CEA,Irfu,Observ Paris,Sorbonne Paris C, 10 Rue Alice Domon & Leonie Duquet, F-75205 Paris 13, France..
    Kieffer, M.
    Univ Paris 07, LPNHE, Univ Paris 06, CNRS,IN2P3, 4 Pl Jussieu, F-75252 Paris 5, France..
    Klepser, S.
    DESY, D-15738 Zeuthen, Germany..
    Klochkov, D.
    Univ Tubingen, Inst Astron & Astrophys, Sand 1, D-72076 Tubingen, Germany..
    Kluzniak, W.
    Nicolaus Copernicus Astron Ctr, Ul Bartycka 18, PL-00716 Warsaw, Poland..
    Kolitzus, D.
    Leopold Franzens Univ Innsbruck, Inst Astro Teilchenphys, A-6020 Innsbruck, Austria..
    Komin, Nu.
    Univ Witwatersrand, Sch Phys, 1 Jan Smuts Ave, ZA-2050 Johannesburg, South Africa..
    Kosack, K.
    CEA Saclay, DSM, Irfu, F-91191 Gif Sur Yvette, France..
    Krakau, S.
    Ruhr Univ Bochum, Inst Theoret Phys, Lehrstuhl Weltraum & Astrophys 4, D-44780 Bochum, Germany..
    Krayzel, F.
    Univ Savoie Mt Blanc, Lab Annecy le Vieux Phys Particules, CNRS, IN2P3, F-74941 Annecy Le Vieux, France..
    Krueger, P. P.
    North West Univ, Ctr Space Res, ZA-2520 Potchefstroom, South Africa..
    Laffon, H.
    Univ Bordeaux, CNRS, IN2P3, Ctr Etud Nucl Bordeaux Gradignan, F-33175 Gradignan, France..
    Lamanna, G.
    Univ Savoie Mt Blanc, Lab Annecy le Vieux Phys Particules, CNRS, IN2P3, F-74941 Annecy Le Vieux, France..
    Lau, J.
    Univ Adelaide, Sch Chem & Phys, Adelaide, SA 5005, Australia..
    Lefaucheur, J.
    Univ Paris Diderot, APC, AstroParticule & Cosmol, CNRS,IN2P3,CEA,Irfu,Observ Paris,Sorbonne Paris C, 10 Rue Alice Domon & Leonie Duquet, F-75205 Paris 13, France..
    Lefranc, V.
    CEA Saclay, DSM, Irfu, F-91191 Gif Sur Yvette, France..
    Lemiere, A.
    Univ Paris Diderot, APC, AstroParticule & Cosmol, CNRS,IN2P3,CEA,Irfu,Observ Paris,Sorbonne Paris C, 10 Rue Alice Domon & Leonie Duquet, F-75205 Paris 13, France..
    Lemoine-Goumard, M.
    Univ Bordeaux, CNRS, IN2P3, Ctr Etud Nucl Bordeaux Gradignan, F-33175 Gradignan, France..
    Lenain, J-P
    Lohse, T.
    Humboldt Univ, Inst Phys, Newtonstr 15, D-12489 Berlin, Germany..
    Lopatin, A.
    Univ Erlangen Nurnberg, Phys Inst, Erwin Rommel Str 1, D-91058 Erlangen, Germany..
    Lu, C-C
    Lui, R.
    Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany..
    Marandon, V.
    Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany..
    Marcowith, A.
    Univ Montpellier 2, Lab Universe & Particules Montpellier, CNRS, IN2P3, CC 72,Pl Eugene Bataillon, F-34095 Montpellier 5, France..
    Mariaud, C.
    Ecole Polytech, CNRS, IN2P3, Lab Leprince Ringuet, F-91128 Palaiseau, France..
    Marx, R.
    Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany..
    Maurin, G.
    Univ Savoie Mt Blanc, Lab Annecy le Vieux Phys Particules, CNRS, IN2P3, F-74941 Annecy Le Vieux, France..
    Maxted, N.
    Univ Montpellier 2, Lab Universe & Particules Montpellier, CNRS, IN2P3, CC 72,Pl Eugene Bataillon, F-34095 Montpellier 5, France..
    Mayer, M.
    Humboldt Univ, Inst Phys, Newtonstr 15, D-12489 Berlin, Germany..
    Meintjes, P. J.
    Univ Orange Free State, Dept Phys, POB 339, ZA-9300 Bloemfontein, South Africa..
    Menzler, U.
    Ruhr Univ Bochum, Inst Theoret Phys, Lehrstuhl Weltraum & Astrophys 4, D-44780 Bochum, Germany..
    Meyer, M.
    Stockholm Univ, Albanova Univ Ctr, Dept Phys, Oskar Klein Ctr, SE-10691 Stockholm, Sweden..
    Mitchell, A. M. W.
    Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany..
    Moderski, R.
    Nicolaus Copernicus Astron Ctr, Ul Bartycka 18, PL-00716 Warsaw, Poland..
    Mohamed, M.
    Heidelberg Univ, Landessternwarte, D-69117 Heidelberg, Germany..
    Mora, K.
    Stockholm Univ, Albanova Univ Ctr, Dept Phys, Oskar Klein Ctr, SE-10691 Stockholm, Sweden..
    Moulin, E.
    CEA Saclay, DSM, Irfu, F-91191 Gif Sur Yvette, France..
    Murach, T.
    Humboldt Univ, Inst Phys, Newtonstr 15, D-12489 Berlin, Germany..
    de Naurois, M.
    Ecole Polytech, CNRS, IN2P3, Lab Leprince Ringuet, F-91128 Palaiseau, France..
    Niemiec, J.
    Inst Fizyki Jadrowej PAN, Ul Radzikowskiego 152, PL-31342 Krakow, Poland..
    Oakes, L.
    Humboldt Univ, Inst Phys, Newtonstr 15, D-12489 Berlin, Germany..
    Odaka, H.
    Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany..
    Oettl, S.
    Leopold Franzens Univ Innsbruck, Inst Astro Teilchenphys, A-6020 Innsbruck, Austria..
    Ohm, S.
    DESY, D-15738 Zeuthen, Germany..
    Opitz, B.
    Univ Hamburg, Inst Expt Phys, Luruper Chaussee 149, D-22761 Hamburg, Germany..
    Ostrowski, M.
    Uniwersytet Jagiellonski, Obserwatorium Astron, Ul Orla 171, PL-30244 Krakow, Poland..
    Oya, I.
    DESY, D-15738 Zeuthen, Germany..
    Panter, M.
    Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany..
    Parsons, R. D.
    Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany..
    Arribas, M. Paz
    Humboldt Univ, Inst Phys, Newtonstr 15, D-12489 Berlin, Germany..
    Pekeur, N. W.
    North West Univ, Ctr Space Res, ZA-2520 Potchefstroom, South Africa..
    Pelletier, G.
    Univ Grenoble Alpes, IPAG, F-38000 Grenoble, France.;CNRS, IPAG, F-38000 Grenoble, France..
    Petrucci, P-O
    Peyaud, B.
    CEA Saclay, DSM, Irfu, F-91191 Gif Sur Yvette, France..
    Pita, S.
    Univ Paris Diderot, APC, AstroParticule & Cosmol, CNRS,IN2P3,CEA,Irfu,Observ Paris,Sorbonne Paris C, 10 Rue Alice Domon & Leonie Duquet, F-75205 Paris 13, France..
    Poon, H.
    Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany..
    Prokoph, Heike
    Linnaeus University, Faculty of Technology, Department of Physics and Electrical Engineering.
    Puehlhofer, G.
    Univ Tubingen, Inst Astron & Astrophys, Sand 1, D-72076 Tubingen, Germany..
    Punch, Michael
    Univ Paris Diderot, APC, AstroParticule & Cosmol, CNRS,IN2P3,CEA,Irfu,Observ Paris,Sorbonne Paris C, 10 Rue Alice Domon & Leonie Duquet, F-75205 Paris 13, France..
    Quirrenbach, A.
    Heidelberg Univ, Landessternwarte, D-69117 Heidelberg, Germany..
    Raab, S.
    Univ Erlangen Nurnberg, Phys Inst, Erwin Rommel Str 1, D-91058 Erlangen, Germany..
    Reichardt, I.
    Univ Paris Diderot, APC, AstroParticule & Cosmol, CNRS,IN2P3,CEA,Irfu,Observ Paris,Sorbonne Paris C, 10 Rue Alice Domon & Leonie Duquet, F-75205 Paris 13, France..
    Reimer, A.
    Leopold Franzens Univ Innsbruck, Inst Astro Teilchenphys, A-6020 Innsbruck, Austria..
    Reimer, O.
    Leopold Franzens Univ Innsbruck, Inst Astro Teilchenphys, A-6020 Innsbruck, Austria..
    Renaud, M.
    Univ Montpellier 2, Lab Universe & Particules Montpellier, CNRS, IN2P3, CC 72,Pl Eugene Bataillon, F-34095 Montpellier 5, France..
    de los Reyes, R.
    Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany..
    Rieger, F.
    Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany.;ITA Univ Heidelberg, Heidelberg, Germany..
    Romoli, C.
    Dublin Inst Adv Studies, 31 Fitzwilliam Pl, Dublin 2, Ireland..
    Rosier-Lees, S.
    Univ Savoie Mt Blanc, Lab Annecy le Vieux Phys Particules, CNRS, IN2P3, F-74941 Annecy Le Vieux, France..
    Rowell, G.
    Univ Adelaide, Sch Chem & Phys, Adelaide, SA 5005, Australia..
    Rudak, B.
    Nicolaus Copernicus Astron Ctr, Ul Bartycka 18, PL-00716 Warsaw, Poland..
    Rulten, C. B.
    Univ Paris Diderot, LUTH, Observ Paris, CNRS, 5 Pl Jules Janssen, F-92190 Meudon, France..
    Sahakian, V.
    Natl Acad Sci Republ Armenia, Marshall Baghramian Ave 24, Yerevan 0019, Armenia.;Yerevan Phys Inst, 2 Alikhanian Bros St, Yerevan 375036, Armenia..
    Salek, D.
    Univ Amsterdam, Inst High Energy Phys, GRAPPA, Sci Pk 904, NL-1098 XH Amsterdam, Netherlands..
    Sanchez, D. A.
    Univ Savoie Mt Blanc, Lab Annecy le Vieux Phys Particules, CNRS, IN2P3, F-74941 Annecy Le Vieux, France..
    Santangelo, A.
    Univ Tubingen, Inst Astron & Astrophys, Sand 1, D-72076 Tubingen, Germany..
    Sasaki, M.
    Univ Tubingen, Inst Astron & Astrophys, Sand 1, D-72076 Tubingen, Germany..
    Schlickeiser, R.
    Ruhr Univ Bochum, Inst Theoret Phys, Lehrstuhl Weltraum & Astrophys 4, D-44780 Bochum, Germany..
    Schuessler, F.
    CEA Saclay, DSM, Irfu, F-91191 Gif Sur Yvette, France..
    Schulz, A.
    DESY, D-15738 Zeuthen, Germany..
    Schwanke, U.
    Humboldt Univ, Inst Phys, Newtonstr 15, D-12489 Berlin, Germany..
    Schwemmer, S.
    Heidelberg Univ, Landessternwarte, D-69117 Heidelberg, Germany..
    Seyffert, A. S.
    North West Univ, Ctr Space Res, ZA-2520 Potchefstroom, South Africa..
    Simoni, R.
    Univ Amsterdam, Astron Inst Anton Pannekoek, GRAPPA, Sci Pk 904, NL-1098 XH Amsterdam, Netherlands..
    Sol, H.
    Univ Paris Diderot, LUTH, Observ Paris, CNRS, 5 Pl Jules Janssen, F-92190 Meudon, France..
    Spanier, F.
    North West Univ, Ctr Space Res, ZA-2520 Potchefstroom, South Africa..
    Spengler, G.
    Stockholm Univ, Albanova Univ Ctr, Dept Phys, Oskar Klein Ctr, SE-10691 Stockholm, Sweden..
    Spies, F.
    Univ Hamburg, Inst Expt Phys, Luruper Chaussee 149, D-22761 Hamburg, Germany..
    Stawarz, L.
    Uniwersytet Jagiellonski, Obserwatorium Astron, Ul Orla 171, PL-30244 Krakow, Poland..
    Steenkamp, R.
    Univ Namibia, Dept Phys, Private Bag 13301, Windhoek, Namibia..
    Stegmann, C.
    Univ Potsdam, Inst Phys & Astron, Karl Liebknecht Str 24-25, D-14476 Golm, Germany.;DESY, D-15738 Zeuthen, Germany..
    Stinzing, F.
    Univ Erlangen Nurnberg, Phys Inst, Erwin Rommel Str 1, D-91058 Erlangen, Germany..
    Stycz, K.
    DESY, D-15738 Zeuthen, Germany..
    Sushch, I.
    North West Univ, Ctr Space Res, ZA-2520 Potchefstroom, South Africa..
    Tavernet, J-P
    Tavernier, T.
    Univ Paris Diderot, APC, AstroParticule & Cosmol, CNRS,IN2P3,CEA,Irfu,Observ Paris,Sorbonne Paris C, 10 Rue Alice Domon & Leonie Duquet, F-75205 Paris 13, France..
    Taylor, A. M.
    Dublin Inst Adv Studies, 31 Fitzwilliam Pl, Dublin 2, Ireland..
    Terrier, R.
    Univ Paris Diderot, APC, AstroParticule & Cosmol, CNRS,IN2P3,CEA,Irfu,Observ Paris,Sorbonne Paris C, 10 Rue Alice Domon & Leonie Duquet, F-75205 Paris 13, France..
    Tluczykont, M.
    Univ Hamburg, Inst Expt Phys, Luruper Chaussee 149, D-22761 Hamburg, Germany..
    Trichard, C.
    Univ Savoie Mt Blanc, Lab Annecy le Vieux Phys Particules, CNRS, IN2P3, F-74941 Annecy Le Vieux, France..
    Tuffs, R.
    Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany..
    Valerius, K.
    Univ Erlangen Nurnberg, Phys Inst, Erwin Rommel Str 1, D-91058 Erlangen, Germany..
    van der Walt, J.
    North West Univ, Ctr Space Res, ZA-2520 Potchefstroom, South Africa..
    van Eldik, C.
    Univ Erlangen Nurnberg, Phys Inst, Erwin Rommel Str 1, D-91058 Erlangen, Germany..
    van Soelen, B.
    Univ Orange Free State, Dept Phys, POB 339, ZA-9300 Bloemfontein, South Africa..
    Vasileiadis, G.
    Univ Montpellier 2, Lab Universe & Particules Montpellier, CNRS, IN2P3, CC 72,Pl Eugene Bataillon, F-34095 Montpellier 5, France..
    Veh, J.
    Univ Erlangen Nurnberg, Phys Inst, Erwin Rommel Str 1, D-91058 Erlangen, Germany..
    Venter, C.
    North West Univ, Ctr Space Res, ZA-2520 Potchefstroom, South Africa..
    Viana, A.
    Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany..
    Vincent, P.
    Univ Paris 07, LPNHE, Univ Paris 06, CNRS,IN2P3, 4 Pl Jussieu, F-75252 Paris 5, France..
    Vink, J.
    Univ Amsterdam, Astron Inst Anton Pannekoek, GRAPPA, Sci Pk 904, NL-1098 XH Amsterdam, Netherlands..
    Voisin, F.
    Univ Adelaide, Sch Chem & Phys, Adelaide, SA 5005, Australia..
    Voelk, H. J.
    Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany..
    Vuillaume, T.
    Univ Grenoble Alpes, IPAG, F-38000 Grenoble, France.;CNRS, IPAG, F-38000 Grenoble, France..
    Wagner, S. J.
    Heidelberg Univ, Landessternwarte, D-69117 Heidelberg, Germany..
    Wagner, P.
    Humboldt Univ, Inst Phys, Newtonstr 15, D-12489 Berlin, Germany..
    Wagner, R. M.
    Stockholm Univ, Albanova Univ Ctr, Dept Phys, Oskar Klein Ctr, SE-10691 Stockholm, Sweden..
    Weidinger, M.
    Ruhr Univ Bochum, Inst Theoret Phys, Lehrstuhl Weltraum & Astrophys 4, D-44780 Bochum, Germany..
    Weitzel, Q.
    Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany..
    White, R.
    Univ Leicester, Dept Phys & Astron, Univ Rd, Leicester LE1 7RH, Leics, UK.
    Wierzcholska, A.
    Inst Fizyki Jadrowej PAN, Ul Radzikowskiego 152, PL-31342 Krakow, Poland.;Heidelberg Univ, Landessternwarte, D-69117 Heidelberg, Germany..
    Willmann, P.
    Univ Erlangen Nurnberg, Phys Inst, Erwin Rommel Str 1, D-91058 Erlangen, Germany..
    Woernlein, A.
    Univ Erlangen Nurnberg, Phys Inst, Erwin Rommel Str 1, D-91058 Erlangen, Germany..
    Wouters, D.
    CEA Saclay, DSM, Irfu, F-91191 Gif Sur Yvette, France..
    Yang, R.
    Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany..
    Zabalza, V.
    Univ Leicester, Dept Phys & Astron, Univ Rd, Leicester LE1 7RH, Leics, UK.
    Zaborov, D.
    Ecole Polytech, CNRS, IN2P3, Lab Leprince Ringuet, F-91128 Palaiseau, France..
    Zacharias, M.
    Heidelberg Univ, Landessternwarte, D-69117 Heidelberg, Germany..
    Zdziarski, A. A.
    Nicolaus Copernicus Astron Ctr, Ul Bartycka 18, PL-00716 Warsaw, Poland..
    Zech, A.
    Univ Paris Diderot, LUTH, Observ Paris, CNRS, 5 Pl Jules Janssen, F-92190 Meudon, France..
    Zefi, F.
    Ecole Polytech, CNRS, IN2P3, Lab Leprince Ringuet, F-91128 Palaiseau, France..
    Zywucka, N.
    Uniwersytet Jagiellonski, Obserwatorium Astron, Ul Orla 171, PL-30244 Krakow, Poland..
    Acceleration of petaelectronvolt protons in the Galactic Centre2016In: Nature, ISSN 0028-0836, E-ISSN 1476-4687, Vol. 531, no 7595, p. 476-479Article in journal (Refereed)
    Abstract [en]

    Galactic cosmic rays reach energies of at least a few petaelectronvolts(1) (of the order of 1015 electronvolts). This implies that our Galaxy contains petaelectronvolt accelerators ('PeVatrons'), but all proposed models of Galactic cosmic-ray accelerators encounter difficulties at exactly these energies(2). Dozens of Galactic accelerators capable of accelerating particles to energies of tens of teraelectronvolts (of the order of 10(13) electronvolts) were inferred from recent gamma-ray observations(3). However, none of the currently known accelerators-not even the handful of shell-type supernova remnants commonly believed to supply most Galactic cosmic rays-has shown the characteristic tracers of petaelectronvolt particles, namely, power-law spectra of.-rays extending without a cut-off or a spectral break to tens of teraelectronvolts(4). Here we report deep.-ray observations with arcminute angular resolution of the region surrounding the Galactic Centre, which show the expected tracer of the presence of petaelectronvolt protons within the central 10 parsecs of the Galaxy. We propose that the supermassive black hole Sagittarius A* is linked to this PeVatron. Sagittarius A* went through active phases in the past, as demonstrated by X-ray outbursts(5) and an outflow from the Galactic Centre(6). Although its current rate of particle acceleration is not sufficient to provide a substantial contribution to Galactic cosmic rays, Sagittarius A* could have plausibly been more active over the last 10(6)-10(7) years, and therefore should be considered as a viable alternative to supernova remnants as a source of petaelectronvolt Galactic cosmic rays.

  • 156.
    Abramowski, A.
    et al.
    Univ Hamburg, Inst Expt Phys, D-22761 Hamburg, Germ ; Max Planck Inst Kernphys, D-69029 Heidelberg, Germanyny.
    Aharonian, F.
    Max Planck Inst Kernphys, D-69029 Heidelberg, Germany ; Dublin Inst Adv Studies, Dublin 2, Ireland ; Natl Acad Sci Republ Armenia, Yerevan, Armenia.
    Benkhali, F. Ait
    Max Planck Inst Kernphys, D-69029 Heidelberg, Germany.
    Akhperjanian, A. G.
    Natl Acad Sci Republ Armenia, Yerevan, Armenia ; Yerevan Phys Inst, Yerevan 375036, Armenia .
    Anguner, E. O.
    Humboldt Univ, Inst Phys, D-12489 Berlin, Germany.
    Backes, M.
    Univ Namibia, Dept Phys, Windhoek, Namibia.
    Balenderan, S.
    Univ Durham, Dept Phys, Durham DH1 3LE, England.
    Balzer, A.
    Univ Amsterdam, Astron Inst Anton Pannekoek, GRAPPA, NL-1098 XH Amsterdam, Netherlands.
    Barnacka, A.
    Uniwersytet Jagiellonski, PL-30244 Krakow, Poland ; Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA .
    Becherini, Yvonne
    Linnaeus University, Faculty of Technology, Department of Physics and Electrical Engineering.
    Tjus, J. Becker
    Berge, D.
    Bernhard, S.
    Bernlohr, K.
    Birsin, E.
    Biteau, J.
    Bottcher, M.
    Boisson, C.
    Bolmont, J.
    Bordas, P.
    Bregeon, J.
    Brun, F.
    Brun, P.
    Bryan, M.
    Bulik, T.
    Carrigan, S.
    Casanova, S.
    Chadwick, P. M.
    Chakraborty, N.
    Chalme-Calvet, R.
    Chaves, R. C. G.
    Chretien, M.
    Colafrancesco, S.
    Cologna, G.
    Conrad, J.
    Couturier, C.
    Cui, Y.
    Dalton, M.
    Davids, I. D.
    Degrange, B.
    Deil, C.
    dewilt, P.
    Djannati-Atai, A.
    Domainko, W.
    Donath, A.
    Drury, L. O 'C.
    Dubus, G.
    Dutson, K.
    Dyks, J.
    Dyrda, M.
    Edwards, T.
    Egberts, K.
    Eger, P.
    Espigat, P.
    Farnier, C.
    Fegan, S.
    Feinstein, F.
    Fernandes, M. V.
    Fernandez, D.
    Fiasson, A.
    Fontaine, G.
    Forster, A.
    Fuling, M.
    Gabici, S.
    Gajdus, M.
    Gallant, Y. A.
    Garrigoux, T.
    Giavitto, G.
    Giebels, B.
    Glicenstein, J. F.
    Gottschall, D.
    Grondin, M. -H
    Grudzinska, M.
    Hadsch, D.
    Haeffner, S.
    Hahn, J.
    Harris, J.
    Heinzelmann, G.
    Henri, G.
    Hermann, G.
    Hervet, O.
    Hillert, A.
    Hinton, J. A.
    Hofmann, W.
    Hofverberg, P.
    Holler, M.
    Horns, D.
    Ivascenko, A.
    Jacholkowska, A.
    Jahn, C.
    Jamrozy, M.
    Janiak, M.
    Jankowsky, F.
    Jung, I.
    Kastendieck, M. A.
    Katarzynski, K.
    Katz, U.
    Kaufmann, S.
    Khelifi, B.
    Kiefeer, M.
    Klepser, S.
    Klochkov, D.
    Kluzniak, W.
    Kolitzus, D.
    Komin, Nu.
    Kosack, K.
    Krakau, S.
    Krayzel, F.
    Kruger, P. P.
    Laffon, H.
    Lamanna, G.
    Lefaucheur, J.
    Lefranc, V.
    Lemiere, A.
    Lemoine-Goumard, M.
    Lenain, J. -P
    Lohse, T.
    Lopatin, A.
    Lu, C. -C
    Marandon, V.
    Marcowith, A.
    Marx, R.
    Maurin, G.
    Maxted, N.
    Mayer, M.
    McComb, T. J. L.
    Mehault, J.
    Meintjes, P. J.
    Menzler, U.
    Meyer, M.
    Mitchell, A. M. W.
    Moderski, R.
    Mohamed, M.
    Mora, K.
    Moulin, E.
    Murach, T.
    de Naurois, M.
    Niemiec, J.
    Nolan, S. J.
    Oakes, L.
    Odaka, H.
    Ohm, S.
    Opitz, B.
    Ostrowski, M.
    Oya, I.
    Panter, M.
    Parsons, R. D.
    Arribas, M. Paz
    Pekeur, N. W.
    Pelletier, G.
    Perez, J.
    Petrucci, P. -O
    Peyaud, B.
    Pita, S.
    Poon, H.
    Puhlhofer, G.
    Punch, Michael
    Univ Paris Diderot, APC, AstroParticule & Cosmology, CNRS,IN2P3,CEA,Irfu, Observ Paris,Sorbonne Paris C, 10 Rue Alice Domon & Leonie Duquet, F-75205 Paris 13, France.
    Quirrenbach, A.
    Raab, S.
    Reichardt, I.
    Reimer, A.
    Reimer, O.
    Renaud, M.
    de los Reyes, R.
    Rieger, F.
    Rob, L.
    Romoli, C.
    Rosier-Lees, S.
    Rowell, G.
    Rudak, B.
    Rulten, C. B.
    Sahakian, V.
    Salek, D.
    Sanchez, D. A.
    Santangelo, A.
    Schlickeiser, R.
    Schussler, F.
    Schulz, A.
    Schwanke, U.
    Schwarzburg, S.
    Schwemmer, S.
    Sol, H.
    Spanier, F.
    Spengler, G.
    Spies, F.
    Stawarz, L.
    Steenkamp, R.
    Stegmann, C.
    Stinzing, F.
    Stycz, K.
    Sushch, I.
    Tavernet, J. -P
    Tavernier, T.
    Taylor, A. M.
    Terrier, R.
    Tluczykont, M.
    Trichard, C.
    Valerius, K.
    Van Eldik, C.
    Van Soelen, B.
    Vasileiadis, G.
    Veh, J.
    Venter, C.
    Viana, A.
    Vincent, P.
    Vink, J.
    Volk, H. J.
    Volpe, F.
    Vorster, M.
    Vuillaume, T.
    Wagner, S. J.
    Wagner, P.
    Wagner, R. M.
    Ward, M.
    Weidinger, M.
    Weitzel, Q.
    White, R.
    Wierzcholska, A.
    Willmann, P.
    Wornlein, A.
    Wouters, D.
    Yang, R.
    Zabalza, V.
    Zaborov, D.
    Zacharias, M.
    Zdziarski, A. A.
    Zech, A.
    Zechlin, H. -S
    Long-term monitoring of PKS2155-304 with ATOM and HESS:investigation of optical/gamma-ray correlations in different spectral states2014In: Astronomy and Astrophysics, ISSN 0004-6361, E-ISSN 1432-0746, Vol. 571, article id A39Article in journal (Refereed)
    Abstract [en]

    In this paper we report on the analysis of all the available optical and very high-energy gamma-ray (> 200 GeV) data for the BL Lac object PKS 2155-304, collected simultaneously with the ATOM and H.E.S.S. telescopes from 2007 until 2009. This study also includes X-ray (RXTE, Swift) and high-energy gamma-ray (Fermi-LAT) data. During the period analysed, the source was transitioning from its flaring to quiescent optical states, and was characterized by only moderate flux changes at different wavelengths on the timescales of days and months. A flattening of the optical continuum with an increasing optical flux can be noted in the collected dataset, but only occasionally and only at higher flux levels. We did not find any universal relation between the very high-energy gamma-ray and optical flux changes on the timescales from days and weeks up to several years. On the other hand, we noted that at higher flux levels the source can follow two distinct tracks in the optical flux-colour diagrams, which seem to be related to distinct gamma-ray states of the blazar. The obtained results therefore indicate a complex scaling between the optical and gamma-ray emission of PKS 2155 304, with different correlation patterns holding at different epochs, and a gamma-ray flux depending on the combination of an optical flux and colour rather than a flux alone.

  • 157.
    Abramowski, A.
    et al.
    University of Hamburg, Germany.
    Aharonian, F.
    Max Planck Inst Kernphys, Germany ; Dublin Inst Adv Studies, Ireland ; Natl Acad Sci Republ Armenia, Armenia.
    Benkhali, F. Ait
    Max Planck Inst Kernphys, Germany.
    Akhperjanian, A. G.
    Natl Acad Sci Republ Armenia, Armenia ; Yerevan Phys Inst, Armenia.
    Anguner, E. O.
    Humboldt Univ, Germany.
    Backes, M.
    Univ Namibia, Namibia.
    Balenderans, S.
    Univ Durham, UK.
    Balzer, A.
    Univ Amsterdam, Netherlands.
    Barnacka, A.
    Uniwersytet Jagiellonski, Poland.
    Becherini, Yvonne
    Linnaeus University, Faculty of Technology, Department of Physics and Electrical Engineering.
    Tjus, J. Becker
    Berge, D.
    Bernhard, S.
    Bernloehr, K.
    Birsin, E.
    Biteau, J.
    Boettcher, M.
    Boisson, C.
    Bolmont, J.
    Bordas, P.
    Bregeon, J.
    Brun, F.
    Brun, P.
    Bryan, M.
    Bulik, T.
    Carrigan, S.
    Casanova, S.
    Chadwick, P. M.
    Chatraborty, N.
    Chalme-Calvet, R.
    Chaves, R. C. G.
    Chretien, M.
    Colafrancesco, S.
    Cologna, G.
    Conrad, J.
    Couturier, C.
    Cui, Y.
    Davids, I. D.
    Degrange, B.
    Deil, C.
    deWilt, P.
    Djannati-Atai, A.
    Domainko, W.
    Donath, A.
    Drury, L. O ' C
    Dubus, G.
    Dutson, K.
    Dyks, J.
    Dyrda, M.
    Edwards, T.
    Egberts, K.
    Eger, P.
    Espigat, P.
    Farnier, C.
    Fegan, S.
    Feinstein, F.
    Fernandes, M. V.
    Fernandez, D.
    Fiasson, A.
    Fontaine, G.
    Foerster, A.
    Fuessling, M.
    Gabici, S.
    Gajdus, M.
    Gallant, Y. A.
    Garrigoux, T.
    Giavitto, G.
    Giebels, B.
    Glicenstein, J. F.
    Gottschall, D.
    Grondin, M. -H
    Grudzinska, M.
    Hadasch, D.
    Haeffner, S.
    Hahn, J.
    Harris, J.
    Heinzelmann, G.
    Henri, G.
    Hermann, G.
    Hervet, O.
    Hillert, A.
    Hinton, J. A.
    Hofmann, W.
    Hofverberg, P.
    Holler, M.
    Horns, D.
    Ivascenko, A.
    Jacholkowska, A.
    Jahn, C.
    Jamrozy, M.
    Janiak, M.
    Jankowsky, F.
    Jung-Richardt, O.
    Kastendieck, M. A.
    Katarzynski, K.
    Katz, U.
    Kaufmann, S.
    Khelifi, B.
    Kieffer, M.
    Klepser, S.
    Klochkov, D.
    Kluzniak, W.
    Kolitzus, D.
    Komin, Nu
    Kosack, K.
    Krakau, S.
    Krayzel, F.
    Krueger, P. P.
    Laffon, H.
    Lamanna, G.
    Lefaucheur, J.
    Lefranc, V.
    Lemiere, A.
    Lemoine-Goumard, M.
    Lenain, J. P.
    Lohse, T.
    Lopatin, A.
    Lu, C-C
    Marandon, V.
    Marcowith, A.
    Marx, R.
    Maurin, G.
    Maxted, N.
    Mayer, M.
    McComb, T. J. L.
    Mehault, J.
    Meintjes, P. J.
    Menzler, U.
    Meyer, M.
    Mitchell, A. M. W.
    Moderski, R.
    Mohamed, M.
    Mora, K.
    Moulin, E.
    Murach, T.
    de Naurois, M.
    Niemiec, J.
    Nolan, S. J.
    Oakes, L.
    Odaka, H.
    Ohm, S.
    Opitz, B.
    Ostrowski, M.
    Oya, I.
    Panter, M.
    Parsons, R. D.
    Anibas, M. Paz
    Pekeur, N. W.
    Pelletier, G.
    Petrucci, P-O
    Peyaud, B.
    Pita, S.
    Poon, H.
    Puehlhofer, G.
    Punch, Michael
    Université Paris Diderot, France.
    Quirrenbach, A.
    Raab, S.
    Reichardt, I.
    Reimer, A.
    Reimer, O.
    Renaud, M.
    de los Reyes, R.
    Rieger, F.
    Romoli, C.
    Rosier-Lees, S.
    Rowell, G.
    Rudak, B.
    Rulten, C. B.
    Sahakian, V.
    Salek, D.
    Sanchez, D. A.
    Santangelo, A.
    Schlickeiser, R.
    Schuessler, F.
    Schulz, A.
    Schwanke, U.
    Schwarzburg, S.
    Schwemmer, S.
    Sol, H.
    Spanier, F.
    Spengler, G.
    Spies, F.
    Stawarz, L.
    Steenkamp, R.
    Stegmann, C.
    Stinzing, F.
    Stycz, K.
    Sushch, I.
    Tavernet, J-P
    Tavernier, T.
    Taylor, A. M.
    Terrier, R.
    Tluczykont, M.
    Trichard, C.
    Valerius, K.
    van Eldik, C.
    van Soelen, B.
    Vasileiadis, G.
    Veh, J.
    Venter, C.
    Viana, A.
    Vincent, P.
    Vink, J.
    Voelk, H. J.
    Volpe, F.
    Vorster, M.
    Vuillaume, T.
    Wagner, S. J.
    Wagner, P.
    Wagner, R. M.
    Ward, M.
    Weidinger, M.
    Weitzel, Q.
    White, R.
    Wierzcholska, A.
    Willmann, P.
    Woernlein, A.
    Wouters, D.
    Yang, R.
    Zabalza, V.
    Zaborov, D.
    Zacharias, M.
    Zdziarski, A. A.
    Zech, A.
    Zechlin, H-S
    H.E.S.S. detection of TeV emission from the interaction region between the supernova remnant G349.7+0.2 and a molecular cloud2015In: Astronomy and Astrophysics, ISSN 0004-6361, E-ISSN 1432-0746, Vol. 574, p. 1-7, article id A100Article in journal (Refereed)
    Abstract [en]

    G349.7+0.2 is a young Galactic supernova remnant (SNR) located at the distance of 11.5 kpc and observed across the entire electromagnetic spectrum from radio to high energy (HE; 0.1 GeV < E < 100 GeV) gamma-rays. Radio and infrared observations indicate that the remnant is interacting with a molecular cloud. In this paper, the detection of very high energy (VHE, E > 100 GeV) gamma-ray emission coincident with this SNR with the High Energy Stereoscopic System (HESS.) is reported. This makes it one of the farthest Galactic SNR ever detected in this domain. An integral flux F(E > 400 GeV) = (6.5 +/- 1.1(stat) +/- 1.3(syst)) x 10-11 ph cm(-2) s(-1) corresponding to similar to 0.7% of that of the Crab Nebula and to a luminosity of similar to 10(34) erg s(-1) above the same energy threshold, and a steep photon index Gamma(VHE) = 2.8 +/- 0.27(stat) +/- 0.20(syst) are measured. The analysis of more than 5 yr of Fermi-LAT data towards this source shows a power-law like spectrum with a best-fit photon index Gamma(HE) = 2.2 +/- 0.04.2(stat-0.31sys)(+0.13), The combined gamma-ray spectrum of 0349.7+0.2 can be described by either a broken power law (I3PL) or a power law with exponential (or sub exponential) cutoff (PLC). In the former case, the photon break energy is found at E-br,E-gamma = 551(-30)(+70) GeV, slightly higher than what is usually observed in the HE/VHE gamma-ray emitting middle-aged SNRs known to be interacting with molecular clouds. In the latter case. the exponential (respectively sub-exponential) cutoff energy is measured at E-cat,E-gamma = 1.4(-0.55)(+1.6) (respectively 0.35(-0.21)(+0.75)) TeV. A pion decay process resulting from the interaction of the accelerated protons and nuclei with the dense surrounding medium is clearly the preferred scenario to explain the gamma-ray emission. The BPL with a spectral steepening of 0.5-1 and the PLC provide equally good fits to the data. The product or the average gas density and the total energy content of accelerated protons and nuclei amounts to nu W-p similar to 5 x 10(51) erg cm(-3)

  • 158.
    Abramowski, A.
    et al.
    University of Hamburg, Germany.
    Aharonian, F.
    Max Planck Institute for Nuclear Physics, Germany ; Dublin Institute for Advanced Studies, Ireland ; National Academy of Sciences of the Republic of Armenia, Armenia.
    Benkhali, F. Ait
    Max Planck Institute for Nuclear Physics, Germany.
    Akhperjanian, A. G.
    National Academy of Sciences of the Republic of Armenia, Armenia ; Yerevan Physics Institute, Armenia.
    Angüner, E.
    Humboldt-Universität zu Berlin, Germany.
    Anton, G.
    Friedrich-Alexander-Universität Erlangen-Nürnberg, Germany.
    Balenderan, S.
    University of Durham, UK.
    Balzer, A.
    DESY, Germany ; University of Potsdam, Germany.
    Barnacka, A.
    Nicolaus Copernicus Astronomical Center, Poland.
    Becherini, Yvonne
    Linnaeus University, Faculty of Technology, Department of Physics and Electrical Engineering.
    Tjus, J. Becker
    Bernloehr, K.
    Birsin, E.
    Bissaldi, E.
    Biteau, J.
    Boettcher, M.
    Boisson, C.
    Bolmont, J.
    Bordas, P.
    Brucker, J.
    Brun, F.
    Brun, P.
    Bulik, T.
    Carrigan, S.
    Casanova, S.
    Cerruti, M.
    Chadwick, P. M.
    Chalme-Calvet, R.
    Chaves, R. C. G.
    Cheesebrough, A.
    Chretien, M.
    Colafrancesco, S.
    Cologna, G.
    Conrad, J.
    Couturier, C.
    Cui, Y.
    Dalton, M.
    Daniel, M. K.
    Davids, I. D.
    Degrange, B.
    Deil, C.
    deWilt, P.
    Dickinson, H. J.
    Djannati-Ataie, A.
    Domainko, W.
    Drury, L. O 'C.
    Dubus, G.
    Dutson, K.
    Dyks, J.
    Dyrda, M.
    Edwards, T.
    Egberts, K.
    Eger, P.
    Espigat, P.
    Farnier, C.
    Fegan, S.
    Feinstein, F.
    Fernandes, M. V.
    Fernandez, D.
    Fiasson, A.
    Fontaine, G.
    Foerster, A.
    Fuessling, M.
    Gajdus, M.
    Gallant, Y. A.
    Garrigoux, T.
    Giavitto, G.
    Giebels, B.
    Glicenstein, J. F.
    Grondin, M. -H
    Grudzinska, M.
    Haeffner, S.
    Hahn, J.
    Harris, J.
    Heinzelmann, G.
    Henri, G.
    Hermann, G.
    Hervet, O.
    Hillert, A.
    Hinton, J. A.
    Hofmann, W.
    Hofverberg, P.
    Holler, M.
    Horns, D.
    Jacholkowska, A.
    Jahn, C.
    Jamrozy, M.
    Janiak, M.
    Jankowsky, F.
    Jung, I.
    Kastendieck, M. A.
    Katarzynski, K.
    Katz, U.
    Kaufmann, S.
    Khelifi, B.
    Kieffer, M.
    Klepser, S.
    Klochkov, D.
    Kluzniak, W.
    Kneiske, T.
    Kolitzus, D.
    Komin, Nu.
    Kosack, K.
    Krakau, S.
    Krayzel, F.
    Krueger, P. P.
    Laffon, H.
    Lamanna, G.
    Lefaucheur, J.
    Lemiere, A.
    Lemoine-Goumard, M.
    Lenain, J. -P
    Lennarz, D.
    Lohse, T.
    Lopatin, A.
    Lu, C. -C
    Marandon, V.
    Marcowith, A.
    Marx, R.
    Maurin, G.
    Maxted, N.
    Mayer, M.
    McComb, T. J. L.
    Mehault, J.
    Meintjes, P. J.
    Menzler, U.
    Meyer, M.
    Moderski, R.
    Mohamed, M.
    Moulin, E.
    Murach, T.
    Naumann, C. L.
    de Naurois, M.
    Niemiec, J.
    Nolan, S. J.
    Oakes, L.
    Ohm, S.
    Wilhelmi, E. de Ona
    Opitz, B.
    Ostrowski, M.
    Oya, I.
    Panter, M.
    Parsons, R. D.
    Arribas, M. Paz
    Pekeur, N. W.
    Pelletier, G.
    Perez, J.
    Petrucci, P. -O
    Peyaud, B.
    Pita, S.
    Poon, H.
    Puehlhofer, G.
    Punch, Michael
    Université Paris Diderot, France.
    Quirrenbach, A.
    Raab, S.
    Raue, M.
    Reimer, A.
    Reimer, O.
    Renaud, M.
    de los Reyes, R.
    Rieger, F.
    Rob, L.
    Romoli, C.
    Rosier-Lees, S.
    Rowell, G.
    Rudak, B.
    Rulten, C. B.
    Sahakian, V.
    Sanchez, D. A.
    Santangelo, A.
    Schlickeiser, R.
    Schuessler, F.
    Schulz, A.
    Schwanke, U.
    Schwarzburg, S.
    Schwemmer, S.
    Sol, H.
    Spengler, G.
    Spies, F.
    Stawarz, L.
    Steenkamp, R.
    Stegmann, C.
    Stinzing, F.
    Stycz, K.
    Sushch, I.
    Szostek, A.
    Tavernet, J. -P
    Tavernier, T.
    Taylor, A. M.
    Terrier, R.
    Tluczykont, M.
    Trichard, C.
    Valerius, K.
    van Eldik, C.
    van Soelen, B.
    Vasileiadis, G.
    Venter, C.
    Viana, A.
    Vincent, P.
    Vink, J.
    Voelk, H. J.
    Volpe, F.
    Vorster, M.
    Vuillaume, T.
    Wagner, S. J.
    Wagner, P.
    Ward, M.
    Weidinger, M.
    Weitzel, Q.
    White, R.
    Wierzcholska, A.
    Willmann, P.
    Woernlein, A.
    Wouters, D.
    Zabalza, V.
    Zacharias, M.
    Zajczyk, A.
    Zdziarski, A. A.
    Zech, A.
    Zechlin, H. -S
    HESS J1640-465-an exceptionally luminous TeV gamma-ray supernova remnant2014In: Monthly notices of the Royal Astronomical Society, ISSN 0035-8711, E-ISSN 1365-2966, Vol. 439, no 3, p. 2828-2836Article in journal (Refereed)
    Abstract [en]

    The results of follow-up observations of the TeV gamma-ray source HESS J1640-465 from 2004 to 2011 with the High Energy Stereoscopic System (HESS) are reported in this work. The spectrum is well described by an exponential cut-off power law with photon index Gamma = 2.11 +/- 0.09(stat) +/- 0.10(sys), and a cut-off energy of E-2 = 6.0(-1.2)(+2.0) TeV. The TeV emission is significantly extended and overlaps with the northwestern part of the shell of the SNR G338.3-0.0. The new HESS results, a re-analysis of archival XMM-Newton data and multiwavelength observations suggest that a significant part of the gamma-ray emission from HESS J1640-465 originates in the supernova remnant shell. In a hadronic scenario, as suggested by the smooth connection of the GeV and TeV spectra, the product of total proton energy and mean target density could be as high as W(p)n(H) similar to 4 x 10(52)(d/10kpc)(2) erg cm(-3).

  • 159.
    Abramowski, A.
    et al.
    Univ Hamburg, Germany.
    Aharonian, F.
    Max Planck Inst Kernphys,Germany ; Dublin Inst Adv Studies, Ireland ; Natl Acad Sci Republ Armenia, Armenia.
    Benkhali, F. Ait
    Max Planck Inst Kernphys,Germany.
    Akhperjanian, A. G.
    Natl Acad Sci Republ Armenia, Armenia ; Yerevan Phys Inst, Armenia.
    Angüner, E. O.
    Humboldt Univ, Germany.
    Anton, G.
    Univ Erlangen Nurnberg, Germany.
    Backes, M.
    Univ Namibia, Namibia.
    Balenderans, S.
    Univ Durham, UK.
    Balzer, A.
    DESY, Germany ; Univ Potsdam, Germany .
    Barnacka, A.
    Nicolaus Copernicus Astron Ctr, Poland.
    Becherini, Yvonne
    Linnaeus University, Faculty of Technology, Department of Physics and Electrical Engineering.
    Tjus, J. Becker
    Bernloehr, K.
    Birsin, E.
    Bissaldi, E.
    Biteau, J.
    Boettcher, M.
    Boisson, C.
    Bolmont, J.
    Bordas, P.
    Brucker, J.
    Brun, F.
    Brun, P.
    Bulik, T.
    Carrigan, S.
    Casanova, S.
    Chadwick, P. M.
    Chalme-Calvet, R.
    Chaves, R. C. G.
    Cheesebrough, A.
    Chretien, M.
    Colafrancesco, S.
    Cologna, G.
    Conrad, J.
    Couturier, C.
    Cui, Y.
    Dalton, M.
    Daniel, M. K.
    Davids, I. D.
    Degrange, B.
    Deil, C.
    deWilt, P.
    Dickinson, H. J.
    Djannati-Atai, A.
    Domainko, W.
    Drury, L. O 'C.
    Dubus, G.
    Dutson, K.
    Dyks, J.
    Dyrda, M.
    Edwards, T.
    Egberts, K.
    Eger, P.
    Espigat, P.
    Farnier, C.
    Fegan, S.
    Feinstein, F.
    Fernandes, M. V.
    Fernandez, D.
    Fiasson, A.
    Fontaine, G.
    Foerster, A.
    Fuessling, M.
    Gajdus, M.
    Gallant, Y. A.
    Garrigoux, T.
    Giavitto, G.
    Giebels, B.
    Glicenstein, J. F.
    Grondin, M. -H
    Grudzinska, M.
    Haeffner, S.
    Hahn, J.
    Harris, J.
    Heinzelmann, G.
    Henri, G.
    Hermann, G.
    Hervet, O.
    Hillert, A.
    Hinton, J. A.
    Hofmann, W.
    Hofverberg, P.
    Holler, M.
    Horns, D.
    Jacholkowska, A.
    Jahn, C.
    Jamrozy, M.
    Janiak, M.
    Jankowsky, F.
    Jung, I.
    Kastendieck, M. A.
    Katarzynski, K.
    Katz, U.
    Kaufmann, S.
    Khelifi, B.
    Kieffer, M.
    Klepser, S.
    Klochkov, D.
    Kluzniak, W.
    Kneiske, T.
    Kolitzus, D.
    Komin, Nu.
    Kosack, K.
    Krakau, S.
    Krayzel, F.
    Krueger, P. P.
    Laffon, H.
    Lamanna, G.
    Lefaucheur, J.
    Lemiere, A.
    Lemoine-Goumard, M.
    Lenain, J. -P
    Lohse, T.
    Lopatin, A.
    Lu, C. -C
    Marandon, V.
    Marcowith, A.
    Marx, R.
    Maurin, G.
    Maxted, N.
    Mayer, M.
    McComb, T. J. L.
    Mehault, J.
    Meintjes, P. J.
    Menzler, U.
    Meyer, M.
    Moderski, R.
    Mohamed, M.
    Moulin, E.
    Murach, T.
    Naumann, C. L.
    de Naurois, M.
    Niemiec, J.
    Nolan, S. J.
    Oakes, L.
    Odaka, H.
    Ohm, S.
    Wilhelmi, E. de Ona
    Opitz, B.
    Ostrowski, M.
    Oya, I.
    Panter, M.
    Parsons, R. D.
    Arribas, M. Paz
    Pekeur, N. W.
    Pelletier, G.
    Perez, J.
    Petrucci, P. -O
    Peyaud, B.
    Pita, S.
    Poon, H.
    Puehlhofer, G.
    Punch, Michael
    Univ Paris Diderot, APC, AstroParticule & Cosmology, CNRS,IN2P3,CEA,Irfu, Observ Paris,Sorbonne Paris C, 10 Rue Alice Domon & Leonie Duquet, F-75205 Paris 13, France.
    Quirrenbach, A.
    Raab, S.
    Raue, M.
    Reichardt, I.
    Reimer, A.
    Reimer, O.
    Renaud, M.
    Reyes, R. de los
    Rieger, F.
    Rob, L.
    Romoli, C.
    Rosier-Lees, S.
    Rowell, G.
    Rudak, B.
    Rulten, C. B.
    Sahakian, V.
    Sanchez, D. A.
    Santangelo, A.
    Schlickeiser, R.
    Schuessler, F.
    Schulz, A.
    Schwanke, U.
    Schwarzburg, S.
    Schwemmer, S.
    Sol, H.
    Spengler, G.
    Spies, F.
    Stawarz, L.
    Steenkamp, R.
    Stegmann, C.
    Stinzing, F.
    Stycz, K.
    Sushch, I.
    Tavernet, J. -P
    Tavernier, T.
    Taylor, A. M.
    Terrier, R.
    Tluczykont, M.
    Trichard, C.
    Valerius, K.
    van Eldik, C.
    van Soelen, B.
    Vasileiadis, G.
    Venter, C.
    Viana, A.
    Vincent, P.
    Voelk, H. J.
    Volpe, F.
    Vorster, M.
    Vuillaume, T.
    Wagner, S. J.
    Wagner, P.
    Wagner, R. M.
    Ward, M.
    Weidinger, M.
    Weitzel, Q.
    White, R.
    Wierzcholska, A.
    Willmann, P.
    Woernlein, A.
    Wouters, D.
    Yang, R.
    Zabalza, V.
    Zacharias, M.
    Zdziarski, A. A.
    Zech, A.
    Zechlin, H. -S
    Acero, F.
    Casandjian, J. M.
    Cohen-Tanugi, J.
    Giordano, F.
    Guillemot, L.
    Lande, J.
    Pletsch, H.
    Uchiyama, Y.
    Probing the gamma-ray emission from HESS J1834-087 using HESS and Fermi LAT observations2015In: Astronomy and Astrophysics, ISSN 0004-6361, E-ISSN 1432-0746, Vol. 574, article id A27Article in journal (Refereed)
    Abstract [en]

    Aims. Previous observations with the High Energy Stereoscopic System (H.E.S.S.) have revealed an extended very-high-energy (VHE; E > 100 GeV) gamma-ray source, HESS J1834-087, coincident with the supernova remnant (SNR) W41. The origin of the gamma-ray emission was investigated in more detail with the H.E.S.S. array and the Large Area Telescope (LAT) onboard the Fermi Gamma-ray Space Telescope. Methods. The gamma-ray data provided by 61 h of observations with H.E.S.S., and four years with the Fermi LAT were analyzed, covering over five decades in energy from 1.8 GeV up to 30 TeV. The morphology and spectrum of the TeV and GeV sources were studied and multiwavelength data were used to investigate the origin of the gamma-ray emission toward W41. Results. The TeV source can be modeled with a sum of two components: one point-like and one significantly extended (sigma(TeV) = 0.17 degrees +/- 0.01 degrees), both centered on SNR W41 and exhibiting spectra described by a power law with index Gamma(TeV) similar or equal to 2.6. The GeV source detected with Fermi LAT is extended (sigma(GeV) = 0.15 degrees +/- 0.03 degrees) and morphologically matches the VHE emission. Its spectrum can be described by a power-law model with an index Gamma(GeV) = 2.15 +/- 0.12 and smoothly joins the spectrum of the whole TeV source. A break appears in the gamma-ray spectra around 100 GeV. No pulsations were found in the GeV range. Conclusions. Two main scenarios are proposed to explain the observed emission: a pulsar wind nebula (PWN) or the interaction of SNR W41 with an associated molecular cloud. X-ray observations suggest the presence of a point-like source (a pulsar candidate) near the center of the remnant and nonthermal X-ray diffuse emission that could arise from the possibly associated PWN. The PWN scenario is supported by the compatible positions of the TeV and GeV sources with the putative pulsar. However, the spectral energy distribution from radio to gamma-rays is reproduced by a one-zone leptonic model only if an excess of low-energy electrons is injected following a Maxwellian distribution by a pulsar with a high spin-down power (> 10(37) erg s(-1)). This additional low-energy component is not needed if we consider that the point-like TeV source is unrelated to the extended GeV and TeV sources. The interacting SNR scenario is supported by the spatial coincidence between the gamma-ray sources, the detection of OH (1720 MHz) maser lines, and the hadronic modeling.

  • 160.
    Abramowski, A.
    et al.
    Univ Hamburg, Germany.
    Aharonian, F.
    Max Planck Inst Kernphys,Germany ; Dublin Inst Adv Studies, Ireland ; Natl Acad Sci Republ Armenia, Armenia.
    Benkhali, F. Ait
    Max Planck Inst Kernphys,Germany.
    Akhperjanian, A. G.
    Natl Acad Sci Republ Armenia, Armenia ; Yerevan Phys Inst, Armenia.
    Angüner, E. O.
    Humboldt Univ, Germany.
    Backes, M.
    Univ Namibia, Namibia.
    Balenderans, S.
    Univ Durham, UK.
    Balzer, A.
    Univ Amsterdam, Netherlands.
    Barnacka, A.
    Uniwersytet Jagiellonski, Poland.
    Becherini, Yvonne
    Linnaeus University, Faculty of Technology, Department of Physics and Electrical Engineering.
    Tjus, J. Becker
    Berge, D.
    Bernhard, S.
    Bernloehr, K.
    Birsin, E.
    Biteau, J.
    Boettcher, M.
    Boisson, C.
    Bolmont, J.
    Bordas, P.
    Bregeon, J.
    Brun, F.
    Brun, P.
    Bryan, M.
    Bulik, T.
    Carrigan, S.
    Casanova, S.
    Chadwick, P. M.
    Chakraborty, N.
    Chalme-Calvet, R.
    Chaves, R. C. G.
    Chretien, M.
    Colafrancesco, S.
    Cologna, G.
    Conrad, J.
    Couturier, C.
    Cui, Y.
    Davids, I. D.
    Degrange, B.
    Deil, C.
    deWilt, P.
    Djannati-Atai, A.
    Domainko, W.
    Donath, A.
    Drury, L. O 'C.
    Dubus, G.
    Dutson, K.
    Dyks, J.
    Dyrda, M.
    Edwards, T.
    Egberts, K.
    Eger, P.
    Espigat, P.
    Farnier, C.
    Fegan, S.
    Feinstein, F.
    Fernandes, M. V.
    Fernandez, D.
    Fiasson, A.
    Fontaine, G.
    Foerster, A.
    Fuessling, M.
    Gabici, S.
    Gajdus, M.
    Gallant, Y. A.
    Garrigoux, T.
    Giavitto, G.
    Giebels, B.
    Glicenstein, J. F.
    Gottschall, D.
    Grondin, M. -H
    Grudzinska, M.
    Hadasch, D.
    Haeffner, S.
    Hahn, J.
    Harris, J.
    Heinzelmann, G.
    Henri, G.
    Hermann, G.
    Hervet, O.
    Hillert, A.
    Hinton, J. A.
    Hofmann, W.
    Hofverberg, P.
    Holler, M.
    Horns, D.
    Ivascenko, A.
    Jacholkowska, A.
    Jahn, C.
    Jamrozy, M.
    Janiak, M.
    Jankowsky, F.
    Jung-Richardt, I.
    Kastendieck, M. A.
    Katarzynski, K.
    Katz, U.
    Kaufmann, S.
    Khelifi, B.
    Kieffer, M.
    Klepser, S.
    Klochkov, D.
    Kluzniak, W.
    Kolitzus, D.
    Komin, Nu
    Kosack, K.
    Krakau, S.
    Krayzel, F.
    Krueger, P. P.
    Laffon, H.
    Lamanna, G.
    Lefaucheur, J.
    Lefranc, V.
    Lemiere, A.
    Lemoine-Goumard, M.
    Lenain, J. -P
    Lohse, T.
    Lopatin, A.
    Lu, C. -C
    Marandon, V.
    Marcowith, A.
    Marx, R.
    Maurin, G.
    Maxted, N.
    Mayer, M.
    McComb, T. J. L.
    Mehault, J.
    Meintjes, P. J.
    Menzler, U.
    Meyer, M.
    Mitchell, A. M. W.
    Moderski, R.
    Mohamed, M.
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    Murach, T.
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    Pelletier, G.
    Petrucci, P. -O
    Peyaud, B.
    Pita, S.
    Poon, H.
    Puehlhofer, G.
    Punch, Michael
    Univ Paris Diderot, APC, AstroParticule & Cosmology, CNRS,IN2P3,CEA,Irfu, Observ Paris,Sorbonne Paris C, 10 Rue Alice Domon & Leonie Duquet, F-75205 Paris 13, France.
    Quirrenbach, A.
    Raab, S.
    Reichardt, I.
    Reimer, A.
    Reimer, O.
    Renaud, M.
    de los Reyes, R.
    Rieger, F.
    Romoli, C.
    Rosier-Lees, S.
    Rowell, G.
    Rudak, B.
    Rulten, C. B.
    Sahakian, V.
    Salek, D.
    Sanchez, D. A.
    Santangelo, A.
    Schlickeiser, R.
    Schuessler, F.
    Schulz, A.
    Schwanke, U.
    Schwarzburg, S.
    Schwemmer, S.
    Sol, H.
    Spanier, F.
    Spengler, G.
    Spies, F.
    Stawarz, L.
    Steenkamp, R.
    Stegmann, C.
    Stinzing, F.
    Stycz, K.
    Sushch, I.
    Tavernet, J. -P
    Tavernier, T.
    Taylor, A. M.
    Terrier, R.
    Tluczykont, M.
    Trichard, C.
    Valerius, K.
    van Eldik, C.
    van Soelen, B.
    Vasileiadis, G.
    Veh, J.
    Venter, C.
    Viana, A.
    Vincent, P.
    Vink, J.
    Voelk, H. J.
    Volpe, F.
    Vorster, M.
    Vuillaume, T.
    Wagner, S. J.
    Wagner, P.
    Wagner, R. M.
    Ward, M.
    Weidinger, M.
    Weitzel, Q.
    White, R.
    Wierzcholska, A.
    Willmann, P.
    Woernlein, A.
    Wouters, D.
    Yang, R.
    Zabalza, V.
    Zaborov, D.
    Zacharias, M.
    Zdziarski, A. A.
    Zech, A.
    Zechlin, H. -S
    Constraints on an Annihilation Signal from a Core of Constant Dark Matter Density around the Milky Way Center with HESS2015In: Physical Review Letters, ISSN 0031-9007, E-ISSN 1079-7114, Vol. 114, no 8, article id 081301Article in journal (Refereed)
    Abstract [en]

    An annihilation signal of dark matter is searched for from the central region of the Milky Way. Data acquired in dedicated on-off observations of the Galactic center region with H.E.S.S. are analyzed for this purpose. No significant signal is found in a total of similar to 9 h of on-off observations. Upper limits on the velocity averaged cross section, <sigma upsilon >, for the annihilation of dark matter particles with masses in the range of similar to 300 GeV to similar to 10 TeV are derived. In contrast to previous constraints derived from observations of the Galactic center region, the constraints that are derived here apply also under the assumption of a central core of constant dark matter density around the center of the Galaxy. Values of <sigma upsilon > that are larger than 3 x 10(-24) cm(3)/s are excluded for dark matter particles with masses between similar to 1 and similar to 4 TeV at 95% C.L. if the radius of the central dark matter density core does not exceed 500 pc. This is the strongest constraint that is derived on <sigma upsilon > for annihilating TeV mass dark matter without the assumption of a centrally cusped dark matter density distribution in the search region.

  • 161.
    Abramowski, A.
    et al.
    University of Hamburg, Germany.
    Aharonian, F.
    Max Planck Institute for Nuclear Physics, Germany ; Dublin Institute for Advanced Studies, Ireland ; National Academy of Sciences of the Republic of Armenia, Armenia.
    Benkhali, F. Ait
    Max Planck Institute for Nuclear Physics, Germany.
    Akhperjanian, A. G.
    Yerevan Physics Institute, Armenia ; National Academy of Sciences of the Republic of Armenia, Armenia.
    Angüner, E. O.
    Humboldt University of Berlin, Germany.
    Backes, M.
    University of Namibia, Namibia.
    Balzer, A.
    University of Amsterdam, Netherlands.
    Becherini, Yvonne
    Linnaeus University, Faculty of Technology, Department of Physics and Electrical Engineering.
    Tjus, J. Becker
    Ruhr University Bochum, Germany.
    Berge, D.
    University of Amsterdam, Netherlands.
    Bernhard, S.
    Leopold Franzens Univ Innsbruck, Inst Astro & Teilchenphys, A-6020 Innsbruck, Austria..
    Bernloehr, K.
    Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany..
    Birsin, E.
    Humboldt Univ, Inst Phys, Newtonstr 15, D-12489 Berlin, Germany..
    Blackwell, R.
    Univ Adelaide, Sch Chem & Phys, Adelaide, SA 5005, Australia..
    Boettcher, M.
    North West Univ, Ctr Space Res, ZA-2520 Potchefstroom, South Africa..
    Boisson, C.
    Univ Paris Diderot, CNRS, Observ Paris, LUTH, 5 Pl Jules Janssen, F-92190 Meudon, France..
    Bolmont, J.
    Univ Pierre & Marie Curie Paris 6, Univ Denis Diderot Paris 7, CNRS, IN2P3,LPNHE, 4 Pl Jussieu, F-75252 Paris 5, France..
    Bordas, P.
    Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany..
    Bregeon, J.
    Univ Montpellier 2, CNRS, IN2P3, Lab Universe & Particules Montpellier, CC 72,Pl Eugene Bataillon, F-34095 Montpellier 5, France..
    Brun, F.
    CEA Saclay, DSM Irfu, F-91191 Gif Sur Yvette, France..
    Brun, P.
    CEA Saclay, DSM Irfu, F-91191 Gif Sur Yvette, France..
    Bryan, M.
    Univ Amsterdam, Astron Inst Anton Pannekoek, GRAPPA, Sci Pk 904, NL-1098 XH Amsterdam, Netherlands..
    Bulik, T.
    Univ Warsaw, Astron Observ, Al Ujazdowskie 4, PL-00478 Warsaw, Poland..
    Carr, J.
    Aix Marseille Univ, CNRS, IN2P3, CPPM UMR 7346, F-13288 Marseille, France..
    Casanova, S.
    Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany.;PAN, Inst Fizyki Jadrowej, Ul Radzikowskiego 152, PL-31342 Krakow, Poland..
    Chakraborty, N.
    Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany..
    Chalme-Calvet, R.
    Univ Pierre & Marie Curie Paris 6, Univ Denis Diderot Paris 7, CNRS, IN2P3,LPNHE, 4 Pl Jussieu, F-75252 Paris 5, France..
    Chaves, R. C. G.
    Univ Montpellier 2, CNRS, IN2P3, Lab Universe & Particules Montpellier, CC 72,Pl Eugene Bataillon, F-34095 Montpellier 5, France..
    Chen, A.
    Univ Witwatersrand, Sch Phys, 1 Jan Smuts Ave, ZA-2050 Johannesburg, South Africa..
    Chevalier, J.
    Univ Savoie Mt Blanc, CNRS, IN2P3, Lab Annecy Le Vieux Phys Particules, F-74941 Annecy Le Vieux, France..
    Chretien, M.
    Univ Pierre & Marie Curie Paris 6, Univ Denis Diderot Paris 7, CNRS, IN2P3,LPNHE, 4 Pl Jussieu, F-75252 Paris 5, France..
    Colafrancesco, S.
    Univ Witwatersrand, Sch Phys, 1 Jan Smuts Ave, ZA-2050 Johannesburg, South Africa..
    Cologna, G.
    Heidelberg Univ, Landessternwarte, D-69117 Heidelberg, Germany..
    Condon, B.
    Univ Bordeaux, CNRS, IN2P3, Ctr Etud Nucl Bordeaux Gradignan, F-33175 Gradignan, France..
    Conrad, J.
    Stockholm Univ, Albanova Univ Ctr, Oskar Klein Ctr, Dept Phys, S-10691 Stockholm, Sweden..
    Couturier, C.
    Univ Pierre & Marie Curie Paris 6, Univ Denis Diderot Paris 7, CNRS, IN2P3,LPNHE, 4 Pl Jussieu, F-75252 Paris 5, France..
    Cui, Y.
    Univ Tubingen, Inst Astron & Astrophys, Sand 1, D-72076 Tubingen, Germany..
    Davids, I. D.
    Univ Namibia, Dept Phys, Private Bag 13301, Windhoek, Namibia.;North West Univ, Ctr Space Res, ZA-2520 Potchefstroom, South Africa..
    Degrange, B.
    Ecole Polytech, CNRS, IN2P3, Lab Leprince Ringuet, F-91128 Palaiseau, France..
    Deil, C.
    Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany..
    deWilt, P.
    Univ Adelaide, Sch Chem & Phys, Adelaide, SA 5005, Australia..
    Djannati-Atai, A.
    Univ Paris Diderot, CNRS, IN2P3, CEA Irfu,Observ Paris,Sorbonne Paris Cite,APC,Ast, 10 Rue Alice Domon & Leonie Duquet, F-75205 Paris 13, France..
    Domainko, W.
    Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany..
    Donath, A.
    Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany..
    Drury, L. O 'C.
    Dubus, G.
    Univ Grenoble Alpes, IPAG, F-38000 Grenoble, France.;CNRS, IPAG, F-38000 Grenoble, France..
    Dutson, K.
    Univ Leicester, Dept Phys & Astron, Univ Rd, Leicester LE1 7RH, Leics, England..
    Dyks, J.
    Nicolaus Copernicus Astron Ctr, Ul Bartycka 18, PL-00716 Warsaw, Poland..
    Dyrda, M.
    PAN, Inst Fizyki Jadrowej, Ul Radzikowskiego 152, PL-31342 Krakow, Poland..
    Edwards, T.
    Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany..
    Egberts, K.
    Univ Potsdam, Inst Phys & Astron, Karl Liebknecht Str 24-25, D-14476 Potsdam, Germany..
    Eger, P.
    Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany..
    Ernenwein, J. -P
    Espigat, P.
    Univ Paris Diderot, CNRS, IN2P3, CEA Irfu,Observ Paris,Sorbonne Paris Cite,APC,Ast, 10 Rue Alice Domon & Leonie Duquet, F-75205 Paris 13, France..
    Farnier, C.
    Stockholm Univ, Albanova Univ Ctr, Oskar Klein Ctr, Dept Phys, S-10691 Stockholm, Sweden..
    Fegan, S.
    Ecole Polytech, CNRS, IN2P3, Lab Leprince Ringuet, F-91128 Palaiseau, France..
    Feinstein, F.
    Univ Montpellier 2, CNRS, IN2P3, Lab Universe & Particules Montpellier, CC 72,Pl Eugene Bataillon, F-34095 Montpellier 5, France..
    Fernandes, M. V.
    Univ Hamburg, Inst Expt Phys, Luruper Chaussee 149, D-22761 Hamburg, Germany..
    Fernandez, D.
    Univ Montpellier 2, CNRS, IN2P3, Lab Universe & Particules Montpellier, CC 72,Pl Eugene Bataillon, F-34095 Montpellier 5, France..
    Fiasson, A.
    Univ Savoie Mt Blanc, CNRS, IN2P3, Lab Annecy Le Vieux Phys Particules, F-74941 Annecy Le Vieux, France..
    Fontaine, G.
    Ecole Polytech, CNRS, IN2P3, Lab Leprince Ringuet, F-91128 Palaiseau, France..
    Foerster, A.
    Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany..
    Fuessling, M.
    DESY, D-15738 Zeuthen, Germany..
    Gabici, S.
    Univ Paris Diderot, CNRS, IN2P3, CEA Irfu,Observ Paris,Sorbonne Paris Cite,APC,Ast, 10 Rue Alice Domon & Leonie Duquet, F-75205 Paris 13, France..
    Gajdus, M.
    Humboldt Univ, Inst Phys, Newtonstr 15, D-12489 Berlin, Germany..
    Gallant, Y. A.
    Univ Montpellier 2, CNRS, IN2P3, Lab Universe & Particules Montpellier, CC 72,Pl Eugene Bataillon, F-34095 Montpellier 5, France..
    Garrigoux, T.
    Univ Pierre & Marie Curie Paris 6, Univ Denis Diderot Paris 7, CNRS, IN2P3,LPNHE, 4 Pl Jussieu, F-75252 Paris 5, France..
    Giavitto, G.
    DESY, D-15738 Zeuthen, Germany..
    Giebels, B.
    Ecole Polytech, CNRS, IN2P3, Lab Leprince Ringuet, F-91128 Palaiseau, France..
    Glicenstein, J. F.
    CEA Saclay, DSM Irfu, F-91191 Gif Sur Yvette, France..
    Gottschall, D.
    Univ Tubingen, Inst Astron & Astrophys, Sand 1, D-72076 Tubingen, Germany..
    Goyal, A.
    Uniwersytet Jagiellonski, Obserwatorium Astron, Ul Orla 171, PL-30244 Krakow, Poland..
    Grondin, M. -H
    Grudzinska, M.
    Univ Warsaw, Astron Observ, Al Ujazdowskie 4, PL-00478 Warsaw, Poland..
    Hadasch, D.
    Leopold Franzens Univ Innsbruck, Inst Astro & Teilchenphys, A-6020 Innsbruck, Austria..
    Haeffner, S.
    Univ Erlangen Nurnberg, Phys Inst, Erwin Rommel Str 1, D-91058 Erlangen, Germany..
    Hahn, J.
    Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany..
    Hawkes, J.
    Univ Adelaide, Sch Chem & Phys, Adelaide, SA 5005, Australia..
    Heinzelmann, G.
    Univ Hamburg, Inst Expt Phys, Luruper Chaussee 149, D-22761 Hamburg, Germany..
    Henri, G.
    Univ Grenoble Alpes, IPAG, F-38000 Grenoble, France.;CNRS, IPAG, F-38000 Grenoble, France..
    Hermann, G.
    Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany..
    Hervet, O.
    Univ Paris Diderot, CNRS, Observ Paris, LUTH, 5 Pl Jules Janssen, F-92190 Meudon, France..
    Hillert, A.
    Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany..
    Hinton, J. A.
    Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany.;Univ Leicester, Dept Phys & Astron, Univ Rd, Leicester LE1 7RH, Leics, England..
    Hofmann, W.
    Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany..
    Hofverberg, P.
    Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany..
    Hoischen, C.
    Univ Potsdam, Inst Phys & Astron, Karl Liebknecht Str 24-25, D-14476 Potsdam, Germany..
    Holler, M.
    Ecole Polytech, CNRS, IN2P3, Lab Leprince Ringuet, F-91128 Palaiseau, France..
    Horns, D.
    Univ Hamburg, Inst Expt Phys, Luruper Chaussee 149, D-22761 Hamburg, Germany..
    Ivascenko, A.
    North West Univ, Ctr Space Res, ZA-2520 Potchefstroom, South Africa..
    Jacholkowska, A.
    Univ Pierre & Marie Curie Paris 6, Univ Denis Diderot Paris 7, CNRS, IN2P3,LPNHE, 4 Pl Jussieu, F-75252 Paris 5, France..
    Jamrozy, M.
    Uniwersytet Jagiellonski, Obserwatorium Astron, Ul Orla 171, PL-30244 Krakow, Poland..
    Janiak, M.
    Nicolaus Copernicus Astron Ctr, Ul Bartycka 18, PL-00716 Warsaw, Poland..
    Jankowsky, F.
    Heidelberg Univ, Landessternwarte, D-69117 Heidelberg, Germany..
    Jung-Richardt, I.
    Univ Erlangen Nurnberg, Phys Inst, Erwin Rommel Str 1, D-91058 Erlangen, Germany..
    Kastendieck, M. A.
    Univ Hamburg, Inst Expt Phys, Luruper Chaussee 149, D-22761 Hamburg, Germany..
    Katarzynski, K.
    Nicolaus Copernicus Univ, Fac Phys Astron & Informat, Ctr Astron, Grudziadzka 5, PL-87100 Torun, Poland..
    Katz, U.
    Univ Erlangen Nurnberg, Phys Inst, Erwin Rommel Str 1, D-91058 Erlangen, Germany..
    Kerszberg, D.
    Univ Pierre & Marie Curie Paris 6, Univ Denis Diderot Paris 7, CNRS, IN2P3,LPNHE, 4 Pl Jussieu, F-75252 Paris 5, France..
    Khelifi, B.
    Univ Paris Diderot, CNRS, IN2P3, CEA Irfu,Observ Paris,Sorbonne Paris Cite,APC,Ast, 10 Rue Alice Domon & Leonie Duquet, F-75205 Paris 13, France..
    Kieffer, M.
    Univ Pierre & Marie Curie Paris 6, Univ Denis Diderot Paris 7, CNRS, IN2P3,LPNHE, 4 Pl Jussieu, F-75252 Paris 5, France..
    Klepser, S.
    DESY, D-15738 Zeuthen, Germany..
    Klochkov, D.
    Univ Tubingen, Inst Astron & Astrophys, Sand 1, D-72076 Tubingen, Germany..
    Kluzniak, W.
    Nicolaus Copernicus Astron Ctr, Ul Bartycka 18, PL-00716 Warsaw, Poland..
    Kolitzus, D.
    Leopold Franzens Univ Innsbruck, Inst Astro & Teilchenphys, A-6020 Innsbruck, Austria..
    Komin, Nu.
    Univ Witwatersrand, Sch Phys, 1 Jan Smuts Ave, ZA-2050 Johannesburg, South Africa..
    Kosack, K.
    CEA Saclay, DSM Irfu, F-91191 Gif Sur Yvette, France..
    Krakau, S.
    Ruhr Univ Bochum, Inst Theoret Phys, Lehrstuhl Weltraum & Astrophys 4, D-44780 Bochum, Germany..
    Krayzel, F.
    Univ Savoie Mt Blanc, CNRS, IN2P3, Lab Annecy Le Vieux Phys Particules, F-74941 Annecy Le Vieux, France..
    Krueger, P. P.
    North West Univ, Ctr Space Res, ZA-2520 Potchefstroom, South Africa..
    Laffon, H.
    Univ Bordeaux, CNRS, IN2P3, Ctr Etud Nucl Bordeaux Gradignan, F-33175 Gradignan, France..
    Lamanna, G.
    Univ Savoie Mt Blanc, CNRS, IN2P3, Lab Annecy Le Vieux Phys Particules, F-74941 Annecy Le Vieux, France..
    Lau, J.
    Univ Adelaide, Sch Chem & Phys, Adelaide, SA 5005, Australia..
    Lefaucheur, J.
    Univ Paris Diderot, CNRS, IN2P3, CEA Irfu,Observ Paris,Sorbonne Paris Cite,APC,Ast, 10 Rue Alice Domon & Leonie Duquet, F-75205 Paris 13, France..
    Lefranc, V.
    CEA Saclay, DSM Irfu, F-91191 Gif Sur Yvette, France..
    Lemiere, A.
    Univ Paris Diderot, CNRS, IN2P3, CEA Irfu,Observ Paris,Sorbonne Paris Cite,APC,Ast, 10 Rue Alice Domon & Leonie Duquet, F-75205 Paris 13, France..
    Lemoine-Goumard, M.
    Univ Bordeaux, CNRS, IN2P3, Ctr Etud Nucl Bordeaux Gradignan, F-33175 Gradignan, France..
    Lenain, J. -P
    Lohse, T.
    Humboldt Univ, Inst Phys, Newtonstr 15, D-12489 Berlin, Germany..
    Lopatin, A.
    Univ Erlangen Nurnberg, Phys Inst, Erwin Rommel Str 1, D-91058 Erlangen, Germany..
    Lorentz, M.
    CEA Saclay, DSM Irfu, F-91191 Gif Sur Yvette, France..
    Lu, C. -C
    Lui, R.
    Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany..
    Marandon, V.
    Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany..
    Marcowith, A.
    Univ Montpellier 2, CNRS, IN2P3, Lab Universe & Particules Montpellier, CC 72,Pl Eugene Bataillon, F-34095 Montpellier 5, France..
    Mariaud, C.
    Ecole Polytech, CNRS, IN2P3, Lab Leprince Ringuet, F-91128 Palaiseau, France..
    Marx, R.
    Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany..
    Maurin, G.
    Univ Savoie Mt Blanc, CNRS, IN2P3, Lab Annecy Le Vieux Phys Particules, F-74941 Annecy Le Vieux, France..
    Maxted, N.
    Univ Montpellier 2, CNRS, IN2P3, Lab Universe & Particules Montpellier, CC 72,Pl Eugene Bataillon, F-34095 Montpellier 5, France..
    Mayer, M.
    Humboldt Univ, Inst Phys, Newtonstr 15, D-12489 Berlin, Germany..
    Meintjes, P. J.
    Univ Free State, Dept Phys, POB 339, ZA-9300 Bloemfontein, South Africa..
    Menzler, U.
    Ruhr Univ Bochum, Inst Theoret Phys, Lehrstuhl Weltraum & Astrophys 4, D-44780 Bochum, Germany..
    Meyer, M.
    Stockholm Univ, Albanova Univ Ctr, Oskar Klein Ctr, Dept Phys, S-10691 Stockholm, Sweden..
    Mitchell, A. M. W.
    Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany..
    Moderski, R.
    Nicolaus Copernicus Astron Ctr, Ul Bartycka 18, PL-00716 Warsaw, Poland..
    Mohamed, M.
    Heidelberg Univ, Landessternwarte, D-69117 Heidelberg, Germany..
    Mora, K.
    Stockholm Univ, Albanova Univ Ctr, Oskar Klein Ctr, Dept Phys, S-10691 Stockholm, Sweden..
    Moulin, E.
    CEA Saclay, DSM Irfu, F-91191 Gif Sur Yvette, France..
    Murach, T.
    Humboldt Univ, Inst Phys, Newtonstr 15, D-12489 Berlin, Germany..
    de Naurois, M.
    Ecole Polytech, CNRS, IN2P3, Lab Leprince Ringuet, F-91128 Palaiseau, France..
    Niemiec, J.
    PAN, Inst Fizyki Jadrowej, Ul Radzikowskiego 152, PL-31342 Krakow, Poland..
    Oakes, L.
    Humboldt Univ, Inst Phys, Newtonstr 15, D-12489 Berlin, Germany..
    Odaka, H.
    Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany..
    Oettl, S.
    Leopold Franzens Univ Innsbruck, Inst Astro & Teilchenphys, A-6020 Innsbruck, Austria..
    Ohm, S.
    DESY, D-15738 Zeuthen, Germany..
    Opitz, B.
    Univ Hamburg, Inst Expt Phys, Luruper Chaussee 149, D-22761 Hamburg, Germany..
    Ostrowski, M.
    Uniwersytet Jagiellonski, Obserwatorium Astron, Ul Orla 171, PL-30244 Krakow, Poland..
    Oya, I.
    DESY, D-15738 Zeuthen, Germany..
    Panter, M.
    Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany..
    Parsons, R. D.
    Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany..
    Arribas, M. Paz
    Humboldt Univ, Inst Phys, Newtonstr 15, D-12489 Berlin, Germany..
    Pekeur, N. W.
    North West Univ, Ctr Space Res, ZA-2520 Potchefstroom, South Africa..
    Pelletier, G.
    Univ Grenoble Alpes, IPAG, F-38000 Grenoble, France.;CNRS, IPAG, F-38000 Grenoble, France..
    Petrucci, P. -O
    Peyaud, B.
    CEA Saclay, DSM Irfu, F-91191 Gif Sur Yvette, France..
    Pita, S.
    Univ Paris Diderot, CNRS, IN2P3, CEA Irfu,Observ Paris,Sorbonne Paris Cite,APC,Ast, 10 Rue Alice Domon & Leonie Duquet, F-75205 Paris 13, France..
    Poon, H.
    Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany..
    Prokhorov, Dmitry
    Linnaeus University, Faculty of Technology, Department of Physics and Electrical Engineering.
    Prokoph, Heike
    Linnaeus University, Faculty of Technology, Department of Physics and Electrical Engineering.
    Puehlhofer, G.
    Univ Tubingen, Inst Astron & Astrophys, Sand 1, D-72076 Tubingen, Germany..
    Punch, Michael
    Univ Paris Diderot, France.
    Quirrenbach, A.
    Heidelberg Univ, Landessternwarte, D-69117 Heidelberg, Germany..
    Raab, S.
    Univ Erlangen Nurnberg, Phys Inst, Erwin Rommel Str 1, D-91058 Erlangen, Germany..
    Reichardt, I.
    Univ Paris Diderot, CNRS, IN2P3, CEA Irfu,Observ Paris,Sorbonne Paris Cite,APC,Ast, 10 Rue Alice Domon & Leonie Duquet, F-75205 Paris 13, France..
    Reimer, A.
    Leopold Franzens Univ Innsbruck, Inst Astro & Teilchenphys, A-6020 Innsbruck, Austria..
    Reimer, O.
    Leopold Franzens Univ Innsbruck, Inst Astro & Teilchenphys, A-6020 Innsbruck, Austria..
    Renaud, M.
    Univ Montpellier 2, CNRS, IN2P3, Lab Universe & Particules Montpellier, CC 72,Pl Eugene Bataillon, F-34095 Montpellier 5, France..
    de los Reyes, R.
    Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany..
    Rieger, F.
    Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany.;Heidelberg Univ, ITA, DFG, D-69117 Heidelberg, Germany..
    Romoli, C.
    Dublin Inst Adv Studies, 31 Fitzwilliam Pl, Dublin 2, Ireland..
    Rosier-Lees, S.
    Univ Savoie Mt Blanc, CNRS, IN2P3, Lab Annecy Le Vieux Phys Particules, F-74941 Annecy Le Vieux, France..
    Rowell, G.
    Univ Adelaide, Sch Chem & Phys, Adelaide, SA 5005, Australia..
    Rudak, B.
    Nicolaus Copernicus Astron Ctr, Ul Bartycka 18, PL-00716 Warsaw, Poland..
    Rulten, C. B.
    Univ Paris Diderot, CNRS, Observ Paris, LUTH, 5 Pl Jules Janssen, F-92190 Meudon, France..
    Sahakian, V.
    Natl Acad Sci Republ Armenia, Marshall Baghramian Ave 24, Yerevan 0019, Armenia.;Yerevan Phys Inst, 2 Alikhanian Bros St, Yerevan 375036, Armenia..
    Salek, D.
    Univ Amsterdam, Inst High Energy Phys, GRAPPA, Sci Pk 904, NL-1098 XH Amsterdam, Netherlands..
    Sanchez, D. A.
    Univ Savoie Mt Blanc, CNRS, IN2P3, Lab Annecy Le Vieux Phys Particules, F-74941 Annecy Le Vieux, France..
    Santangelo, A.
    Univ Tubingen, Inst Astron & Astrophys, Sand 1, D-72076 Tubingen, Germany..
    Sasaki, M.
    Univ Tubingen, Inst Astron & Astrophys, Sand 1, D-72076 Tubingen, Germany..
    Schlickeiser, R.
    Ruhr Univ Bochum, Inst Theoret Phys, Lehrstuhl Weltraum & Astrophys 4, D-44780 Bochum, Germany..
    Schuessler, F.
    CEA Saclay, DSM Irfu, F-91191 Gif Sur Yvette, France..
    Schulz, A.
    DESY, D-15738 Zeuthen, Germany..
    Schwanke, U.
    Humboldt Univ, Inst Phys, Newtonstr 15, D-12489 Berlin, Germany..
    Schwemmer, S.
    Univ Savoie Mt Blanc, CNRS, IN2P3, Lab Annecy Le Vieux Phys Particules, F-74941 Annecy Le Vieux, France..
    Seyffert, A. S.
    North West Univ, Ctr Space Res, ZA-2520 Potchefstroom, South Africa..
    Simoni, R.
    Univ Amsterdam, Astron Inst Anton Pannekoek, GRAPPA, Sci Pk 904, NL-1098 XH Amsterdam, Netherlands..
    Sol, H.
    Univ Paris Diderot, CNRS, Observ Paris, LUTH, 5 Pl Jules Janssen, F-92190 Meudon, France..
    Spanier, F.
    North West Univ, Ctr Space Res, ZA-2520 Potchefstroom, South Africa..
    Spengler, G.
    Stockholm Univ, Albanova Univ Ctr, Oskar Klein Ctr, Dept Phys, S-10691 Stockholm, Sweden..
    Spies, F.
    Univ Hamburg, Inst Expt Phys, Luruper Chaussee 149, D-22761 Hamburg, Germany..
    Stawarz, L.
    Uniwersytet Jagiellonski, Obserwatorium Astron, Ul Orla 171, PL-30244 Krakow, Poland..
    Steenkamp, R.
    Univ Namibia, Dept Phys, Private Bag 13301, Windhoek, Namibia..
    Stegmann, C.
    Univ Potsdam, Inst Phys & Astron, Karl Liebknecht Str 24-25, D-14476 Potsdam, Germany.;DESY, D-15738 Zeuthen, Germany..
    Stinzing, F.
    Univ Erlangen Nurnberg, Phys Inst, Erwin Rommel Str 1, D-91058 Erlangen, Germany..
    Stycz, K.
    DESY, D-15738 Zeuthen, Germany..
    Sushch, I.
    North West Univ, Ctr Space Res, ZA-2520 Potchefstroom, South Africa..
    Tavernet, J. -P
    Tavernier, T.
    Univ Paris Diderot, CNRS, IN2P3, CEA Irfu,Observ Paris,Sorbonne Paris Cite,APC,Ast, 10 Rue Alice Domon & Leonie Duquet, F-75205 Paris 13, France..
    Taylor, A. M.
    Dublin Inst Adv Studies, 31 Fitzwilliam Pl, Dublin 2, Ireland..
    Terrier, R.
    Univ Paris Diderot, CNRS, IN2P3, CEA Irfu,Observ Paris,Sorbonne Paris Cite,APC,Ast, 10 Rue Alice Domon & Leonie Duquet, F-75205 Paris 13, France..
    Tluczykont, M.
    Univ Hamburg, Inst Expt Phys, Luruper Chaussee 149, D-22761 Hamburg, Germany..
    Trichard, C.
    Univ Savoie Mt Blanc, CNRS, IN2P3, Lab Annecy Le Vieux Phys Particules, F-74941 Annecy Le Vieux, France..
    Tuffs, R.
    Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany..
    Valerius, K.
    Univ Erlangen Nurnberg, Phys Inst, Erwin Rommel Str 1, D-91058 Erlangen, Germany..
    van der Walt, J.
    North West Univ, Ctr Space Res, ZA-2520 Potchefstroom, South Africa..
    van Eldik, C.
    Univ Erlangen Nurnberg, Phys Inst, Erwin Rommel Str 1, D-91058 Erlangen, Germany..
    van Soelen, B.
    Univ Free State, Dept Phys, POB 339, ZA-9300 Bloemfontein, South Africa..
    Vasileiadis, G.
    Univ Montpellier 2, CNRS, IN2P3, Lab Universe & Particules Montpellier, CC 72,Pl Eugene Bataillon, F-34095 Montpellier 5, France..
    Veh, J.
    Univ Erlangen Nurnberg, Phys Inst, Erwin Rommel Str 1, D-91058 Erlangen, Germany..
    Venter, C.
    North West Univ, Ctr Space Res, ZA-2520 Potchefstroom, South Africa..
    Viana, A.
    Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany..
    Vincent, P.
    Univ Pierre & Marie Curie Paris 6, Univ Denis Diderot Paris 7, CNRS, IN2P3,LPNHE, 4 Pl Jussieu, F-75252 Paris 5, France..
    Vink, J.
    Univ Amsterdam, Astron Inst Anton Pannekoek, GRAPPA, Sci Pk 904, NL-1098 XH Amsterdam, Netherlands..
    Voisin, F.
    Univ Adelaide, Sch Chem & Phys, Adelaide, SA 5005, Australia..
    Voelk, H. J.
    Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany..
    Vuillaume, T.
    Univ Grenoble Alpes, IPAG, F-38000 Grenoble, France.;CNRS, IPAG, F-38000 Grenoble, France..
    Wagner, S. J.
    Heidelberg Univ, Landessternwarte, D-69117 Heidelberg, Germany..
    Wagner, P.
    Humboldt Univ, Inst Phys, Newtonstr 15, D-12489 Berlin, Germany..
    Wagner, R. M.
    Stockholm Univ, Albanova Univ Ctr, Oskar Klein Ctr, Dept Phys, S-10691 Stockholm, Sweden..
    Weidinger, M.
    Ruhr Univ Bochum, Inst Theoret Phys, Lehrstuhl Weltraum & Astrophys 4, D-44780 Bochum, Germany..
    White, R.
    Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany.;Univ Grenoble Alpes, IPAG, F-38000 Grenoble, France.;CNRS, IPAG, F-38000 Grenoble, France..
    Wierzcholska, A.
    PAN, Inst Fizyki Jadrowej, Ul Radzikowskiego 152, PL-31342 Krakow, Poland.;Heidelberg Univ, Landessternwarte, D-69117 Heidelberg, Germany..
    Willmann, P.
    Univ Erlangen Nurnberg, Phys Inst, Erwin Rommel Str 1, D-91058 Erlangen, Germany..
    Woernlein, A.
    Univ Erlangen Nurnberg, Phys Inst, Erwin Rommel Str 1, D-91058 Erlangen, Germany..
    Wouters, D.
    CEA Saclay, DSM Irfu, F-91191 Gif Sur Yvette, France..
    Yang, R.
    Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany..
    Zabalza, V.
    Univ Leicester, Dept Phys & Astron, Univ Rd, Leicester LE1 7RH, Leics, England..
    Zaborov, D.
    Ecole Polytech, CNRS, IN2P3, Lab Leprince Ringuet, F-91128 Palaiseau, France..
    Zacharias, M.
    Heidelberg Univ, Landessternwarte, D-69117 Heidelberg, Germany..
    Zdziarski, A. A.
    Nicolaus Copernicus Astron Ctr, Ul Bartycka 18, PL-00716 Warsaw, Poland..
    Zech, A.
    Univ Paris Diderot, CNRS, Observ Paris, LUTH, 5 Pl Jules Janssen, F-92190 Meudon, France..
    Zefi, F.
    Ecole Polytech, CNRS, IN2P3, Lab Leprince Ringuet, F-91128 Palaiseau, France..
    Zywucka, N.
    Uniwersytet Jagiellonski, Obserwatorium Astron, Ul Orla 171, PL-30244 Krakow, Poland..
    Detailed spectral and morphological analysis of the shell type supernova remnant RCW 862018In: Astronomy and Astrophysics, ISSN 0004-6361, E-ISSN 1432-0746, Vol. 612, article id A4Article in journal (Refereed)
    Abstract [en]

    Aims. We aim for an understanding of the morphological and spectral properties of the supernova remnant RCW 86 and for insights into the production mechanism leading to the RCW 86 very high-energy gamma-ray emission. Methods. We analyzed High Energy Spectroscopic System (H.E.S.S.) data that had increased sensitivity compared to the observations presented in the RCW 86 H.E.S.S. discovery publication. Studies of the morphological correlation between the 0.5-1 keV X-ray band, the 2-5 keV X-ray band, radio, and gamma-ray emissions have been performed as well as broadband modeling of the spectral energy distribution with two different emission models. Results. We present the first conclusive evidence that the TeV gamma-ray emission region is shell-like based on our morphological studies. The comparison with 2-5 keV X-ray data reveals a correlation with the 0.4-50 TeV gamma-ray emission. The spectrum of RCW 86 is best described by a power law with an exponential cutoff at E-cut = (3.5 +/- 1.2(stat)) TeV and a spectral index of Gamma approximate to 1.6 +/- 0.2. A static leptonic one-zone model adequately describes the measured spectral energy distribution of RCW 86, with the resultant total kinetic energy of the electrons above 1 GeV being equivalent to similar to 0.1% of the initial kinetic energy of a Type Ia supernova explosion (10(51) erg). When using a hadronic model, a magnetic field of B approximate to 100 mu G is needed to represent the measured data. Although this is comparable to formerly published estimates, a standard E-2 spectrum for the proton distribution cannot describe the gamma-ray data. Instead, a spectral index of Gamma(p) approximate to 1.7 would be required, which implies that similar to 7 x 10(49)/n(cm-3) erg has been transferred into high-energy protons with the effective density n(cm-3) = n/1 cm(-3). This is about 10% of the kinetic energy of a typical Type Ia supernova under the assumption of a density of 1 cm(-3).

  • 162.
    Abramowski, A.
    et al.
    Univ Hamburg.
    Aharonian, F.
    Max Planck Inst Kernphys, Heidelberg, Germany.
    Benkhali, F. Ait
    Max Planck Inst Kernphys, Heidelberg, Germany.
    Akhperjanian, A. G.
    Natl Acad Sci Republ Armenia.
    Uner, E. O. Ang
    Humboldt Univ.
    Backes, M.
    Univ Namibia.
    Balenderan, S.
    Univ Durham.
    Balzer, A.
    Univ Amsterdam.
    Barnacka, A.
    Uniwersytet Jagiello, Poland.
    Becherini, Yvonne
    Linnaeus University, Faculty of Technology, Department of Physics and Electrical Engineering.
    Tjus, J. Becker
    Berge, D.
    Bernhard, S.
    Bernloehr, K.
    Birsin, E.
    Biteau, J.
    Boettcher, M.
    Boisson, C.
    Bolmont, J.
    Bordas, P.
    Bregeon, J.
    Brun, F.
    Brun, P.
    Bryan, M.
    Bulik, T.
    Carrigan, S.
    Casanova, S.
    Chadwick, P. M.
    Chakraborty, N.
    Chalme-Calvet, R.
    Chaves, R. C. G.
    Chretien, M.
    Colafrancesco, S.
    Cologna, G.
    Conrad, J.
    Couturier, C.
    Cui, Y.
    Dalton, M.
    Davids, I. D.
    Degrange, B.
    Deil, C.
    deWilt, P.
    Djannati-Atai, A.
    Domainko, W.
    Donath, A.
    Drury, L. O 'C.
    Dubus, G.
    Dutson, K.
    Dyks, J.
    Dyrda, M.
    Edwards, T.
    Egberts, K.
    Eger, P.
    Espigat, P.
    Farnier, C.
    Fegan, S.
    Feinstein, F.
    Fernandes, M. V.
    Fernandez, D.
    Fiasson, A.
    Fontaine, G.
    Foerster, A.
    Fuessling, M.
    Gabici, S.
    Gajdus, M.
    Gallant, Y. A.
    Garrigoux, T.
    Giavitto, G.
    Giebels, B.
    Glicenstein, J. F.
    Gottschall, D.
    Grondin, M. -H
    Grudzinska, M.
    Hadasch, D.
    Haeffner, S.
    Hahn, J.
    Harris, J.
    Heinzelmann, G.
    Henri, G.
    Hermann, G.
    Hervet, O.
    Hillert, A.
    Hinton, J. A.
    Hofmann, W.
    Hofverberg, P.
    Holler, M.
    Horns, D.
    Ivascenko, A.
    Jacholkowska, A.
    Jahn, C.
    Jamrozy, M.
    Janiak, M.
    Jankowsky, F.
    Jung-Richardt, I.
    Kastendieck, M. A.
    Katarzynski, K.
    Katz, U.
    Kaufmann, S.
    Khelifi, B.
    Kieffer, M.
    Klepser, S.
    Klochkov, D.
    Kluzniak, W.
    Kolitzus, D.
    Komin, Nu.
    Kosack, K.
    Krakau, S.
    Krayzel, F.
    Krueger, P. P.
    Laffon, H.
    Lamanna, G.
    Lau, J.
    Lefaucheur, J.
    Lefranc, V.
    Lemiere, A.
    Lemoine-Goumard, M.
    Lenain, J. -P
    Lohse, T.
    Lopatin, A.
    Lu, C. -C
    Marandon, V.
    Marcowith, A.
    Marx, R.
    Maurin, G.
    Maxted, N.
    Mayer, M.
    McComb, T. J. L.
    Mehault, J.
    Meintjes, P. J.
    Menzler, U.
    Meyer, M.
    Mitchell, A. M. W.
    Moderski, R.
    Mohamed, M.
    Mora, K.
    Moulin, E.
    Murach, T.
    de Naurois, M.
    Niemiec, J.
    Nolan, S. J.
    Oakes, L.
    Odaka, H.
    Ohm, S.
    Opitz, B.
    Ostrowski, M.
    Oya, I.
    Panter, M.
    Parsons, R. D.
    Arribas, M. Paz
    Pekeur, N. W.
    Pelletier, G.
    Petrucci, P. -O
    Peyaud, B.
    Pita, S.
    Poon, H.
    Puehlhofer, G.
    Punch, Michael
    Univ Paris Diderot, APC, AstroParticule & Cosmology, CNRS,IN2P3,CEA,Irfu, Observ Paris,Sorbonne Paris C, 10 Rue Alice Domon & Leonie Duquet, F-75205 Paris 13, France.
    Quirrenbach, A.
    Raab, S.
    Reichardt, I.
    Reimer, A.
    Reimer, O.
    Renaud, M.
    Reyes, R. de Los
    Rieger, F.
    Romoli, C.
    Rosier-Lees, S.
    Rowell, G.
    Rudak, B.
    Rulten, C. B.
    Sahakian, V.
    Salek, D.
    Sanchez, D. A.
    Santangelo, A.
    Schlickeiser, R.
    Schuessler, F.
    Schulz, A.
    Schwanke, U.
    Schwarzburg, S.
    Schwemmer, S.
    Sol, H.
    Spanier, F.
    Spengler, G.
    Spies, F.
    Stawarz, L.
    Steenkamp, R.
    Stegmann, C.
    Stinzing, F.
    Stycz, K.
    Sushch, I.
    Tavernet, J. -P
    Tavernier, T.
    Taylor, A. M.
    Terrier, R.
    Tluczykont, M.
    Trichard, C.
    Valerius, K.
    Van Eldik, C.
    van Soelen, B.
    Vasileiadis, G.
    Veh, J.
    Venter, C.
    Viana, A.
    Vincent, P.
    Vink, J.
    Voelk, H. J.
    Volpe, F.
    Vorster, M.
    Vuillaume, T.
    Wagner, S. J.
    Wagner, P.
    Wagner, R. M.
    Ward, M.
    Weidinger, M.
    Weitzel, Q.
    White, R.
    Wierzcholska, A.
    Willmann, P.
    Woernlein, A.
    Wouters, D.
    Yang, R.
    Zabalza, V.
    Zaborov, D.
    Zacharias, M.
    Zdziarski, A. A.
    Zech, A.
    Zechlin, H. -S
    Fukui, Y.
    Sano, H.
    Fukuda, T.
    Yoshiike, S.
    Discovery of the Hard Spectrum VHE γ-Ray Source HESS J1641–4632014In: Astrophysical Journal Letters, ISSN 2041-8205, E-ISSN 2041-8213, Vol. 794, no 1, p. Article ID: L1-Article in journal (Refereed)
    Abstract [en]

    This Letter reports the discovery of a remarkably hard spectrum source, HESS J1641-463, by the High Energy Stereoscopic System (H.E.S.S.) in the very high energy (VHE) domain. HESS J1641-463 remained unnoticed by the usual analysis techniques due to confusion with the bright nearby source HESS J1640-465. It emerged at a significance level of 8.5 standard deviations after restricting the analysis to events with energies above 4 TeV. It shows a moderate flux level of phi(E > 1TeV) = (3.64 +/- 0.44(stat)+/- 0.73(sys)) x 10(-13) cm(-2) s(-1), corresponding to 1.8% of the Crab Nebula flux above the same energy, and a hard spectrum with a photon index of Gamma = 2.07 +/- 0.11(stat)+/- 0.20(sys). It is a point-like source, although an extension up to a Gaussian width of sigma = 3 arcmin cannot be discounted due to uncertainties in the H.E.S.S. point-spread function. The VHE gamma-ray flux of HESS J1641-463 is found to be constant over the observed period when checking time binnings from the year-by-year to the 28 minute exposure timescales. HESS J1641-463 is positionally coincident with the radio supernova remnant SNR G338.5+0.1. No X-ray candidate stands out as a clear association; however, Chandra and XMM-Newton data reveal some potential weak counterparts. Various VHE gamma-ray production scenarios are discussed. If the emission from HESS J1641-463 is produced by cosmic ray protons colliding with the ambient gas, then their spectrum must extend close to 1 PeV. This object may represent a source population contributing significantly to the galactic cosmic ray flux around the knee.

  • 163.
    Abromaitis, V.
    et al.
    Kaunas Univ Technol, Lithuania ; Wetsus, European Ctr Excellence Sustainable Water Technol, Netherlands.
    Racys, V.
    Kaunas Univ Technol, Lithuania.
    van der Marel, P.
    WLN, Netherlands.
    Ni, Gaofeng
    Linnaeus University, Faculty of Health and Life Sciences, Department of Biology and Environmental Science.
    Dopson, Mark
    Linnaeus University, Faculty of Health and Life Sciences, Department of Biology and Environmental Science.
    Wolthuizen, A. L.
    Wageningen Univ, Netherlands.
    Meulepas, R. J. W.
    Wetsus, European Ctr Excellence Sustainable Water Technol, Netherlands.
    Effect of shear stress and carbon surface roughness on bioregeneration and performance of suspended versus attached biomass in metoprolol-loaded biological activated carbon systems2017In: Chemical Engineering Journal, ISSN 1385-8947, E-ISSN 1873-3212, Vol. 317, p. 503-511Article in journal (Refereed)
    Abstract [en]

    The bioregeneration of activated carbon (AC) in biological activated carbon (BAC) systems is limited by sorption-desorption hysteresis and transport between the adsorbent and biomass. In this study, we investigated these limitations and whether a biofilm covering the AC surface is required. Consequently, BAC reactors were operated at different shear stress and AC surface smoothness, since this may affect biofilm formation. The experiments were carried out in BAC and blank reactors treating synthetic wastewater containing the pharmaceutical metoprolol. After start-up, all reactors removed metoprolol completely; however, after 840 h the removal dropped due to saturation of the AC. In the blank reactors, the removal dropped to 0% while in the BAC reactors removal recovered to >99%, due to increased biological activity. During the initial phase, the metoprolol was adsorbed, rather than biodegraded. At the end, the AC from the BAC reactors had higher pore volume and sorption capacity than from the blank reactors, showing that the AC had been bioregenerated. At high shear (G = 25 s(-1)), the rough AC granules (R-a = 13 mu m) were covered with a 50-400 gm thick biofilm and the total protein content of the biofilm was 2.6 mg/gAC, while at lower shear (G = 8.8 s(-1)) the rough AC granules were only partly covered. The biofilm formation at lower shear (G = 8.8 s(-1)) on smooth AC granules (R-a = 1.6 mu m) was negligible. However, due to the presence of suspended biomass the reactor performance or bioregeneration were not reduced. This showed that direct contact between the AC and biomass was not essential in mixed BAC systems. The microbial analyses of the suspended biomass and the biofilm on AC surface indicated that metoprolol was mainly biodegraded in suspension. (C) 2017 Elsevier B.V. All rights reserved.

  • 164.
    Abudaya, Mohammed
    et al.
    Natl Res Ctr, Palestine.
    Ulman, Aylin
    Univ British Columbia, Canada.
    Salah, Jehad
    Minist Agr, Palestine.
    Fernando, Daniel
    Linnaeus University, Faculty of Health and Life Sciences, Department of Biology and Environmental Science. Manta Trust, UK;Blue Resources Trust, Sri Lanka.
    Wor, Catarina
    Univ British Columbia, Canada.
    di Sciara, Giuseppe Notarbartolo
    Tethys Res Inst, Italy.
    Speak of the devil ray (Mobula mobular) fishery in Gaza2018In: Reviews in Fish Biology and Fisheries, ISSN 0960-3166, E-ISSN 1573-5184, Vol. 28, no 1, p. 229-239Article in journal (Refereed)
    Abstract [en]

    Little is known about the giant devil ray (Mobula mobular), an endangered species endemic to the Mediterranean. Gaza is the only region where this species is targeted, hence, this fishery was studied to address the knowledge gap on fishery interactions, species behavior, and life-history traits. Devil rays have been frequenting this maritime area for at least the past 50 years for a short window from February to April. Landings are reported from 2005 to 2016, along with disc-width (DW) measurements for recent years. A total of 304 M. mobular (over 90% males) were landed in Gaza from 2014 to 2016, most which were mature and appeared to be mating (over 90% of males had sperm-filled claspers), providing critical insight that this area may serve as a mating ground. Yearly landings are shown here to closely match the allowed fishing distance from shore, which changes regularly, indicating that the rays are normally caught between 6 and 12 n.m. offshore. Width-weight conversion parameters are calculated for the first time for this species: a = 2.68 x 10(-6) and b = 4.39. Fresh protein drives this local fishery, as food security is a major issue. An export market for gill plates was reported intermittently, and is no longer possible due to strict trade restrictions. We highlight the lack of awareness of fishers regarding the IUCN's Red List 'Endangered' status of devil rays, and stress the urgent need for national protection of this species, particularly due to the species' very slow life-history traits and probable usage of this area as a mating ground.

  • 165. Accardi, L.
    et al.
    Khrennikov, Andrei
    Växjö University, Faculty of Mathematics/Science/Technology, School of Mathematics and Systems Engineering.
    Ohya, M.
    The problem of quantum-like representation in economy, cognitive science, and genetics2009In: Quantum Bio-Informatics II: from Quantum Information toBio-Informatics, Singapore: WSP , 2009, p. 1-8Chapter in book (Refereed)
  • 166. Accardi, Luigi
    et al.
    Khrennikov, Andrei
    Växjö University, Faculty of Mathematics/Science/Technology, School of Mathematics and Systems Engineering.
    Ohya, Masanori
    Quantum Markov Model for Data from Shafir-Tversky Experiments in Cognitive Psychology2009In: Open systems & information dynamics, ISSN 1230-1612, E-ISSN 1573-1324, Vol. 16, no 4, p. 371-385Article in journal (Refereed)
    Abstract [en]

    We analyze, from the point of view of quantum probability, statistical data from two interesting experiments, done by Shafir and Tversky [1, 2] in the domain of cognitive psychology. These are gambling experiments of Prisoner Dilemma type. They have important consequences for economics, especially for the justification of the Savage "Sure Thing Principle" [3] (implying that agents of the market behave rationally). Data from these experiments were astonishing, both from the viewpoint of cognitive psychology and economics and probability theory. Players behaved irrationally. Moreover, all attempts to generate these data by using classical Markov model were unsuccessful. In this note we show (by inventing a simple statistical test — generalized detailed balance condition) that these data are non-Kolmogorovian. We also show that it is neither quantum (i.e., it cannot be described by Dirac-von Neumann model). We proceed towards a quantum Markov model for these data.

  • 167.
    Accardi, Luigi
    et al.
    Univ Rome Torvergata, Italy.
    Khrennikov, Andrei
    Linnaeus University, Faculty of Technology, Department of Mathematics.
    Ohya, Masanori
    Tokyo Univ Sci, Japan.
    Tanaka, Yoshiharu
    Tokyo Univ Sci, Japan.
    Yamato, Ichiro
    Tokyo Univ Sci, Japan.
    Application of Non-Kolmogorovian Probability and Quantum Adaptive Dynamics to Unconscious Inference in Visual Perception Process2016In: Open systems & information dynamics, ISSN 1230-1612, E-ISSN 1573-1324, Vol. 23, no 2, article id 1650011Article in journal (Refereed)
    Abstract [en]

    Recently a novel quantum information formalism - quantum adaptive dynamics - was developed and applied to modelling of information processing by bio-systems including cognitive phenomena: from molecular biology (glucose-lactose metabolism for E.coli bacteria, epigenetic evolution) to cognition, psychology. From the foundational point of view quantum adaptive dynamics describes mutual adapting of the information states of two interacting systems (physical or biological) as well as adapting of co-observations performed by the systems. In this paper we apply this formalism to model unconscious inference: the process of transition from sensation to perception. The paper combines theory and experiment. Statistical data collected in an experimental study on recognition of a particular ambiguous figure, the Schroer stairs, support the viability of the quantum(-like) model of unconscious inference including modelling of biases generated by rotation-contexts. From the probabilistic point of view, we study (for concrete experimental data) the problem of contextuality of probability, its dependence on experimental contexts. Mathematically contextuality leads to non-Komogorovness: probability distributions generated by various rotation contexts cannot be treated in the Kolmogorovian framework. At the same time they can be embedded in a "big Kolmogorov space" as conditional probabilities. However, such a Kolmogorov space has too complex structure and the operational quantum formalism in the form of quantum adaptive dynamics simplifies the modelling essentially.

  • 168. Acciari, V. A.
    et al.
    Aliu, E.
    Araya, M.
    Arlen, T.
    Aune, T.
    Beilicke, M.
    Benbow, W.
    Bradbury, S. M.
    Buckley, J. H.
    Bugaev, V.
    Byrum, K.
    Cannon, A.
    Cesarini, A.
    Ciupik, L.
    Collins-Hughes, E.
    Cui, W.
    Dickherber, R.
    Duke, C.
    Falcone, A.
    Finley, J. P.
    Fortson, L.
    Furniss, A.
    Galante, N.
    Gall, D.
    Godambe, S.
    Griffin, S.
    Guenette, R.
    Gyuk, G.
    Hanna, D.
    Holder, J.
    Hughes, G.
    Hui, C. M.
    Humensky, T. B.
    Imran, A.
    Kaaret, P.
    Kertzman, M.
    Krawczynski, H.
    Krennrich, F.
    Madhavan, A. S.
    Maier, G.
    Majumdar, P.
    McArthur, S.
    Moriarty, P.
    Ong, R. A.
    Otte, A. N.
    Pandel, D.
    Park, N.
    Perkins, J. S.
    Pohl, M.
    Prokoph, Heike
    DESY, Germany .
    Quinn, J.
    Ragan, K.
    Reyes, L. C.
    Reynolds, P. T.
    Roache, E.
    Rose, H. J.
    Saxon, D. B.
    Sembroski, G. H.
    Sentürk, G. D.
    Smith, A. W.
    Te\v sić, G.
    Theiling, M.
    Thibadeau, S.
    Varlotta, A.
    Vincent, S.
    Vivier, M.
    Wakely, S. P.
    Ward, J. E.
    Weekes, T. C.
    Weinstein, A.
    Weisgarber, T.
    Weng, S.
    Williams, D. A.
    Wood, M.
    Zitzer, B.
    Gamma-Ray Observations of the Be/Pulsar Binary 1A 0535+262 During a Giant X-Ray Outburst2011In: Astrophysical Journal, ISSN 0004-637X, E-ISSN 1538-4357, Vol. 733, no 2, article id 96Article in journal (Refereed)
    Abstract [en]

    Giant X-ray outbursts, with luminosities of about 1037 erg s–1, are observed roughly every five years from the nearby Be/pulsar binary 1A 0535+262. In this article, we present observations of the source with VERITAS at very high energies (VHEs;E >100 GeV) triggered by the X-ray outburst in 2009 December. The observations started shortly after the onset of the outburst and provided comprehensive coverage of the episode, as well as the 111 day binary orbit. No VHE emission is evident at any time. We also examined data from the contemporaneous observations of 1A 0535+262 with the Fermi/Large Area Telescope at high-energy photons (E > 0.1 GeV) and failed to detect the source at GeV energies. The X-ray continua measured with theSwift/X-Ray Telescope and the RXTE/PCA can be well described by the combination of blackbody and Comptonized emission from thermal electrons. Therefore, the gamma-ray and X-ray observations suggest the absence of a significant population of non-thermal particles in the system. This distinguishes 1A 0535+262 from those Be X-ray binaries (such as PSR B1259-63 and LS I +61°303) that have been detected at GeV-TeV energies. We discuss the implications of the results on theoretical models.

  • 169. Acciari, V. A.
    et al.
    Aliu, E.
    Arlen, T.
    Aune, T.
    Beilicke, M.
    Benbow, W.
    Bradbury, S. M.
    Buckley, J. H.
    Bugaev, V.
    Byrum, K.
    Cannon, A.
    Cesarini, A.
    Christiansen, J. L.
    Ciupik, L.
    Collins-Hughes, E.
    Connolly, M. P.
    Cui, W.
    Duke, C.
    Errando, M.
    Falcone, A.
    Finley, J. P.
    Finnegan, G.
    Fortson, L.
    Furniss, A.
    Galante, N.
    Gall, D.
    Godambe, S.
    Griffin, S.
    Grube, J.
    Guenette, R.
    Gyuk, G.
    Hanna, D.
    Holder, J.
    Hughes, G.
    Hui, C. M.
    Humensky, T. B.
    Jackson, D. J.
    Kaaret, P.
    Karlsson, N.
    Kertzman, M.
    Kieda, D.
    Krawczynski, H.
    Krennrich, F.
    Lang, M. J.
    Madhavan, A. S.
    Maier, G.
    McArthur, S.
    McCann, A.
    Moriarty, P.
    Newbold, M. D.
    Ong, R. A.
    Orr, M.
    Otte, A. N.
    Park, N.
    Perkins, J. S.
    Pohl, M.
    Prokoph, Heike
    DESY, Germany.
    Quinn, J.
    Ragan, K.
    Reyes, L. C.
    Reynolds, P. T.
    Roache, E.
    Rose, H. J.
    Ruppel, J.
    Saxon, D. B.
    Schroedter, M.
    Sembroski, G. H.
    Sentürk, G. D.
    Smith, A. W.
    Staszak, D.
    Swordy, S. P.
    Te\v sić, G.
    Theiling, M.
    Thibadeau, S.
    Tsurusaki, K.
    Varlotta, A.
    Vassiliev, V. V.
    Vincent, S.
    Vivier, M.
    Wakely, S. P.
    Ward, J. E.
    Weekes, T. C.
    Weinstein, A.
    Weisgarber, T.
    Williams, D. A.
    Wood, M.
    VERITAS Observations of Gamma-Ray Bursts Detected by Swift2011In: Astrophysical Journal, ISSN 0004-637X, E-ISSN 1538-4357, Vol. 743, no 1, article id 62Article in journal (Refereed)
    Abstract [en]

    We present the results of 16 Swift-triggered Gamma-ray burst (GRB) follow-up observations taken with the Very Energetic Radiation Imaging Telescope Array System (VERITAS) telescope array from 2007 January to 2009 June. The median energy threshold and response time of these observations were 260 GeV and 320 s, respectively. Observations had an average duration of 90 minutes. Each burst is analyzed independently in two modes: over the whole duration of the observations and again over a shorter timescale determined by the maximum VERITAS sensitivity to a burst with a t –1.5 time profile. This temporal model is characteristic of GRB afterglows with high-energy, long-lived emission that have been detected by the Large Area Telescope on board the Fermi satellite. No significant very high energy (VHE) gamma-ray emission was detected and upper limits above the VERITAS threshold energy are calculated. The VERITAS upper limits are corrected for gamma-ray extinction by the extragalactic background light and interpreted in the context of the keV emission detected by Swift. For some bursts the VHE emission must have less power than the keV emission, placing constraints on inverse Compton models of VHE emission.

  • 170. Acciari, V. A.
    et al.
    Aliu, E.
    Arlen, T.
    Aune, T.
    Beilicke, M.
    Benbow, W.
    Bradbury, S. M.
    Buckley, J. H.
    Bugaev, V.
    Byrum, K.
    Cannon, A.
    Cesarini, A.
    Ciupik, L.
    Collins-Hughes, E.
    Connolly, M. P.
    Cui, W.
    Dickherber, R.
    Duke, C.
    Errando, M.
    Falcone, A.
    Finley, J. P.
    Finnegan, G.
    Fortson, L.
    Furniss, A.
    Galante, N.
    Gall, D.
    Gillanders, G. H.
    Godambe, S.
    Griffin, S.
    Grube, J.
    Guenette, R.
    Gyuk, G.
    Hanna, D.
    Holder, J.
    Hughes, G.
    Hui, C. M.
    Humensky, T. B.
    Kaaret, P.
    Karlsson, N.
    Kertzman, M.
    Kieda, D.
    Krawczynski, H.
    Krennrich, F.
    Lang, M. J.
    LeBohec, S.
    Maier, G.
    Majumdar, P.
    McArthur, S.
    McCann, A.
    Moriarty, P.
    Mukherjee, R.
    Ong, R. A.
    Orr, M.
    Otte, A. N.
    Park, N.
    Perkins, J. S.
    Pohl, M.
    Prokoph, Heike
    DESY, Germany .
    Quinn, J.
    Ragan, K.
    Reyes, L. C.
    Reynolds, P. T.
    Roache, E.
    Rose, H. J.
    Ruppel, J.
    Saxon, D. B.
    Schroedter, M.
    Sembroski, G. H.
    Senturk, G. D.
    Smith, A. W.
    Staszak, D.
    Tesić, G.
    Theiling, M.
    Thibadeau, S.
    Tsurusaki, K.
    Varlotta, A.
    Vassiliev, V. V.
    Vincent, S.
    Vivier, M.
    Wakely, S. P.
    Ward, J. E.
    Weekes, T. C.
    Weinstein, A.
    Weisgarber, T.
    Williams, D. A.
    Zitzer, B.
    VERITAS Observations of the TeV Binary LS I +61\deg 303 During 2008-20102011In: Astrophysical Journal, ISSN 0004-637X, E-ISSN 1538-4357, Vol. 738, no 1, article id 3Article in journal (Refereed)
    Abstract [en]

    We present the results of observations of the TeV binary LS I +61° 303 with the VERITAS telescope array between 2008 and 2010, at energies above 300 GeV. In the past, both ground-based gamma-ray telescopes VERITAS and MAGIC have reported detections of TeV emission near the apastron phases of the binary orbit. The observations presented here show no strong evidence for TeV emission during these orbital phases; however, during observations taken in late 2010, significant emission was detected from the source close to the phase of superior conjunction (much closer to periastron passage) at a 5.6 standard deviation (5.6σ) post-trials significance. In total, between 2008 October and 2010 December a total exposure of 64.5 hr was accumulated with VERITAS on LS I +61° 303, resulting in an excess at the 3.3σ significance level for constant emission over the entire integrated data set. The flux upper limits derived for emission during the previously reliably active TeV phases (i.e., close to apastron) are less than 5% of the Crab Nebula flux in the same energy range. This result stands in apparent contrast to previous observations by both MAGIC and VERITAS which detected the source during these phases at 10% of the Crab Nebula flux. During the two year span of observations, a large amount of X-ray data were also accrued on LS I +61° 303 by theSwift X-ray Telescope and the Rossi X-ray Timing Explorer Proportional Counter Array. We find no evidence for a correlation between emission in the X-ray and TeV regimes during 20 directly overlapping observations. We also comment on data obtained contemporaneously by the Fermi Large Area Telescope.

  • 171. Acciari, V. A.
    et al.
    Aliu, E.
    Arlen, T.
    Bautista, M.
    Beilicke, M.
    Benbow, W.
    Bradbury, S. M.
    Buckley, J. H.
    Bugaev, V.
    Butt, Y.
    Byrum, K.
    Cannon, A.
    Celik, O.
    Cesarini, A.
    Chow, Y. C.
    Ciupik, L.
    Cogan, P.
    Cui, W.
    Dickherber, R.
    Fegan, S. J.
    Finley, J. P.
    Fortin, P.
    Fortson, L.
    Furniss, A.
    Gall, D.
    Gillanders, G. H.
    Grube, J.
    Guenette, R.
    Gyuk, G.
    Hanna, D.
    Holder, J.
    Horan, D.
    Hui, C. M.
    Humensky, T. B.
    Imran, A.
    Kaaret, P.
    Karlsson, N.
    Kieda, D.
    Kildea, J.
    Konopelko, A.
    Krawczynski, H.
    Krennrich, F.
    Lang, M. J.
    LeBohec, S.
    Maier, G.
    McCann, A.
    McCutcheon, M.
    Millis, J.
    Moriarty, P.
    Ong, R. A.
    Otte, A. N.
    Pandel, D.
    Perkins, J. S.
    Petry, D.
    Pohl, M.
    Quinn, J.
    Ragan, K.
    Reyes, L. C.
    Reynolds, P. T.
    Roache, E.
    Rose, H. J.
    Schroedter, M.
    Sembroski, G. H.
    Smith, A. W.
    Swordy, S. P.
    Theiling, M.
    Toner, J. A.
    Varlotta, A.
    Vincent, S.
    Wakely, S. P.
    Ward, J. E.
    Weekes, T. C.
    Weinstein, A.
    Williams, D. A.
    Wissel, S.
    Wood, M.
    Walker, R. C.
    Davies, F.
    Hardee, P. E.
    Junor, W.
    Ly, C.
    Aharonian, F.
    Akhperjanian, A. G.
    Anton, G.
    de Almeida, U. Barres
    Bazer-Bachi, A. R.
    Becherini, Yvonne
    Behera, B.
    Bernloehr, K.
    Bochow, A.
    Boisson, C.
    Bolmont, J.
    Borrel, V.
    Brucker, J.
    Brun, F.
    Brun, P.
    Buehler, R.
    Bulik, T.
    Buesching, I.
    Boutelier, T.
    Chadwick, P. M.
    Charbonnier, A.
    Chaves, R. C. G.
    Cheesebrough, A.
    Chounet, L. -M
    Clapson, A. C.
    Coignet, G.
    Dalton, M.
    Daniel, M. K.
    Davids, I. D.
    Degrange, B.
    Deil, C.
    Dickinson, H. J.
    Djannati-Atai, A.
    Domainko, W.
    Drury, L. O ' C
    Dubois, F.
    Dubus, G.
    Dyks, J.
    Dyrda, M.
    Egberts, K.
    Emmanoulopoulos, D.
    Espigat, P.
    Farnier, C.
    Feinstein, F.
    Fiasson, A.
    Foerster, A.
    Fontaine, G.
    Fuessling, M.
    Gabici, S.
    Gallant, Y. A.
    Gerard, L.
    Gerbig, D.
    Giebels, B.
    Glicenstein, J. F.
    Glueck, B.
    Goret, P.
    Goehring, D.
    Hauser, D.
    Hauser, M.
    Heinz, S.
    Heinzelmann, G.
    Henri, G.
    Hermann, G.
    Hinton, J. A.
    Hoffmann, A.
    Hofmann, W.
    Holleran, M.
    Hoppe, S.
    Horns, D.
    Jacholkowska, A.
    de Jager, O. C.
    Jahn, C.
    Jung, I.
    Katarzynski, K.
    Katz, U.
    Kaufmann, S.
    Kendziorra, E.
    Kerschhaggl, M.
    Khangulyan, D.
    Khelifi, B.
    Keogh, D.
    Kluzniak, W.
    Kneiske, T.
    Komin, Nu.
    Kosack, K.
    Lamanna, G.
    Lenain, J. -P
    Lohse, T.
    Marandon, V.
    Martin, J. M.
    Martineau-Huynh, O.
    Marcowith, A.
    Maurin, D.
    McComb, T. J. L.
    Medina, M. C.
    Moderski, R.
    Moulin, E.
    Naumann-Godo, M.
    de Naurois, M.
    Nedbal, D.
    Nekrassov, D.
    Nicholas, B.
    Niemiec, J.
    Nolan, S. J.
    Ohm, S.
    Olive, J. -F
    Wilhelmi, E. de Ona
    Orford, K. J.
    Ostrowski, M.
    Panter, M.
    Arribas, M. Paz
    Pedaletti, G.
    Pelletier, G.
    Petrucci, P. -O
    Pita, S.
    Raue, M.
    Rayner, S. M.
    Renaud, M.
    Rieger, F.
    Ripken, J.
    Rob, L.
    Rosier-Lees, S.
    Rowell, G.
    Rudak, B.
    Rulten, C. B.
    Ruppel, J.
    Sahakian, V.
    Santangelo, A.
    Schlickeiser, R.
    Schoeck, F. M.
    Schroeder, R.
    Schwanke, U.
    Schwarzburg, S.
    Schwemmer, S.
    Shalchi, A.
    Sikora, M.
    Skilton, J. L.
    Sol, H.
    Spangler, D.
    Stawarz, L.
    Steenkamp, R.
    Stegmann, C.
    Stinzing, F.
    Superina, G.
    Szostek, A.
    Tam, P. H.
    Tavernet, J. -P
    Terrier, R.
    Tibolla, O.
    Tluczykont, M.
    van Eldik, C.
    Vasileiadis, G.
    Venter, C.
    Venter, L.
    Vialle, J. P.
    Vincent, P.
    Vivier, M.
    Voelk, H. J.
    Volpe, F.
    Wagner, S. J.
    Ward, M.
    Zdziarski, A. A.
    Zech, A.
    Anderhub, H.
    Antonelli, L. A.
    Antoranz, P.
    Backes, M.
    Baixeras, C.
    Balestra, S.
    Barrio, J. A.
    Bastieri, D.
    Gonzlez, J. Becerra
    Becker, J. K.
    Bednarek, W.
    Berger, K.
    Bernardini, E.
    Biland, A.
    Bock, R. K.
    Bonnoli, G.
    Bordas, P.
    Tridon, D. Borla
    Bosch-Ramon, V.
    Bose, D.
    Braun, I.
    Bretz, T.
    Britvitch, I.
    Camara, M.
    Carmona, E.
    Commichau, S.
    Contreras, J. L.
    Cortina, J.
    Costado, M. T.
    Covino, S.
    Curtef, V.
    Dazzi, F.
    De Angelis, A.
    Del Pozo, E. De Cea
    Mendez, C. Delgado
    De los Reyes, R.
    De Lotto, B.
    De Maria, M.
    De Sabata, F.
    Dominguez, A.
    Dorner, D.
    Doro, M.
    Elsaesser, D.
    Errando, M.
    Ferenc, D.
    Fernndez, E.
    Firpo, R.
    Fonseca, M. V.
    Font, L.
    Galante, N.
    Lopez, R. J. Garcia
    Garczarczyk, M.
    Gaug, M.
    Goebel, F.
    Hadasch, D.
    Hayashida, M.
    Herrero, A.
    Hildebrand, D.
    Hoehne-Moench, D.
    Hose, J.
    Hsu, C. C.
    Jogler, T.
    Kranich, D.
    La Barbera, A.
    Laille, A.
    Leonardo, E.
    Lindfors, E.
    Lombardi, S.
    Longo, F.
    Lopez, M.
    Lorenz, E.
    Majumdar, P.
    Maneva, G.
    Mankuzhiyil, N.
    Mannheim, K.
    Maraschi, L.
    Mariotti, M.
    Martinez, M.
    Mazin, D.
    Meucci, M.
    Miranda, J. M.
    Mirzoyan, R.
    Miyamoto, H.
    Moldon, J.
    Moles, M.
    Moralejo, A.
    Nieto, D.
    Nilsson, K.
    Ninkovic, J.
    Oya, I.
    Paoletti, R.
    Paredes, J. M.
    Pasanen, M.
    Pascoli, D.
    Pauss, F.
    Pegna, R. G.
    Perez-Torres, M. A.
    Persic, M.
    Peruzzo, L.
    Prada, F.
    Prandini, E.
    Puchades, N.
    Reichardt, I.
    Rhode, W.
    Ribo, M.
    Rico, J.
    Rissi, M.
    Robert, A.
    Ruegamer, S.
    Saggion, A.
    Saito, T. Y.
    Salvati, M.
    Sanchez-Conde, M.
    Satalecka, K.
    Scalzotto, V.
    Scapin, V.
    Schweizer, T.
    Shayduk, M.
    Shore, S. N.
    Sidro, N.
    Sierpowska-Bartosik, A.
    Sillanpaa, A.
    Sitarek, J.
    Sobczynska, D.
    Spanier, F.
    Stamerra, A.
    Stark, L. S.
    Takalo, L.
    Tavecchio, F.
    Temnikov, P.
    Tescaro, D.
    Teshima, M.
    Torres, D. F.
    Turini, N.
    Vankov, H.
    Wagner, R. M.
    Zabalza, V.
    Zandanel, F.
    Zanin, R.
    Zapatero, J.
    Radio Imaging of the Very-High-Energy gamma-Ray Emission Region in the Central Engine of a Radio Galaxy2009In: Science, ISSN 0036-8075, E-ISSN 1095-9203, Vol. 325, no 5939, p. 444-448Article in journal (Refereed)
    Abstract [en]

    The accretion of matter onto a massive black hole is believed to feed the relativistic plasma jets found in many active galactic nuclei (AGN). Although some AGN accelerate particles to energies exceeding 10(12) electron volts and are bright sources of very-high-energy (VHE) gamma-ray emission, it is not yet known where the VHE emission originates. Here we report on radio and VHE observations of the radio galaxy Messier 87, revealing a period of extremely strong VHE gamma-ray flares accompanied by a strong increase of the radio flux from its nucleus. These results imply that charged particles are accelerated to very high energies in the immediate vicinity of the black hole.

  • 172. Acero, F.
    et al.
    Aharonian, F.
    Akhperjanian, A. G.
    Anton, G.
    de Almeida, U. Barres
    Bazer-Bachi, A. R.
    Becherini, Yvonne
    Behera, B.
    Beilicke, M.
    Bernloehr, K.
    Bochow, A.
    Boisson, C.
    Bolmont, J.
    Borrel, V.
    Brucker, J.
    Brun, F.
    Brun, P.
    Buehler, R.
    Bulik, T.
    Buesching, I.
    Boutelier, T.
    Chadwick, P. M.
    Charbonnier, A.
    Chaves, R. C. G.
    Cheesebrough, A.
    Conrad, J.
    Chounet, L. -M
    Clapson, A. C.
    Coignet, G.
    Dalton, M.
    Daniel, M. K.
    Davids, I. D.
    Degrange, B.
    Deil, C.
    Dickinson, H. J.
    Djannati-Atai, A.
    Domainko, W.
    Drury, L. O 'C.
    Dubois, F.
    Dubus, G.
    Dyks, J.
    Dyrda, M.
    Egberts, K.
    Eger, P.
    Espigat, P.
    Fallon, L.
    Farnier, C.
    Fegan, S.
    Feinstein, F.
    Fiasson, A.
    Foerster, A.
    Fontaine, G.
    Fuessling, M.
    Gabici, S.
    Gallant, Y. A.
    Gerard, L.
    Gerbig, D.
    Giebels, B.
    Glicenstein, J. F.
    Glueck, B.
    Goret, P.
    Goering, D.
    Hauser, D.
    Hauser, M.
    Heinz, S.
    Heinzelmann, G.
    Henri, G.
    Hermann, G.
    Hinton, J. A.
    Hoffmann, A.
    Hofmann, W.
    Hofverberg, P.
    Holleran, M.
    Hoppe, S.
    Horns, D.
    Jacholkowska, A.
    de Jager, O. C.
    Jahn, C.
    Jung, I.
    Katarzynski, K.
    Katz, U.
    Kaufmann, S.
    Kerschhaggl, M.
    Khangulyan, D.
    Khelifi, B.
    Keogh, D.
    Klochkov, D.
    Kluzniak, W.
    Kneiske, T.
    Komin, Nu.
    Kosack, K.
    Kossakowski, R.
    Lamanna, G.
    Lemoine-Goumard, M.
    Lenain, J. -P
    Lohse, T.
    Marandon, V.
    Marcowith, A.
    Masbou, J.
    Maurin, D.
    McComb, T. J. L.
    Medina, M. C.
    Mehault, J.
    Moderski, R.
    Moulin, E.
    Naumann-Godo, M.
    de Naurois, M.
    Nedbal, D.
    Nekrassov, D.
    Nicholas, B.
    Niemiec, J.
    Nolan, S. J.
    Ohm, S.
    Olive, J. -F
    Wilhelmi, E. de Ona
    Orford, K. J.
    Ostrowski, M.
    Panter, M.
    Arribas, M. Paz
    Pedaletti, G.
    Pelletier, G.
    Petrucci, P. -O
    Pita, S.
    Puehlhofer, G.
    Punch, M.
    Univ Paris Diderot, APC, AstroParticule & Cosmology, CNRS,IN2P3,CEA,Irfu, Observ Paris,Sorbonne Paris C, 10 Rue Alice Domon & Leonie Duquet, F-75205 Paris 13, France.
    Quirrenbach, A.
    Raubenheimer, B. C.
    Raue, M.
    Rayner, S. M.
    Reimer, O.
    Renaud, M.
    de los Reyes, R.
    Rieger, F.
    Ripken, J.
    Rob, L.
    Rosier-Lees, S.
    Rowell, G.
    Rudak, B.
    Rulten, C. B.
    Ruppel, J.
    Ryde, F.
    Sahakian, V.
    Santangelo, A.
    Schlickeiser, R.
    Schoeck, F. M.
    Schoenwald, A.
    Schwanke, U.
    Schwarzburg, S.
    Schwemmer, S.
    Shalchi, A.
    Sushch, I.
    Sikora, M.
    Skilton, J. L.
    Sol, H.
    Stawarz, L.
    Steenkamp, R.
    Stegmann, C.
    Stinzing, F.
    Superina, G.
    Szostek, A.
    Tam, P. H.
    Tavernet, J. -P
    Terrier, R.
    Tibolla, O.
    Tluczykont, M.
    van Eldik, C.
    Vasileiadis, G.
    Venter, C.
    Venter, L.
    Vialle, J. P.
    Vincent, P.
    Vink, J.
    Vivier, M.
    Voelk, H. J.
    Volpe, F.
    Vorobiov, S.
    Wagner, S. J.
    Ward, M.
    Zdziarski, A. A.
    Zech, A.
    First detection of VHE gamma-rays from SN 1006 by HESS2010In: Astronomy and Astrophysics, ISSN 0004-6361, E-ISSN 1432-0746, Vol. 516, p. A62-Article in journal (Refereed)
    Abstract [en]

    Aims. Recent theoretical predictions of the lowest very high energy (VHE) luminosity of SN 1006 are only a factor 5 below the previously published HESS upper limit, thus motivating further in-depth observations of this source. Methods. Deep observations at VHE energies (above 100 GeV) were carried out with the high energy stereoscopic system (HESS) of Cherenkov Telescopes from 2003 to 2008. More than 100 h of data have been collected and subjected to an improved analysis procedure. Results. Observations resulted in the detection of VHE gamma-rays from SN 1006. The measured gamma-ray spectrum is compatible with a power-law, the flux is of the order of 1% of that detected from the Crab Nebula, and is thus consistent with the previously established HESS upper limit. The source exhibits a bipolar morphology, which is strongly correlated with non-thermal X-rays. Conclusions. Because the thickness of the VHE-shell is compatible with emission from a thin rim, particle acceleration in shock waves is likely to be the origin of the gamma-ray signal. The measured flux level can be accounted for by inverse Compton emission, but a mixed scenario that includes leptonic and hadronic components and takes into account the ambient matter density inferred from observations also leads to a satisfactory description of the multi-wavelength spectrum.

  • 173. Acero, F.
    et al.
    Aharonian, F.
    Akhperjanian, A. G.
    Anton, G.
    de Almeida, U. Barres
    Bazer-Bachi, A. R.
    Becherini, Yvonne
    Behera, B.
    Benbow, W.
    Bernloehr, K.
    Bochow, A.
    Boisson, C.
    Bolmont, J.
    Borrel, V.
    Brucker, J.
    Brun, F.
    Brun, P.
    Buehler, R.
    Bulik, T.
    Buesching, I.
    Boutelier, T.
    Chadwick, P. M.
    Charbonnier, A.
    Chaves, R. C. G.
    Cheesebrough, A.
    Chounet, L. -M
    Clapson, A. C.
    Coignet, G.
    Costamante, L.
    Dalton, M.
    Daniel, M. K.
    Davids, I. D.
    Degrange, B.
    Deil, C.
    Dickinson, H. J.
    Djannati-Atai, A.
    Domainko, W.
    Drury, L. O 'C.
    Dubois, F.
    Dubus, G.
    Dyks, J.
    Dyrda, M.
    Egberts, K.
    Eger, P.
    Espigat, P.
    Fallon, L.
    Farnier, C.
    Fegan, S.
    Feinstein, F.
    Fiasson, A.
    Foerster, A.
    Fontaine, G.
    Fuessling, M.
    Gabici, S.
    Gallant, Y. A.
    Gerard, L.
    Gerbig, D.
    Giebels, B.
    Glicenstein, J. F.
    Glueck, B.
    Goret, P.
    Goering, D.
    Hauser, M.
    Heinz, S.
    Heinzelmann, G.
    Henri, G.
    Hermann, G.
    Hinton, J. A.
    Hoffmann, A.
    Hofmann, W.
    Hofverberg, P.
    Holleran, M.
    Hoppe, S.
    Horns, D.
    Jacholkowska, A.
    de Jager, O. C.
    Jahn, C.
    Jung, I.
    Katarzynski, K.
    Katz, U.
    Kaufmann, S.
    Kerschhaggl, M.
    Khangulyan, D.
    Khelifi, B.
    Keogh, D.
    Klochkov, D.
    Kluzniak, W.
    Kneiske, T.
    Komin, Nu.
    Kosack, K.
    Kossakowski, R.
    Lamanna, G.
    Lenain, J. -P
    Lohse, T.
    Marandon, V.
    Martineau-Huynh, O.
    Marcowith, A.
    Masbou, J.
    Maurin, D.
    McComb, T. J. L.
    Medina, M. C.
    Mehault, J.
    Moderski, R.
    Moulin, E.
    Naumann-Godo, M.
    de Naurois, M.
    Nedbal, D.
    Nekrassov, D.
    Nicholas, B.
    Niemiec, J.
    Nolan, S. J.
    Ohm, S.
    Olive, J. -F
    Wilhelmi, E. de Ona
    Orford, K. J.
    Ostrowski, M.
    Panter, M.
    Arribas, M. Paz
    Pedaletti, G.
    Pelletier, G.
    Petrucci, P. -O
    Pita, S.
    Puehlhofer, G.
    Punch, M.
    Univ Paris Diderot, APC, AstroParticule & Cosmology, CNRS,IN2P3,CEA,Irfu, Observ Paris,Sorbonne Paris C, 10 Rue Alice Domon & Leonie Duquet, F-75205 Paris 13, France.
    Quirrenbach, A.
    Raubenheimer, B. C.
    Raue, M.
    Rayner, S. M.
    Renaud, M.
    Rieger, F.
    Ripken, J.
    Rob, L.
    Rosier-Lees, S.
    Rowell, G.
    Rudak, B.
    Rulten, C. B.
    Ruppel, J.
    Sahakian, V.
    Santangelo, A.
    Schlickeiser, R.
    Schoeck, F. M.
    Schwanke, U.
    Schwarzburg, S.
    Schwemmer, S.
    Shalchi, A.
    Sikora, M.
    Skilton, J. L.
    Sol, H.
    Stawarz, L.
    Steenkamp, R.
    Stegmann, C.
    Stinzing, F.
    Superina, G.
    Szostek, A.
    Tam, P. H.
    Tavernet, J. -P
    Terrier, R.
    Tibolla, O.
    Tluczykont, M.
    van Eldik, C.
    Vasileiadis, G.
    Venter, C.
    Venter, L.
    Vialle, J. P.
    Vincent, P.
    Vivier, M.
    Voelk, H. J.
    Volpe, F.
    Wagner, S. J.
    Ward, M.
    Zdziarski, A. A.
    Zech, A.
    PKS2005-489 at VHE: four years of monitoring with HESS and simultaneous multi-wavelength observations2010In: Astronomy and Astrophysics, ISSN 0004-6361, E-ISSN 1432-0746, Vol. 511, p. A52-Article in journal (Refereed)
    Abstract [en]

    Aims. Our aim is to study the very high energy (VHE; E > 100 GeV) gamma-ray emission from BL Lac objects and the evolution in time of their broad-band spectral energy distribution (SED). Methods. VHE observations of the high-frequency peaked BL Lac object PKS 2005-489 were made with the High Energy Stereoscopic System (HESS) from 2004 through 2007. Three simultaneous multi-wavelength campaigns at lower energies were performed during the HESS data taking, consisting of several individual pointings with the XMM-Newton and RXTE satellites. Results. A strong VHE signal, similar to 17 sigma total, from PKS 2005-489 was detected during the four years of HESS observations (90.3 h live time). The integral flux above the average analysis threshold of 400 GeV is similar to 3% of the flux observed from the Crab Nebula and varies weakly on time scales from days to years. The average VHE spectrum measured from similar to 300 GeV to similar to 5 TeV is characterized by a power law with a photon index, Gamma = 3.20 +/- 0.16(stat) +/- 0.10(syst). At X-ray energies the flux is observed to vary by more than an order of magnitude between 2004 and 2005. Strong changes in the X-ray spectrum (Delta Gamma(X) approximate to 0.7) are also observed, which appear to be mirrored in the VHE band. Conclusions. The SED of PKS 2005-489, constructed for the first time with contemporaneous data on both humps, shows significant evolution. The large flux variations in the X-ray band, coupled with weak or no variations in the VHE band and a similar spectral behavior, suggest the emergence of a new, separate, harder emission component in September 2005.

  • 174. Acero, F.
    et al.
    Aharonian, F.
    Akhperjanian, A. G.
    Anton, G.
    de Almeida, U. Barres
    Bazer-Bachi, A. R.
    Becherini, Yvonne
    Behera, B.
    Bernloehr, K.
    Bochow, A.
    Boisson, C.
    Bolmont, J.
    Borrel, V.
    Braun, I.
    Brucker, J.
    Brun, F.
    Brun, P.
    Buehler, R.
    Bulik, T.
    Buesching, I.
    Boutelier, T.
    Chadwick, P. M.
    Charbonnier, A.
    Chaves, R. C. G.
    Cheesebrough, A.
    Conrad, J.
    Chounet, L. -M
    Clapson, A. C.
    Coignet, G.
    Dalton, M.
    Daniel, M. K.
    Davids, I. D.
    Degrange, B.
    Deil, C.
    Dickinson, H. J.
    Djannati-Atai, A.
    Domainko, W.
    Drury, L. O 'C.
    Dubois, F.
    Dubus, G.
    Dyks, J.
    Dyrda, M.
    Egberts, K.
    Eger, P.
    Espigat, P.
    Fallon, L.
    Farnier, C.
    Fegan, S.
    Feinstein, F.
    Fiasson, A.
    Foerster, A.
    Fontaine, G.
    Fuessling, M.
    Gabici, S.
    Gallant, Y. A.
    Gerard, L.
    Gerbig, D.
    Giebels, B.
    Glicenstein, J. F.
    Glueck, B.
    Goret, P.
    Goering, D.
    Hauser, M.
    Heinz, S.
    Heinzelmann, G.
    Henri, G.
    Hermann, G.
    Hinton, J. A.
    Hoffmann, A.
    Hofmann, W.
    Hofverberg, P.
    Holleran, M.
    Hoppe, S.
    Horns, D.
    Jacholkowska, A.
    de Jager, O. C.
    Jahn, C.
    Jung, I.
    Katarzynski, K.
    Katz, U.
    Kaufmann, S.
    Kerschhaggl, M.
    Khangulyan, D.
    Khelifi, B.
    Keogh, D.
    Klochkov, D.
    Kluzniak, W.
    Kneiske, T.
    Komin, Nu.
    Kosack, K.
    Kossakowski, R.
    Lamanna, G.
    Lenain, J. -P
    Lohse, T.
    Marandon, V.
    Martineau-Huynh, O.
    Marcowith, A.
    Masbou, J.
    Maurin, D.
    McComb, T. J. L.
    Medina, M. C.
    Mehault, J.
    Moderski, R.
    Moulin, E.
    Naumann-Godo, M.
    de Naurois, M.
    Nedbal, D.
    Nekrassov, D.
    Nicholas, B.
    Niemiec, J.
    Nolan, S. J.
    Ohm, S.
    Olive, J-F
    Wilhelmi, E. de Ona
    Orford, K. J.
    Ostrowski, M.
    Panter, M.
    Arribas, M. Paz
    Pedaletti, G.
    Pelletier, G.
    Petrucci, P. -O
    Pita, S.
    Puehlhofer, G.
    Punch, M.
    Univ Paris Diderot, APC, AstroParticule & Cosmology, CNRS,IN2P3,CEA,Irfu, Observ Paris,Sorbonne Paris C, 10 Rue Alice Domon & Leonie Duquet, F-75205 Paris 13, France.
    Quirrenbach, A.
    Raubenheimer, B. C.
    Raue, M.
    Rayner, S. M.
    Reimer, O.
    Renaud, M.
    Rieger, F.
    Ripken, J.
    Rob, L.
    Rosier-Lees, S.
    Rowell, G.
    Rudak, B.
    Rulten, C. B.
    Ruppel, J.
    Ryde, F.
    Sahakian, V.
    Santangelo, A.
    Schlickeiser, R.
    Schoeck, F. M.
    Schoenwald, A.
    Schwanke, U.
    Schwarzburg, S.
    Schwemmer, S.
    Shalchi, A.
    Sikora, M.
    Skilton, J. L.
    Sol, H.
    Stawarz, L.
    Steenkamp, R.
    Stegmann, C.
    Stinzing, F.
    Superina, G.
    Sushch, I.
    Szostek, A.
    Tam, P. H.
    Tavernet, J. -P
    Terrier, R.
    Tibolla, O.
    Tluczykont, M.
    van Eldik, C.
    Vasileiadis, G.
    Venter, C.
    Venter, L.
    Vialle, J. P.
    Vincent, P.
    Vivier, M.
    Voelk, H. J.
    Volpe, F.
    Wagner, S. J.
    Ward, M.
    Zdziarski, A. A.
    Zech, A.
    Localizing the VHE gamma-ray source at the Galactic Centre2010In: Monthly notices of the Royal Astronomical Society, ISSN 0035-8711, E-ISSN 1365-2966, Vol. 402, no 3, p. 1877-1882Article in journal (Refereed)
    Abstract [en]

    The inner 10 pc of our Galaxy contains many counterpart candidates of the very high energy (VHE; > 100 GeV) gamma-ray point source HESS J1745-290. Within the point spread function of the H.E.S.S. measurement, at least three objects are capable of accelerating particles to VHE and beyond and of providing the observed gamma-ray flux. Previous attempts to address this source confusion were hampered by the fact that the projected distances between these objects were of the order of the error circle radius of the emission centroid (34 arcsec, dominated by the pointing uncertainty of the H.E.S.S. instrument). Here we present H.E.S.S. data of the Galactic Centre region, recorded with an improved control of the instrument pointing compared to H.E.S.S. standard pointing procedures. Stars observed during gamma-ray observations by optical guiding cameras mounted on each H.E.S.S. telescope are used for off-line pointing calibration, thereby decreasing the systematic pointing uncertainties from 20 to 6 arcsec per axis. The position of HESS J1745-290 is obtained by fitting a multi-Gaussian profile to the background-subtracted gamma-ray count map. A spatial comparison of the best-fitting position of HESS J1745-290 with the position and morphology of candidate counterparts is performed. The position is, within a total error circle radius of 13 arcsec, coincident with the position of the supermassive black hole Sgr A* and the recently discovered pulsar wind nebula candidate G359.95-0.04. It is significantly displaced from the centroid of the supernova remnant Sgr A East, excluding this object with high probability as the dominant source of the VHE gamma-ray emission.

  • 175. Acero, F.
    et al.
    Aharonian, F.
    Akhperjanian, A. G.
    Anton, G.
    de Almeida, U. Barres
    Bazer-Bachi, A. R.
    Becherini, Yvonne
    Université Paris 7 Denis Diderot.
    Behera, B.
    Bernloehr, K.
    Bochow, A.
    Boisson, C.
    Bolmont, J.
    Borrel, V.
    Brucker, J.
    Brun, F.
    Brun, P.
    Buehler, R.
    Bulik, T.
    Buesching, I.
    Boutelier, T.
    Chadwick, P. M.
    Charbonnier, A.
    Chaves, R. C. G.
    Cheesebrough, A.
    Chounet, L. -M
    Clapson, A. C.
    Coignet, G.
    Dalton, M.
    Daniel, M. K.
    Davids, I. D.
    Degrange, B.
    Deil, C.
    Dickinson, H. J.
    Djannati-Atai, A.
    Domainko, W.
    Drury, L. O 'C.
    Dubois, F.
    Dubus, G.
    Dyks, J.
    Dyrda, M.
    Egberts, K.
    Emmanoulopoulos, D.
    Espigat, P.
    Farnier, C.
    Fegan, S.
    Feinstein, F.
    Fiasson, A.
    Foerster, A.
    Fontaine, G.
    Fuessling, M.
    Gabici, S.
    Gallant, Y. A.
    Gerard, L.
    Gerbig, D.
    Giebels, B.
    Glicenstein, J. F.
    Glueck, B.
    Goret, P.
    Goering, D.
    Hauser, D.
    Hauser, M.
    Heinz, S.
    Heinzelmann, G.
    Henri, G.
    Hermann, G.
    Hinton, J. A.
    Hoffmann, A.
    Hofmann, W.
    Hofverberg, P.
    Hoppe, S.
    Horns, D.
    Jacholkowska, A.
    de Jager, O. C.
    Jahn, C.
    Jung, I.
    Katarzynski, K.
    Katz, U.
    Kaufmann, S.
    Kerschhaggl, M.
    Khangulyan, D.
    Khelifi, B.
    Keogh, D.
    Klochkov, D.
    Kluzniak, W.
    Kneiske, T.
    Komin, Nu.
    Kosack, K.
    Kossakowski, R.
    Lamanna, G.
    Lenain, J. -P
    Lohse, T.
    Marandon, V.
    Martineau-Huynh, O.
    Marcowith, A.
    Masbou, J.
    Maurin, D.
    McComb, T. J. L.
    Medina, M. C.
    Mehault, J.
    Moderski, R.
    Moulin, E.
    Naumann-Godo, M.
    de Naurois, M.
    Nedbal, D.
    Nekrassov, D.
    Nicholas, B.
    Niemiec, J.
    Nolan, S. J.
    Ohm, S.
    Olive, J-F
    Wilhelmi, E. de Ona
    Orford, K. J.
    Ostrowski, M.
    Panter, M.
    Arribas, M. Paz
    Pedaletti, G.
    Pelletier, G.
    Petrucci, P. -O
    Pita, S.
    Puehlhofer, G.
    Punch, M.
    Univ Paris Diderot, APC, AstroParticule & Cosmology, CNRS,IN2P3,CEA,Irfu, Observ Paris,Sorbonne Paris C, 10 Rue Alice Domon & Leonie Duquet, F-75205 Paris 13, France.
    Quirrenbach, A.
    Raubenheimer, B. C.
    Raue, M.
    Rayner, S. M.
    Reimer, O.
    Renaud, M.
    Rieger, F.
    Ripken, J.
    Rob, L.
    Rosier-Lees, S.
    Rowell, G.
    Rudak, B.
    Rulten, C. B.
    Ruppel, J.
    Sahakian, V.
    Santangelo, A.
    Schlickeiser, R.
    Schoeck, F. M.
    Schwanke, U.
    Schwarzburg, S.
    Schwemmer, S.
    Shalchi, A.
    Sikora, M.
    Skilton, J. L.
    Sol, H.
    Stawarz, L.
    Steenkamp, R.
    Stegmann, C.
    Stinzing, F.
    Superina, G.
    Szostek, A.
    Tam, P. H.
    Tavernet, J. -P
    Terrier, R.
    Tibolla, O.
    Tluczykont, M.
    van Eldik, C.
    Vasileiadis, G.
    Venter, C.
    Venter, L.
    Vialle, J. P.
    Vincent, P.
    Vivier, M.
    Voelk, H. J.
    Volpe, F.
    Wagner, S. J.
    Ward, M.
    Zdziarski, A. A.
    Zech, A.
    Detection of Gamma Rays from a Starburst Galaxy2009In: Science, ISSN 0036-8075, E-ISSN 1095-9203, Vol. 326, no 5956, p. 1080-1082Article in journal (Refereed)
    Abstract [en]

    Starburst galaxies exhibit in their central regions a highly increased rate of supernovae, the remnants of which are thought to accelerate energetic cosmic rays up to energies of similar to 10(15) electron volts. We report the detection of gamma rays-tracers of such cosmic rays-from the starburst galaxy NGC 253 using the High Energy Stereoscopic System (H. E. S. S.) array of imaging atmospheric Cherenkov telescopes. The gamma-ray flux above 220 billion electron volts is F = (5.5 +/- 1.0(stat) +/- 2.8(sys)) x 10(-13) cm(-2) s(-1), implying a cosmic-ray density about three orders of magnitude larger than that in the center of the Milky Way. The fraction of cosmic-ray energy channeled into gamma rays in this starburst environment is five times as large as that in our Galaxy.

  • 176. Acero, F.
    et al.
    Aharonian, F.
    Akhperjanian, A. G.
    Anton, G.
    de Almeida, U. Barres
    Bazer-Bachi, A. R.
    Becherini, Yvonne
    Behera, B.
    Bernloehr, K.
    Bochow, A.
    Boisson, C.
    Bolmont, J.
    Borrel, V.
    Brucker, J.
    Brun, F.
    Brun, P.
    Buehler, R.
    Bulik, T.
    Buesching, I.
    Boutelier, T.
    Chadwick, P. M.
    Charbonnier, A.
    Chaves, R. C. G.
    Cheesebrough, A.
    Chounet, L. -M
    Clapson, A. C.
    Coignet, G.
    Dalton, M.
    Daniel, M. K.
    Davids, I. D.
    Degrange, B.
    Deil, C.
    Dickinson, H. J.
    Djannati-Atai, A.
    Domainko, W.
    Drury, L. O 'C.
    Dubois, F.
    Dubus, G.
    Dyks, J.
    Dyrda, M.
    Egberts, K.
    Emmanoulopoulos, D.
    Espigat, P.
    Farnier, C.
    Feinstein, F.
    Fiasson, A.
    Foerster, A.
    Fontaine, G.
    Fuessling, M.
    Gabici, S.
    Gallant, Y. A.
    Gerard, L.
    Gerbig, D.
    Giebels, B.
    Glicenstein, J. F.
    Glueck, B.
    Goret, P.
    Goering, D.
    Hauser, D.
    Hauser, M.
    Heinz, S.
    Heinzelmann, G.
    Henri, G.
    Hermann, G.
    Hinton, J. A.
    Hoffmann, A.
    Hofmann, W.
    Holleran, M.
    Hoppe, S.
    Horns, D.
    Jacholkowska, A.
    de Jager, O. C.
    Jahn, C.
    Jung, I.
    Katarzynski, K.
    Katz, U.
    Kaufmann, S.
    Kerschhaggl, M.
    Khangulyan, D.
    Khelifi, B.
    Keogh, D.
    Klochkov, D.
    Kluzniak, W.
    Kneiske, T.
    Komin, Nu.
    Kosack, K.
    Kossakowski, R.
    Lamanna, G.
    Lenain, J. -P
    Lohse, T.
    Marandon, V.
    Martineau-Huynh, O.
    Marcowith, A.
    Masbou, J.
    Maurin, D.
    McComb, T. J. L.
    Medina, M. C.
    Mehault, J.
    Moderski, R.
    Moulin, E.
    Naumann-Godo, M.
    de Naurois, M.
    Nedbal, D.
    Nekrassov, D.
    Nicholas, B.
    Niemiec, J.
    Nolan, S. J.
    Ohm, S.
    Olive, J. -F
    Wilhelmi, E. de Ona
    Orford, K. J.
    Ostrowski, M.
    Panter, M.
    Arribas, M. Paz
    Pedaletti, G.
    Pelletier, G.
    Petrucci, P. -O
    Pita, S.
    Puehlhofer, G.
    Punch, Michael
    Univ Paris Diderot, APC, AstroParticule & Cosmology, CNRS,IN2P3,CEA,Irfu, Observ Paris,Sorbonne Paris C, 10 Rue Alice Domon & Leonie Duquet, F-75205 Paris 13, France.
    Quirrenbach, A.
    Raubenheimer, B. C.
    Raue, M.
    Rayner, S. M.
    Reimer, O.
    Renaud, M.
    Rieger, F.
    Ripken, J.
    Rob, L.
    Rosier-Lees, S.
    Rowell, G.
    Rudak, B.
    Rulten, C. B.
    Ruppel, J.
    Sahakian, V.
    Santangelo, A.
    Schlickeiser, R.
    Schoeck, F. M.
    Schwanke, U.
    Schwarzburg, S.
    Schwemmer, S.
    Shalchi, A.
    Sikora, M.
    Skilton, J. L.
    Sol, H.
    Stawarz, L.
    Steenkamp, R.
    Stegmann, C.
    Stinzing, F.
    Superina, G.
    Szostek, A.
    Tam, P. H.
    Tavernet, J. -P
    Terrier, R.
    Tibolla, O.
    Tluczykont, M.
    van Eldik, C.
    Vasileiadis, G.
    Venter, C.
    Venter, L.
    Vialle, J. P.
    Vincent, P.
    Vivier, M.
    Voelk, H. J.
    Volpe, F.
    Wagner, S. J.
    Ward, M.
    Zdziarski, A. A.
    Zech, A.
    Discovery and follow-up studies of the extended, off-plane, VHE gamma-ray source HESS J1507-6222011In: Astronomy and Astrophysics, ISSN 0004-6361, E-ISSN 1432-0746, Vol. 525, p. A45-Article in journal (Refereed)
    Abstract [en]

    Context. The detection of gamma-rays in the very-high-energy (VHE) range (100 GeV-100 TeV) offers the possibility of studying the parent population of ultrarelativistic particles found in astrophysical sources, so it is useful for understanding the underlying astrophysical processes in nonthermal sources. Aims. The discovery of the VHE gamma-ray source HESS J1507-622 is reported and possibilities regarding its nature are investigated. Methods. The H. E. S. S. array of imaging atmospheric Cherenkov telescopes (IACTs) has a high sensitivity compared with previous instruments (similar to 1% of the Crab flux in 25 h observation time for a 5 sigma point-source detection) and has a large field of view (similar to 5 degrees in diameter). HESS J1507-622 was discovered within the ongoing H. E. S. S. survey of the inner Galaxy, and the source was also studied by means of dedicated multiwavelength observations. Results. A Galactic gamma-ray source, HESS J1507-622, located similar to 3.5 degrees. from the Galactic plane was detected with a statistical significance >9 sigma. Its energy spectrum is well fitted by a power law with spectral index Gamma = 2.24 +/- 0.16(stat) +/- 0.20(sys) and a flux above 1 TeV of (1.5 +/- 0.4(stat) +/- 0.3(sys)) x 10(-12) cm(-2) s(-1). Possible interpretations (considering both hadronic and leptonic models) of the VHE gamma-ray emission are discussed in the absence of an obvious counterpart.

  • 177. Acero, F.
    et al.
    Aharonian, F.
    Akhperjanian, A. G.
    Anton, G.
    de Almeida, U. Barres
    Bazer-Bachi, A. R.
    Becherini, Yvonne
    Behera, B.
    Bernloehr, K.
    Bochow, A.
    Boisson, C.
    Bolmont, J.
    Borrel, V.
    Brucker, J.
    Brun, F.
    Brun, P.
    Bulik, T.
    Buesching, I.
    Boutelier, T.
    Chadwick, P. M.
    Charbonnier, A.
    Chaves, R. C. G.
    Cheesebrough, A.
    Conrad, J.
    Chounet, L. -M
    Clapson, A. C.
    Coignet, G.
    Dalton, M.
    Daniel, M. K.
    Davids, I. D.
    Degrange, B.
    Deil, C.
    Dickinson, H. J.
    Djannati-Atai, A.
    Domainko, W.
    Drury, L. O 'C.
    Dubois, F.
    Dubus, G.
    Dyks, J.
    Dyrda, M.
    Egberts, K.
    Eger, P.
    Espigat, P.
    Fallon, L.
    Farnier, C.
    Fegan, S.
    Feinstein, F.
    Fiasson, A.
    Foerster, A.
    Fontaine, G.
    Fuessling, M.
    Gabici, S.
    Gallant, Y. A.
    Gerard, L.
    Gerbig, D.
    Giebels, B.
    Glicenstein, J. F.
    Glueck, B.
    Goret, P.
    Goering, D.
    Hauser, M.
    Heinz, S.
    Heinzelmann, G.
    Henri, G.
    Hermann, G.
    Hinton, J. A.
    Hoffmann, A.
    Hofmann, W.
    Hofverberg, P.
    Holleran, M.
    Hoppe, S.
    Horns, D.
    Jacholkowska, A.
    de Jager, O. C.
    Jahn, C.
    Jung, I.
    Katarzynski, K.
    Katz, U.
    Kaufmann, S.
    Kerschhaggl, M.
    Khangulyan, D.
    Khelifi, B.
    Keogh, D.
    Klochkov, D.
    Kluzniak, W.
    Kneiske, T.
    Komin, Nu.
    Kosack, K.
    Kossakowski, R.
    Lamanna, G.
    Lenain, J. -P
    Lohse, T.
    Marandon, V.
    Marcowith, A.
    Masbou, J.
    Maurin, D.
    McComb, T. J. L.
    Medina, M. C.
    Mehault, J.
    Moderski, R.
    Moulin, E.
    Naumann-Godo, M.
    de Naurois, M.
    Nedbal, D.
    Nekrassov, D.
    Nicholas, B.
    Niemiec, J.
    Nolan, S. J.
    Ohm, S.
    Olive, J-F
    Wilhelmi, E. de Ona
    Orford, K. J.
    Ostrowski, M.
    Panter, M.
    Arribas, M. Paz
    Pedaletti, G.
    Pelletier, G.
    Petrucci, P. -O
    Pita, S.
    Puehlhofer, G.
    Punch, M.
    Univ Paris Diderot, APC, AstroParticule & Cosmology, CNRS,IN2P3,CEA,Irfu, Observ Paris,Sorbonne Paris C, 10 Rue Alice Domon & Leonie Duquet, F-75205 Paris 13, France.
    Quirrenbach, A.
    Raubenheimer, B. C.
    Raue, M.
    Rayner, S. M.
    Reimer, O.
    Renaud, M.
    de los Reyes, R.
    Rieger, F.
    Ripken, J.
    Rob, L.
    Rosier-Lees, S.
    Rowell, G.
    Rudak, B.
    Rulten, C. B.
    Ruppel, J.
    Ryde, F.
    Sahakian, V.
    Santangelo, A.
    Schlickeiser, R.
    Schoeck, F. M.
    Schoenwald, A.
    Schwanke, U.
    Schwarzburg, S.
    Schwemmer, S.
    Shalchi, A.
    Sushch, I.
    Sikora, M.
    Skilton, J. L.
    Sol, H.
    Stawarz, L.
    Steenkamp, R.
    Stegmann, C.
    Stinzing, F.
    Superina, G.
    Szostek, A.
    Tam, P. H.
    Tavernet, J. -P
    Terrier, R.
    Tibolla, O.
    Tluczykont, M.
    van Eldik, C.
    Vasileiadis, G.
    Venter, C.
    Venter, L.
    Vialle, J. P.
    Vincent, P.
    Vivier, M.
    Voelk, H. J.
    Volpe, F.
    Vorobiov, S.
    Wagner, S. J.
    Ward, M.
    Zdziarski, A. A.
    Zech, A.
    HESS upper limits on very high energy gamma-ray emission from the microquasar GRS 1915+1052009In: Astronomy and Astrophysics, ISSN 0004-6361, E-ISSN 1432-0746, Vol. 508, no 3, p. 1135-1140Article in journal (Refereed)
    Abstract [en]

    Context. High energy particles reside in the relativistic jets of microquasars, making them possible sources of very high energy radiation (VHE, > 100 GeV). Detecting this emission would provide a new handle on jet physics. Aims. Observations of the microquasar GRS 1915+105 with the HESS telescope array were undertaken in 2004-2008 to search for VHE emission. Methods. Stereoscopic imaging of Cherenkov radiation from extensive air showers is used to reconstruct the energy and direction of the incident gamma rays. Results. There is no evidence for a VHE gamma-ray signal either from the direction of the microquasar or its vicinity. An upper limit of 6.1 x 10(-13) ph cm(-2) s(-1) (99.9% confidence level) is set on the photon flux above 410 GeV, equivalent to a VHE luminosity of similar to 10(34) erg s(-1) at 11 kpc. Conclusions. The VHE to X-ray luminosity ratio in GRS 1915+105 is at least four orders of magnitude lower than the ratio observed in gamma-ray binaries. The VHE radiative efficiency of the compact jet is less than 0.01% based on its estimated total power of 10(38) erg s(-1). Particle acceleration in GRS 1915+105 is not efficient at high energies and/or the magnetic field is too strong. It is also possible that VHE gamma-rays are produced by GRS 1915+105, but the emission is highly time-dependent.

  • 178.
    Acero, F.
    et al.
    CEA Saclay, France.
    Aloisio, R.
    Arcetri Observatory, Italy ; University of L'Aquila, Italy ; Gran Sasso Science Institute, Italy.
    Amans, J.
    Paris Observatory, France.
    Amato, E.
    Arcetri Observatory, Italy.
    Antonelli, L. A.
    Rome Observatory, Italy.
    Aramo, C.
    INFN Sezione di Napoli, Italy.
    Armstrong, T.
    Durham University, UK.
    Arqueros, F.
    Complutense University of Madrid, Spain.
    Asano, K.
    University of Tokyo, Japan.
    Ashley, M.
    University of New South Wales, Australia.
    Backes, M.
    Univ Namibia, Namibia.
    Balazs, C.
    Monash Univ, Australia.
    Balzer, A.
    Univ Amsterdam, Netherlands.
    Bamba, A.
    Univ Tokyo, Japan.
    Barkov, M.
    RIKEN, Inst Phys & Chem Res, Hirosawa, Wako, Saitama 3510198, Japan..
    Barrio, J. A.
    Univ Complutense Madrid, Grp Altas Energias, Av Complutense, Madrid, Spain..
    Benbow, W.
    Harvard Smithsonian Ctr Astrophys, 60 Garden St, Cambridge, MA 02180 USA..
    Bernloehr, K.
    Max Planck Inst Kernphys, Saupfercheckweg 1, Heidelberg, Germany..
    Beshley, V.
    Inst Appl Problems Mech & Math, 3B Naukova St, Lvov, Ukraine..
    Bigongiari, C.
    Osserv Astron Torino, INAF, Corso Fiume 4, Turin, Italy..
    Biland, A.
    Swiss Fed Inst Technol, Inst Particle Phys, Schafmattstr 20, Zurich, Switzerland..
    Bilinsky, A.
    Ivan Franko Natl Univ Lviv, Astron Observ, 1 Univ Ska St, UA-79000 City Of Lviv, Ukraine..
    Bissaldi, E.
    Politecn Bari, Bari, Italy.;INFN Bari, Bari, Italy..
    Biteau, J.
    Univ Paris 11, IPNO, IN2P3, CNRS, 15 Rue Georges Clemenceau, Orsay, France.;Univ Paris 11, UMR 8608, 15 Rue Georges Clemenceau, Orsay, France..
    Blanch, O.
    IFAE, Barcelona Inst Sci & Technol, Campus UAB, Bellaterra, Barcelona, Spain..
    Blasi, P.
    Osserv Astrofis Arcetri, Largo E Fermi 5, Florence, Italy..
    Blazek, J.
    Acad Sci Czech Republic, Inst Phys, Slovance, Prague 18221 8, Czech Republic..
    Boisson, C.
    Observ Paris, CNRS, LUTH, 5 Pl Jules Janssen, Meudon, France.;Observ Paris, CNRS, GEPI, 5 Pl Jules Janssen, Meudon, France..
    Bonanno, G.
    INAF Osservatorio Astrofis Catania, Via S Sofia 78, Catania, Italy..
    Bonardi, A.
    Radboud Univ Nijmegen, POB 9010, GL Nijmegen, Netherlands..
    Bonavolonta, C.
    Ist Nazl Fis Nucl, Sez Napoli, Via Cintia,Ed G, Naples, Italy..
    Bonnoli, G.
    INAF Osservatorio Astron Brera, Via Brera 28, Milan, Italy..
    Braiding, C.
    Univ New South Wales, Sch Phys, Sydney, NSW 2052, Australia..
    Brau-Nogue, S.
    IRAP, 9 Ave Colonel Roche,BP 44346, Toulouse 4, France..
    Bregeon, J.
    Univ Montpellier, CNRS, IN2P3, Lab Univers & Particules Montpellier, CC 72,Pl Eugene Bataillon, Montpellier 5, France..
    Brown, A. M.
    Univ Durham, Dept Phys, South Rd, Durham DH1 3LE, UK;Univ Durham, Ctr Adv Instrumentat, South Rd, Durham DH1 3LE, UK.
    Bugaev, V.
    Washington Univ, Dept Phys, St Louis, MO 63130 USA..
    Bulgarelli, A.
    Ist Astrofis Spaziale & Fis Cosm Bologna, Via Piero Gobetti 101, Bologna, Italy..
    Bulik, T.
    Univ Warsaw, Fac Phys, Ul Hoza 69, Warsaw, Poland..
    Burton, M.
    Univ New South Wales, Sch Phys, Sydney, NSW 2052, Australia..
    Burtovoi, A.
    INAF Osservatorio Astron Padova, Vicolo Osservatorio 5, Padua, Italy..
    Busetto, G.
    Univ Padua, Dipartimento Fis, Via Marzolo 8, Padua, Italy..
    Bottcher, M.
    North West Univ, Ctr Space Res, Potchefstroom Campus, Potchefstroom, South Africa..
    Cameron, R.
    Stanford Univ, Dept Phys, Kavli Inst Particle Astrophys & Cosmol, 2575 Sand Hill Rd, Menlo Pk, CA 94025 USA.;Stanford Univ, Dept Phys, SLAC Natl Accelerator Lab, 2575 Sand Hill Rd, Menlo Pk, CA 94025 USA..
    Capalbi, M.
    INAF Ist Astrofis Spaziale & Fis Cosm Palermo, Via U La Malfa 153, Palermo, Italy..
    Caproni, A.
    UCS, NAT, Rua Galvao Bueno 8687,Bloco B,Sala 16, Sao Paulo, Brazil..
    Caraveo, P.
    Ist Astrofis Spaziale & Fis Cosm, Via Bassini 15, Milan, Italy..
    Carosi, R.
    Ist Nazl Fis Nucl, Sez Pisa, Largo Pontecorvo 3, Pisa, Italy..
    Cascone, E.
    INAF Osservatorio Astron Brera, Via Brera 28, Milan, Italy..
    Cerruti, M.
    Harvard Smithsonian Ctr Astrophys, 60 Garden St, Cambridge, MA 02180 USA..
    Chaty, S.
    CEA Saclay, CEA, IRFU, SAp, Bat 709, Gif Sur Yvette, France..
    Chen, A.
    Univ Witwatersrand, 1 Jan Smuts Ave, Johannesburg, South Africa..
    Chen, X.
    Pontificia Univ Catolica Chile, Avda Libertador Bernardo OHiggins 340, Santiago, Chile..
    Chernyakova, M.
    Dublin City Univ, Dublin 9, Ireland..
    Chikawa, M.
    Kindai Univ, Dept Phys, Higashiosaka, Osaka 5778502, Japan..
    Chudoba, J.
    Acad Sci Czech Republic, Inst Phys, Slovance, Prague 18221 8, Czech Republic..
    Cohen-Tanugi, J.
    Univ Montpellier, CNRS, IN2P3, Lab Univers & Particules Montpellier, CC 72,Pl Eugene Bataillon, Montpellier 5, France..
    Colafrancesco, S.
    Univ Witwatersrand, 1 Jan Smuts Ave, Johannesburg, South Africa..
    Conforti, V.
    Ist Astrofis Spaziale & Fis Cosm Bologna, Via Piero Gobetti 101, Bologna, Italy..
    Contreras, J. L.
    Univ Complutense Madrid, Grp Altas Energias, Av Complutense, Madrid, Spain..
    Costa, A.
    INAF Osservatorio Astrofis Catania, Via S Sofia 78, Catania, Italy..
    Cotter, G.
    Univ Oxford, Dept Phys, 1 Keble Rd, Oxford OX1 3NP, UK.
    Covino, S.
    INAF Osservatorio Astron Brera, Via Brera 28, Milan, Italy..
    Covone, G.
    Ist Nazl Fis Nucl, Sez Napoli, Via Cintia,Ed G, Naples, Italy..
    Cumani, P.
    IFAE, Barcelona Inst Sci & Technol, Campus UAB, Bellaterra, Barcelona, Spain..
    Cusumano, G.
    INAF Ist Astrofis Spaziale & Fis Cosm Palermo, Via U La Malfa 153, Palermo, Italy..
    D'Ammando, F.
    INAF IRA, INAF, Ist Radioastron, Via Gobetti 101, Bologna, Italy..
    D'Urso, D.
    INFN, Sez Perugia, Via A Pascoli, Perugia, Italy..
    Daniel, M.
    Harvard Smithsonian Ctr Astrophys, 60 Garden St, Cambridge, MA 02180 USA..
    Dazzi, F.
    Cherenkov Telescope Array Observ, Saupfercheckweg 1, Heidelberg, Germany..
    De Angelis, A.
    Univ Padua, Dipartimento Fis, Via Marzolo 8, Padua, Italy..
    De Cesare, G.
    Ist Astrofis Spaziale & Fis Cosm Bologna, Via Piero Gobetti 101, Bologna, Italy..
    De Franco, A.
    Univ Oxford, Dept Phys, 1 Keble Rd, Oxford OX1 3NP, UK.
    De Frondat, F.
    Observ Paris, CNRS, LUTH, 5 Pl Jules Janssen, Meudon, France.;Observ Paris, CNRS, GEPI, 5 Pl Jules Janssen, Meudon, France..
    Dal Pino, E. M. de Gouveia
    Univ Sao Paulo, Inst Astron Geofis & Ciencias Atmosfer, R Matao 1226, Sao Paulo, Brazil..
    De Lisio, C.
    Ist Nazl Fis Nucl, Sez Napoli, Via Cintia,Ed G, Naples, Italy..
    Lopez, R. de los Reyes
    Max Planck Inst Kernphys, Saupfercheckweg 1, Heidelberg, Germany..
    De Lotto, B.
    Univ Udine, Via Sci 208, Udine, Italy.;INFN, Sez Trieste, Via Sci 208, Udine, Italy..
    de Naurois, M.
    Ecole Polytech, CNRS, UMR 7638, Lab Leprince Ringuet, Palaiseau, France..
    De Palma, F.
    INFN, Sez Bari, Via Orabona 4, Bari, Italy..
    Del Santo, M.
    INAF Ist Astrofis Spaziale & Fis Cosm Palermo, Via U La Malfa 153, Palermo, Italy..
    Delgado, C.
    CIEMAT, Avda Complutense 40, Madrid, Spain..
    della Volpe, D.
    Univ Geneva, Dept Phys Nucl & Corpusculaire, 24 Rue Gen Dufour, Geneva 4, Switzerland..
    Di Girolamo, T.
    Ist Nazl Fis Nucl, Sez Napoli, Via Cintia,Ed G, Naples, Italy..
    Di Giulio, C.
    INFN, Sez Roma Tor Vergata, Via Ric Sci 1, Rome, Italy..
    Di Pierro, F.
    Ist Nazl Fis Nucl, Sez Torino, Via P Giuria 1, Turin, Italy..
    Di Venere, L.
    Univ Bari, Bari, Italy.;INFN Bari, Bari, Italy..
    Doro, M.
    Univ Padua, Dipartimento Fis, Via Marzolo 8, Padua, Italy..
    Dournaux, J.
    Observ Paris, CNRS, LUTH, 5 Pl Jules Janssen, Meudon, France.;Observ Paris, CNRS, GEPI, 5 Pl Jules Janssen, Meudon, France..
    Dumas, D.
    Observ Paris, CNRS, LUTH, 5 Pl Jules Janssen, Meudon, France.;Observ Paris, CNRS, GEPI, 5 Pl Jules Janssen, Meudon, France..
    Dwarkadas, V.
    Univ Chicago, Enrico Fermi Inst, 5640 South Ellis Ave, Chicago, IL 60637 USA..
    Diaz, C.
    CIEMAT, Avda Complutense 40, Madrid, Spain..
    Ebr, J.
    Acad Sci Czech Republic, Inst Phys, Slovance, Prague 18221 8, Czech Republic..
    Egberts, K.
    Univ Potsdam, Inst Phys & Astron, Golm, Germany..
    Einecke, S.
    TU Dortmund Univ, Dept Phys, Otto Hahn Str 4, Dortmund, Germany..
    Elsaesser, D.
    Univ Wurzburg, Inst Theoret Phys & Astrophys, Campus Hubland Nord,Emil Fischer Str 31, Wurzburg, Germany..
    Eschbach, S.
    Univ Erlangen Nurnberg, Inst Phys, Erwin Rommel Str 1, Erlangen, Germany..
    Falceta-Goncalves, D.
    Univ Sao Paulo, Escola Arles Ciencias & Humanidades, Rua Arlindo Bettio 1000, Sao Paulo, Brazil..
    Fasola, G.
    Observ Paris, CNRS, LUTH, 5 Pl Jules Janssen, Meudon, France.;Observ Paris, CNRS, GEPI, 5 Pl Jules Janssen, Meudon, France..
    Fedorova, E.
    Taras Shevchenko Natl Univ Kyiv, Astron Observ, 60 Volodymyrska St, Kiev, Ukraine..
    Fernandez-Barral, A.
    IFAE, Barcelona Inst Sci & Technol, Campus UAB, Bellaterra, Barcelona, Spain..
    Ferrand, G.
    RIKEN, Inst Phys & Chem Res, Hirosawa, Wako, Saitama 3510198, Japan..
    Fesquet, M.
    CEA Saclay, CEA, IRFU, SEDI, Bat 141, Gif Sur Yvette, France..
    Fiandrini, E.
    INFN, Sez Perugia, Via A Pascoli, Perugia, Italy..
    Fiasson, A.
    Univ Savoie, CNRS, IN2P3, Lab Annecy le Vieux Phys Particules, 9 Chemin Bellevue BP 110, Annecy Le Vieux, France..
    Filipovic, M. D.
    Western Sydney Univ, Locked Bag 1797, Penrith, NSW 2751, Australia..
    Fioretti, V.
    Ist Astrofis Spaziale & Fis Cosm Bologna, Via Piero Gobetti 101, Bologna, Italy..
    Font, L.
    Univ Autonoma Barcelona, Dept Fis, Unitat Fis Radiac, Bellaterra, Spain.;Univ Autonoma Barcelona, CERES IEEC, Bellaterra, Spain.;Edifici Cc,Campus UAB, Bellaterra, Spain..
    Fontaine, G.
    Ecole Polytech, CNRS, UMR 7638, Lab Leprince Ringuet, Palaiseau, France..
    Franco, F. J.
    Univ Complutense Madrid, Grp Elect, Ave Complutense Madrid, Spain..
    Freixas Coromina, L.
    CIEMAT, Avda Complutense 40, Madrid, Spain..
    Fujita, Y.
    Osaka Univ, Grad Sch Sci, Dept Earth & Space Sci, Toyonaka, Osaka 5600043, Japan..
    Fukui, Y.
    Nagoya Univ, Dept Phys & Astrophys, Chikusa Ku, Nagoya, Aichi 4648602, Japan..
    Funk, S.
    Univ Erlangen Nurnberg, Inst Phys, Erwin Rommel Str 1, Erlangen, Germany..
    Forster, A.
    Max Planck Inst Kernphys, Saupfercheckweg 1, Heidelberg, Germany..
    Gadola, A.
    Univ Zurich, Inst Phys, Winterthurerstr 190, Zurich, Switzerland..
    Lopez, R. Garcia
    Inst Astrofis Canarias, Via Lactea, Tenerife, Spain..
    Garczarczyk, M.
    DESY, Platanenallee 6, Zeuthen, Germany..
    Giglietto, N.
    Politecn Bari, Bari, Italy.;INFN Bari, Bari, Italy..
    Giordano, F.
    Univ Bari, Bari, Italy.;INFN Bari, Bari, Italy..
    Giuliani, A.
    Ist Astrofis Spaziale & Fis Cosm, Via Bassini 15, Milan, Italy..
    Glicenstein, J.
    CEA Saclay, CEA, IRFU, SPP, Bat 141, Gif Sur Yvette, France..
    Gnatyk, R.
    Taras Shevchenko Natl Univ Kyiv, Astron Observ, 60 Volodymyrska St, Kiev, Ukraine..
    Goldoni, P.
    Univ Paris Diderot, APC, CNRS IN2P3, CEA Irfu,Obs Paris,Sorbonne Paris Cite, 10 Rue Alice Domon & Leonie Duquet, Paris 13, France..
    Grabarczyk, T.
    Acad Comp Ctr CYFRONET AGH, Ul Nawojki 11, Krakow, Poland..
    Graciani, R.
    Univ Barcelona, Inst Ciencies Cosmos, IEEC UB, Dept Fis Quant & Astrofis, Marti & Franques 1, Barcelona, Spain..
    Graham, J.
    Univ Durham, Dept Phys, South Rd, Durham DH1 3LE, UK;Univ Durham, Ctr Adv Instrumentat, South Rd, Durham DH1 3LE, UK.
    Grandi, P.
    Ist Astrofis Spaziale & Fis Cosm Bologna, Via Piero Gobetti 101, Bologna, Italy..
    Granot, J.
    Open Univ Israel, Dept Nat Sci, 1 Univ Rd,POB 808, Raanana, Israel..
    Green, A. J.
    Univ Sydney, Sch Phys, Sydney Inst Astron, Sydney, NSW 2006, Australia..
    Griffiths, S.
    IFAE, Barcelona Inst Sci & Technol, Campus UAB, Bellaterra, Barcelona, Spain..
    Gunji, S.
    Yamagata Univ, Dept Phys, Yamagata, Yamagata 9908560, Japan..
    Hakobyan, H.
    Univ Tecn Federico Santa Maria, Ave Espana 1680, Valparaiso, Chile..
    Hara, S.
    Yamanashi Gakuin Univ, Fac Management Informat, Kofu, Yamanashi 4008575, Japan..
    Hassan, T.
    IFAE, Barcelona Inst Sci & Technol, Campus UAB, Bellaterra, Barcelona, Spain..
    Hayashida, M.
    Univ Tokyo, Inst Cosm Ray Res, Kashi Wwanoha, Kashiwa, Chiba 2778582, Japan..
    Heller, M.
    Univ Geneva, Dept Phys Nucl & Corpusculaire, 24 Rue Gen Dufour, Geneva 4, Switzerland..
    Helo, J. C.
    Univ Tecn Federico Santa Maria, Ave Espana 1680, Valparaiso, Chile..
    Hinton, J.
    Max Planck Inst Kernphys, Saupfercheckweg 1, Heidelberg, Germany..
    Hnatyk, B.
    Taras Shevchenko Natl Univ Kyiv, Astron Observ, 60 Volodymyrska St, Kiev, Ukraine..
    Huet, J.
    Observ Paris, CNRS, LUTH, 5 Pl Jules Janssen, Meudon, France.;Observ Paris, CNRS, GEPI, 5 Pl Jules Janssen, Meudon, France..
    Huetten, M.
    DESY, Platanenallee 6, Zeuthen, Germany..
    Humensky, T. B.
    Columbia Univ, Dept Phys, 538 West 120th St, New York, NY 10027 USA..
    Hussein, M.
    Univ Manitoba, 540 Machray Hall, Winnipeg, MB R3T 2N2, Canada..
    Horandel, J.
    Radboud Univ Nijmegen, POB 9010, GL Nijmegen, Netherlands..
    Ikeno, Y.
    Tokai Univ, Dept Phys, Kita Kaname, Hiratsuka, Kanagawa 2591292, Japan..
    Inada, T.
    Univ Tokyo, Inst Cosm Ray Res, Kashi Wwanoha, Kashiwa, Chiba 2778582, Japan..
    Inome, Y.
    Konan Univ, Dept Phys, Kobe, Hyogo 6588501, Japan..
    Inoue, S.
    RIKEN, Inst Phys & Chem Res, Hirosawa, Wako, Saitama 3510198, Japan..
    Inoue, T.
    Natl Astron Observ Japan, Div Theoret Astron, Osawa Mitaka, Tokyo 1818588, Japan..
    Inoue, Y.
    Japan Aerosp Explorat Agcy, Inst Space & Astronaut Sci, Chuo Ku, Yoshinodai, Sagamihara, Kanagawa 2525210, Japan..
    Ioka, K.
    Kyoto Univ, Yukawa Inst Theoret Phys, Kyoto 6068502, Japan..
    Iori, M.
    INFN, Sez Roma La Sapienza, Ple Aldo Moro 2, Rome, Italy..
    Jacquemier, J.
    Univ Savoie, CNRS, IN2P3, Lab Annecy le Vieux Phys Particules, 9 Chemin Bellevue BP 110, Annecy Le Vieux, France..
    Janecek, P.
    Acad Sci Czech Republic, Inst Phys, Slovance, Prague 18221 8, Czech Republic..
    Jankowsky, D.
    Univ Erlangen Nurnberg, Inst Phys, Erwin Rommel Str 1, Erlangen, Germany..
    Jung, I.
    Univ Erlangen Nurnberg, Inst Phys, Erwin Rommel Str 1, Erlangen, Germany..
    Kaaret, P.
    Univ Iowa, Dept Phys & Astron, Van Allen Hall, Iowa City, IA 52242 USA..
    Katagiri, H.
    Ibaraki Univ, Fac Sci, Mito, Ibaraki 3108512, Japan..
    Kimeswenger, S.
    Univ Catolica Norte, Ave Angamos 0610, Antofagasta, Chile..
    Kimura, S.
    Tokai Univ, Dept Phys, Kita Kaname, Hiratsuka, Kanagawa 2591292, Japan..
    Knodlseder, J.
    IRAP, 9 Ave Colonel Roche,BP 44346, Toulouse 4, France..
    Koch, B.
    Pontificia Univ Catolica Chile, Avda Libertador Bernardo OHiggins 340, Santiago, Chile..
    Kocot, J.
    Acad Comp Ctr CYFRONET AGH, Ul Nawojki 11, Krakow, Poland..
    Kohri, K.
    KEK High Energy Accelerator Org, Inst Particle & Nucl Studies, Oho, Tsukuba, Ibaraki 3050801, Japan..
    Komin, N.
    Univ Witwatersrand, 1 Jan Smuts Ave,Johannesburg, South Africa..
    Konno, Y.
    Kyoto Univ, Grad Sch Sci, Div Phys & Astron, Sakyo Ku, Kyoto 6068502, Japan..
    Kosack, K.
    CEA Saclay, CEA, IRFU, SAp, Bat 709, Gif Sur Yvette, France..
    Koyama, S.
    Japan Aerosp Explorat Agcy, Inst Space & Astronaut Sci, Chuo Ku, Yoshinodai, Sagamihara, Kanagawa 2525210, Japan..
    Kraus, M.
    Univ Erlangen Nurnberg, Inst Phys, Erwin Rommel Str 1, Erlangen, Germany..
    Kubo, H.
    Kyoto Univ, Grad Sch Sci, Div Phys & Astron, Sakyo Ku, Kyoto 6068502, Japan..
    Mezek, G. Kukec
    Univ Nova Gorica, Lab Astroparticle Phys, Vipayska 13, Nova Gorica 5000, Slovenia..
    Kushida, J.
    Tokai Univ, Dept Phys, Kita Kaname, Hiratsuka, Kanagawa 2591292, Japan..
    La Palombara, N.
    Ist Astrofis Spaziale & Fis Cosm, Via Bassini 15, Milan, Italy..
    Lalik, K.
    Polish Acad Sci, Henryk Niewodniczanski Inst Nucl Phys, Ul Radzikowskiego 152, Krakow, Poland..
    Lamanna, G.
    Univ Savoie, CNRS, IN2P3, Lab Annecy le Vieux Phys Particules, 9 Chemin Bellevue BP 110, Annecy Le Vieux, France..
    Landt, H.
    Univ Durham, Dept Phys, South Rd, Durham DH1 3LE, UK;Univ Durham, Ctr Adv Instrumentat, South Rd, Durham DH1 3LE, UK.
    Lapington, J.
    Univ Leicester, Dept Phys & Astron, Leicester LE1 7RH, Leics, UK.
    Laporte, P.
    Observ Paris, CNRS, LUTH, 5 Pl Jules Janssen, Meudon, France.;Observ Paris, CNRS, GEPI, 5 Pl Jules Janssen, F-92190 Meudon, France..
    Lee, S.
    Japan Aerosp Explorat Agcy, Inst Space & Astronaut Sci, Chuo Ku, Yoshinodai, Sagamihara, Kanagawa 2525210, Japan..
    Lees, J.
    Univ Savoie, CNRS, IN2P3, Lab Annecy le Vieux Phys Particules, 9 Chemin Bellevue BP 110, Annecy Le Vieux, France..
    Lefaucheur, J.
    Observ Paris, CNRS, LUTH, 5 Pl Jules Janssen, Meudon, France.;Observ Paris, CNRS, GEPI, 5 Pl Jules Janssen, Meudon, France..
    Lenain, J. -P
    Leto, G.
    INAF Osservatorio Astrofis Catania, Via S Sofia 78, Catania, Italy..
    Lindfors, E.
    Univ Turku, Tuorla Observ, Piikkio, Finland..
    Lohse, T.
    Humboldt Univ, Dept Phys, Newtonstr 15, Berlin, Germany..
    Lombardi, S.
    Osserv Astron Roma, INAF, Via Frascati 33, Monte Porzio Catone, Italy..
    Longo, F.
    Univ Trieste, Trieste, Italy.;INFN, Sezione Trieste, Trieste, Italy..
    Lopez, M.
    Univ Complutense Madrid, Grp Altas Energias, Av Complutense S-N, Madrid, Spain..
    Lucarelli, F.
    Osserv Astron Roma, INAF, Via Frascati 33, Monte Porzio Catone, Italy..
    Luque-Escamilla, P. L.
    Univ Jaen, Escuela Politecn Super Jaen, Campus Las Lagunillas, Edif A3, Jaen, Spain..
    Lopez-Coto, R.
    IFAE, Barcelona Inst Sci & Technol, Campus UAB, Bellaterra, Barcelona, Spain..
    Maccarone, M. C.
    INAF Ist Astrofis Spaziale & Fis Cosm Palermo, Via U La Malfa 153, Palermo, Italy..
    Maier, G.
    DESY, Platanenallee 6, Zeuthen, Germany..
    Malaguti, G.
    Ist Astrofis Spaziale & Fis Cosm Bologna, Via Piero Gobetti 101, Bologna, Italy..
    Mandat, D.
    Acad Sci Czech Republic, Inst Phys, Slovance, Prague 18221 8, Czech Republic..
    Maneva, G.
    BAS, Inst Nucl Res & Nucl Energy, 72 Blvd Tsarigradsko Chaussee, Sofia 1784, Bulgaria..
    Mangano, S.
    CIEMAT, Avda Complutense 40, Madrid, Spain..
    Marcowith, A.
    Univ Montpellier, CNRS, IN2P3, Lab Univers & Particules Montpellier, CC 72,Pl Eugene Bataillon, Montpellier 5, France..
    Marti, J.
    Univ Jaen, Escuela Politecn Super Jaen, Campus Las Lagunillas,Edif A3, Jaen, Spain..
    Martinez, M.
    IFAE, Barcelona Inst Sci & Technol, Campus UAB,Bellaterra, Barcelona, Spain..
    Martinez, G.
    CIEMAT, Avda Complutense 40, Madrid, Spain..
    Masuda, S.
    Kyoto Univ, Grad Sch Sci, Div Phys & Astron, Sakyo Ku, Kyoto 6068502, Japan..
    Maurin, G.
    Univ Savoie, CNRS, IN2P3, Lab Annecy le Vieux Phys Particules, 9 Chemin Bellevue BP 110, Annecy Le Vieux, France..
    Maxted, N.
    Univ New South Wales, Sch Phys, Sydney, NSW 2052, Australia..
    Melioli, C.
    Univ Sao Paulo, Inst Astron Geofis & Ciencias Atmosfer, R Matao 1226, Sao Paulo, Brazil..
    Mineo, T.
    INAF Ist Astrofis Spaziale & Fis Cosm Palermo, Via U La Malfa 153, Palermo, Italy..
    Mirabal, N.
    Univ Complutense Madrid, Grp Altas Energias, Av Complutense Madrid, Spain..
    Mizuno, T.
    Hiroshima Univ, Hiroshima Astrophys Sci Ctr, Hiroshima 7398526, Japan..
    Moderski, R.
    Polish Acad Sci, Copernicus Astron Ctr, Ul Bartycka 18, Warsaw, Poland..
    Mohammed, M.
    Heidelberg Univ, Landessternwarte, Heidelberg, Germany..
    Montaruli, T.
    Univ Geneva, Dept Phys Nucl & Corpusculaire, 24 Rue Gen Dufour, Geneva 4, Switzerland..
    Moralejo, A.
    IFAE, Barcelona Inst Sci & Technol, Campus UAB, Bellaterra, Barcelona, Spain..
    Mori, K.
    Miyazaki Univ, Dept Appl Phys, Gakuen Kibana Dai Nishi, Miyazaki 8892192, Japan..
    Morlino, G.
    Univ Aquila, Dipartimento Sci Fis & Chim, INFN, Via Vetoio 1, Laquila, Italy.;Gran Sasso Sci Inst, Via Vetoio 1, Laquila, Italy..
    Morselli, A.
    INFN, Sez Roma Tor Vergata, Via Ric Sci 1, Italy..
    Moulin, E.
    CEA Saclay, CEA, IRFU, SPP, Bat 141, Gif Sur Yvette, France..
    Mukherjee, R.
    Columbia Univ, Dept Phys, 538 West 120th St, New York, NY 10027 USA..
    Mundell, C.
    Univ Bath, Bath BA2 7AY, Avon, UK.
    Muraishi, H.
    Kitasato Univ, Sch Allied Hlth Sci, Sagamihara, Kanagawa 2288555, Japan..
    Murase, K.
    Univ Tokyo, Inst Cosm Ray Res, Kashi Wwanoha, Kashiwa, Chiba 2778582, Japan..
    Nagataki, S.
    RIKEN, Inst Phys & Chem Res, Hirosawa, Wako, Saitama 3510198, Japan..
    Nagayoshi, T.
    Saitama Univ, Grad Sch Sci & Engn, Sakura Ku, 255 Simo Ohkubo, Saitama City, Saitama 3388570, Japan..
    Naito, T.
    Yamanashi Gakuin Univ, Fac Management Informat, Kofu, Yamanashi 4008575, Japan..
    Nakajima, D.
    Univ Tokyo, Inst Cosm Ray Res, Kashi Wwanoha, Kashiwa, Chiba 2778582, Japan.;Max Planck Inst Phys & Astrophys, Fohringer Ring 6, Munich, Germany..
    Nakamori, T.
    Yamagata Univ, Dept Phys, Yamagata, Yamagata 9908560, Japan..
    Nemmen, R.
    Univ Sao Paulo, Inst Astron Geofis & Ciencias Atmosfer, R Matao 1226, Sao Paulo, Brazil..
    Niemiec, J.
    Polish Acad Sci, Henryk Niewodniczanski Inst Nucl Phys, Ul Radzikowskiego 152, Krakow, Poland..
    Nieto, D.
    Columbia Univ, Dept Phys, 538 West 120th St, New York, NY 10027 USA..
    Nievas-Rosillo, M.
    Univ Complutense Madrid, Grp Altas Energias, Av Complutense, Madrid, Spain..
    Nikolajuk, M.
    Univ Bialystok, Fac Phys, Ul K Ciolkowskiego 1L, Bialystok, Poland..
    Nishijima, K.
    Tokai Univ, Dept Phys, Kita Kaname, Hiratsuka, Kanagawa 2591292, Japan..
    Noda, K.
    Univ Tokyo, Inst Cosm Ray Res, Kashi Wwanoha, Kashiwa, Chiba 2778582, Japan.;Max Planck Inst Phys & Astrophys, Fohringer Ring 6, Munich, Germany..
    Nogues, L.
    IFAE, Barcelona Inst Sci & Technol, Campus UAB, Bellaterra, Barcelona, Spain..
    Nosek, D.
    Charles Univ Prague, Inst Particle & Nucl Phys, V Holesovickach 2, Prague 18000 8, Czech Republic..
    Novosyadlyj, B.
    Ivan Franko Natl Univ Lviv, Astron Observ, 1 Univ Ska St, City Of Lviv, Ukraine..
    Nozaki, S.
    Kyoto Univ, Grad Sch Sci, Div Phys & Astron, Sakyo Ku, Kyoto 6068502, Japan..
    Ohira, Y.
    Aoyama Gakuin Univ, Dept Math & Phys, Sagamihara, Kanagawa 2298558, Japan..
    Ohishi, M.
    Univ Tokyo, Inst Cosm Ray Res, Kashi Wwanoha, Kashiwa, Chiba 2778582, Japan..
    Ohm, S.
    DESY, Platanenallee 6, Zeuthen, Germany..
    Okumura, A.
    Nagoya Univ, Inst Space Earth Environm Res, Chikusa Ku, Nagoya, Aichi 4648601, Japan..
    Ong, R. A.
    Univ Calif Los Angeles, Dept Phys & Astron, Los Angeles, CA 90095 USA..
    Orito, R.
    Tokushima Univ, Grad Sch Sci & Technol, Tokushima 7708506, Japan..
    Orlati, A.
    INAF IRA, INAF, Ist Radioastron, Via Gobetti 101, Bologna, Italy..
    Ostrowski, M.
    Jagiellonian Univ, Fac Phys Astron & Appl Comp Sci, Ul Prof Stanislawa Lojasiewicza 11, Krakow, Poland..
    Oya, I.
    DESY, Platanenallee 6, Zeuthen, Germany..
    Padovani, M.
    Univ Montpellier, CNRS, IN2P3, Lab Univers & Particules Montpellier, CC 72,Pl Eugene Bataillon, Montpellier 5, France..
    Palacio, J.
    IFAE, Barcelona Inst Sci & Technol, Campus UAB, Bellaterra, Barcelona, Spain..
    Palatka, M.
    Acad Sci Czech Republic, Inst Phys, Slovance, Prague 18221 8, Czech Republic..
    Paredes, J. M.
    Univ Barcelona, Inst Ciencies Cosmos, IEEC UB, Dept Fis Quant & Astrofis, Marti & Franques 1, Barcelona, Spain..
    Pavy, S.
    Ecole Polytech, CNRS, UMR 7638, Lab Leprince Ringuet, Palaiseau, France..
    Pe'er, A.
    Max Planck Inst Phys & Astrophys, Fohringer Ring 6, Munich, Germany..
    Persic, M.
    Univ Udine, Via Sci 208, Udine, Italy.;INFN, Sez Trieste, Via Sci 208, Udine, Italy.;Osserv Astron Trieste, Via Sci 208, Udine, Italy.;Ist Nazl Fis Nucl, Sez Trieste, Via Sci 208, Udine, Italy..
    Petrucci, P.
    Univ Joseph Fourier, INSU CNRS, Inst Planetol & Astrophys Grenoble, 621 Ave Cent,Domaine Univ, Grenoble 9, France..
    Petruk, O.
    Inst Appl Problems Mech & Math, 3B Naukova St, Lvov, Ukraine..
    Pisarski, A.
    Univ Bialystok, Fac Phys, Ul K Ciolkowskiego 1L, Bialystok, Poland..
    Pohl, M.
    Univ Potsdam, Inst Phys & Astron, Karl Liebknecht Str, Golm, Germany..
    Porcelli, A.
    Univ Geneva, Dept Phys Nucl & Corpusculaire, 24 Rue Gen Dufour, Geneva 4, Switzerland..
    Prandini, E.
    Univ Geneva, Observ Geneva, ISDC Data Ctr Astrophys, Chemin Ecogia 16, Versoix, Switzerland..
    Prast, J.
    Univ Savoie, CNRS, IN2P3, Lab Annecy le Vieux Phys Particules, 9 Chemin Bellevue BP 110, Annecy Le Vieux, France..
    Principe, G.
    Univ Erlangen Nurnberg, Inst Phys, Erwin Rommel Str 1,Erlangen, Germany..
    Prouza, M.
    Acad Sci Czech Republic, Inst Phys, Slovance, Prague 18221 8, Czech Republic..
    Pueschel, E.
    Univ Coll Dublin, Dublin 4, Ireland..
    Puelhofer, G.
    Univ Tubingen, Inst Astron & Astrophys, Sand 1, Tubingen, Germany..
    Quirrenbach, A.
    Heidelberg Univ, Landessternwarte, Heidelberg, Germany..
    Rameez, M.
    Univ Geneva, Dept Phys Nucl & Corpusculaire, 24 Rue Gen Dufour, Geneva 4, Switzerland..
    Reimer, O.
    Leopold Franzens Univ, Inst Astro & Teilchenphys, Technikerstr , Innsbruck, Austria..
    Renaud, M.
    Univ Montpellier, CNRS, IN2P3, Lab Univers & Particules Montpellier, CC 72,Pl Eugene Bataillon, Montpellier 5, France..
    Ribo, M.
    Univ Barcelona, Inst Ciencies Cosmos, IEEC UB, Dept Fis Quant & Astrofis, Marti & Franques 1, Barcelona, Spain..
    Rico, J.
    IFAE, Barcelona Inst Sci & Technol, Campus UAB, Bellaterra, Barcelona, Spain..
    Rizi, V.
    Univ Aquila, Dipartimento Sci Fis & Chim, INFN, Via Vetoio 1, Laquila, Italy.;Gran Sasso Sci Inst, Via Vetoio 1, Laquila, Italy..
    Rodriguez, J.
    CEA Saclay, CEA, IRFU, SAp, Bat 709, Gif Sur Yvette, France..
    Fernandez, G. Rodriguez
    INFN, Sez Roma Tor Vergata, Via Ric Sci 1, Rome, Italy..
    Rodriguez Vazquez, J. J.
    CIEMAT, Avda Complutense 40, Madrid, Spain..
    Romano, P.
    INAF Ist Astrofis Spaziale & Fis Cosm Palermo, Via U La Malfa 153, Palermo, Italy..
    Romeo, G.
    INAF Osservatorio Astrofis Catania, Via S Sofia 78, Catania, Italy..
    Rosado, J.
    Univ Complutense Madrid, Grp Altas Energias, Av Complutense, Madrid, Spain..
    Rousselle, J.
    Univ Calif Los Angeles, Dept Phys & Astron, Los Angeles, CA 90095 USA..
    Rowell, G.
    Univ Adelaide, Sch Phys Sci, Adelaide, SA 5005, Australia..
    Rudak, B.
    Polish Acad Sci, Copernicus Astron Ctr, Ul Bartycka 18, Warsaw, Poland..
    Sadeh, I.
    DESY, Platanenallee 6, Zeuthen, Germany..
    Safi-Harb, S.
    Univ Manitoba, 540 Machray Hall, Winnipeg, MB R3T 2N2, Canada..
    Saito, T.
    Kyoto Univ, Grad Sch Sci, Div Phys & Astron, Sakyo Ku, Kyoto 6068502, Japan..
    Sakaki, N.
    Univ Tokyo, Inst Cosm Ray Res, Kashi Wwanoha, Kashiwa, Chiba 2778582, Japan..
    Sanchez, D.
    Univ Savoie, CNRS, IN2P3, Lab Annecy le Vieux Phys Particules, 9 Chemin Bellevue BP 110, Annecy Le Vieux, France..
    Sangiorgi, P.
    INAF Ist Astrofis Spaziale & Fis Cosm Palermo, Via U La Malfa 153, Palermo, Italy..
    Sano, H.
    Nagoya Univ, Dept Phys & Astrophys, Chikusa Ku, Nagoya, Aichi 4648602, Japan..
    Santander, M.
    Columbia Univ, Dept Phys, 538 West 120th St, New York, NY 10027 USA..
    Sarkar, S.
    Univ Oxford, Dept Phys, 1 Keble Rd, Oxford OX1 3NP, UK.
    Sawada, M.
    Aoyama Gakuin Univ, Dept Math & Phys, Sagamihara, Kanagawa 2298558, Japan..
    Schioppa, E. J.
    Univ Geneva, Dept Phys Nucl & Corpusculaire, 24 Rue Gen Dufour, Geneva 4, Switzerland..
    Schoorlemmer, H.
    Max Planck Inst Kernphys, Saupfercheckweg 1, Heidelberg, Germany..
    Schovanek, P.
    Acad Sci Czech Republic, Inst Phys, Slovance, Prague 18221 8, Czech Republic..
    Schussler, F.
    CEA Saclay, CEA, IRFU, SPP, Bat 141, Gif Sur Yvette, France..
    Sergijenko, O.
    Ivan Franko Natl Univ Lviv, Astron Observ, 1 Univ Ska St, City Of Lviv, Ukraine..
    Servillat, M.
    Observ Paris, CNRS, LUTH, 5 Pl Jules Janssen, Meudon, France.;Observ Paris, CNRS, GEPI, 5 Pl Jules Janssen, Meudon, France..
    Shalchi, A.
    Univ Manitoba, 540 Machray Hall, Winnipeg, MB R3T 2N2, Canada..
    Shellard, R. C.
    Ctr Brasileiro Pesquisas Fis, Rua Xavier Sigaud 150, Rio De Janeiro, Brazil..
    Siejkowski, H.
    Acad Comp Ctr CYFRONET AGH, Ul Nawojki 11, Krakow, Poland..
    Sillanpaa, A.
    Univ Turku, Tuorla Observ, Piikkio, Finland..
    Simone, D.
    INFN, Sez Bari, Via Orabona 4, Bari, Italy..
    Sliusar, V.
    Univ Geneva, Observ Geneva, ISDC Data Ctr Astrophys, Chemin Ecogia 16, Versoix, Switzerland..
    Sol, H.
    Observ Paris, CNRS, LUTH, 5 Pl Jules Janssen, Meudon, France.;Observ Paris, CNRS, GEPI, 5 Pl Jules Janssen, Meudon, France..
    Stanic, S.
    Univ Nova Gorica, Lab Astroparticle Phys, Vipayska 13, Nova Gorica 5000, Slovenia..
    Starling, R.
    Univ Leicester, Dept Phys & Astron, Leicester LE1 7RH, Leics, UK.
    Stawarz, L.
    Jagiellonian Univ, Fac Phys Astron & Appl Comp Sci, Ul Prof Stanislawa Lojasiewicza 11, Krakow, Poland..
    Stefanik, S.
    Charles Univ Prague, Inst Particle & Nucl Phys, V Holesovickach 2, Prague 18000 8, Czech Republic..
    Stephan, M.
    Univ Amsterdam, Astron Inst Anton Pannekoek, Sci Pk 904, XH Amsterdam, Netherlands..
    Stolarczyk, T.
    CEA Saclay, CEA, IRFU, SAp, Bat 709, Gif Sur Yvette, France..
    Szanecki, M.
    Univ Lodz, Fac Phys & Appl Comp Sci, Ul Pomorska Lodz, Poland..
    Szepieniec, T.
    Acad Comp Ctr CYFRONET AGH, Ul Nawojki 11, Krakow, Poland..
    Tagliaferri, G.
    INAF Osservatorio Astron Brera, Via Brera 28, Milan, Italy..
    Tajima, H.
    Nagoya Univ, Inst Space Earth Environm Res, Chikusa Ku, Nagoya, Aichi 4648601, Japan..
    Takahashi, M.
    Univ Tokyo, Inst Cosm Ray Res, Kashi Wwanoha, Kashiwa, Chiba 2778582, Japan..
    Takeda, J.
    Yamagata Univ, Dept Phys, Yamagata, Yamagata 9908560, Japan..
    Tanaka, M.
    KEK High Energy Accelerator Org, Inst Particle & Nucl Studies, Oho, Tsukuba, Ibaraki 3050801, Japan..
    Tanaka, S.
    Konan Univ, Dept Phys, Kobe, Hyogo 6588501, Japan..
    Tejedor, L. A.
    Univ Complutense Madrid, Grp Altas Energias, Av Complutense, Madrid, Spain..
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    Univ Potsdam, Inst Phys & Astron, Karl Liebknecht Str, Golm, Germany..
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    BAS, Inst Nucl Res & Nucl Energy, 72 Blvd Tsarigradsko Chaussee, Sofia 1784, Bulgaria..
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    Saitama Univ, Grad Sch Sci & Engn, Sakura Ku, 255 Simo Ohkubo, Saitama City, Saitama 3388570, Japan..
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    Univ Padua, Dipartimento Fis, Via Marzolo 8, Padua, Italy..
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    Univ Tokyo, Inst Cosm Ray Res, Kashi Wwanoha, Kashiwa, Chiba 2778582, Japan.;Max Planck Inst Phys & Astrophys, Fohringer Ring 6, Munich, Germany..
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    Osserv Astron Roma, INAF, Via Frascati 33, Monte Porzio Catone, Italy..
    Thoudam, Satyendra
    Linnaeus University, Faculty of Technology, Department of Physics and Electrical Engineering.
    Tokanai, F.
    Yamagata Univ, Dept Phys, Yamagata, Yamagata 9908560, Japan..
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    Inst Space Sci IEEC CSIC, Campus UAB,Caner Can Magrans Cerdanyola Del Valles, Spain.;ICREA, Campus UAB,Caner Can Magrans Cerdanyola Del Valles, Spain..
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    Ist Astrofis Spaziale & Fis Cosm Bologna, Via Piero Gobetti 101, Bologna, Italy..
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    INAF Osservatorio Astron Brera, Via Brera 28, Milan, Italy..
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    Cherenkov Telescope Array Observ, Saupfercheckweg 1, Heidelberg, Germany..
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    Acad Sci Czech Republic, Inst Phys, Slovance Prague 18221 8, Czech Republic..
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    Aix Marseille Univ, CNRS, IN2P3, CPPM, 163 Ave Luminy, Marseille, France..
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    Ist Astrofis Spaziale & Fis Cosm Bologna, Via Piero Gobetti 101, Bologna, Italy..
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    Tokai Univ, Dept Phys, Kita Kaname, Hiratsuka, Kanagawa 2591292, Japan..
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    INFN, Sez Perugia, Via A Pascoli, Perugia, Italy..
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    Osserv Astron Torino, INAF, Corso Fiume 4, Turin, Italy..
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    Ist Nazl Fis Nucl, Sez Napoli, Via Cintia,Ed G, Naples, Italy..
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    Observ Paris, CNRS, LUTH, 5 Pl Jules Janssen, Meudon, France.;Observ Paris, CNRS, GEPI, 5 Pl Jules Janssen, Meudon, France..
    van Eldik, C.
    Univ Erlangen Nurnberg, Inst Phys, Erwin Rommel Str 1, Erlangen, Germany..
    Vandenbroucke, J.
    Univ Wisconsin, 500 Lincoln Dr, Madison, WI 53706 USA..
    Vassiliev, V.
    Univ Calif Los Angeles, Dept Phys & Astron, Los Angeles, CA 90095 USA..
    Vecchi, M.
    Univ Sao Paulo, Inst Fis Sao Carlos, Ave Trabalhador Sao Carlense 400, Sao Carlos, SP, Brazil..
    Vercellone, S.
    INAF Ist Astrofis Spaziale & Fis Cosm Palermo, Via U La Malfa 153, Palermo, Italy..
    Vergani, S.
    Observ Paris, CNRS, LUTH, 5 Pl Jules Janssen, Meudon, France.;Observ Paris, CNRS, GEPI, 5 Pl Jules Janssen, Meudon, France..
    Vigorito, C.
    Ist Nazl Fis Nucl, Sez Torino, Via P Giuria 1, Turin, Italy..
    Vorobiov, S.
    Univ Nova Gorica, Lab Astroparticle Phys, Vipayska 13, Nova Gorica 5000, Slovenia..
    Vrastil, M.
    Acad Sci Czech Republic, Inst Phys, Slovance, Prague 18221 8, Czech Republic..
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    Inst Astrofis Canarias, Via Lactea, Tenerife, Spain..
    Wagner, S. J.
    Heidelberg Univ, Landessternwarte, Heidelberg, Germany..
    Wagner, R.
    Max Planck Inst Phys & Astrophys, Fohringer Ring 6, Munich, Germany.;Stockholm Univ, Univ Vagen 10 A, Stockholm, Sweden..
    Prospects for Cherenkov Telescope Array Observations of the Young Supernova Remnant RX J1713.7-39462017In: Astrophysical Journal, ISSN 0004-637X, E-ISSN 1538-4357, Vol. 840, no 2, article id 74Article in journal (Refereed)
    Abstract [en]

    We perform simulations for future Cherenkov Telescope Array (CTA) observations of RX J1713.7-3946, a young supernova remnant (SNR) and one of the brightest sources ever discovered in very high energy (VHE) gamma rays. Special attention is paid to exploring possible spatial (anti) correlations of gamma rays with emission at other wavelengths, in particular X-rays and CO/H I emission. We present a series of simulated images of RX J1713.7-3946 for CTA based on a set of observationally motivated models for the gamma-ray emission. In these models, VHE gamma rays produced by high-energy electrons are assumed to trace the nonthermal X-ray emission observed by XMM-Newton, whereas those originating from relativistic protons delineate the local gas distributions. The local atomic and molecular gas distributions are deduced by the NANTEN team from CO and H I observations. Our primary goal is to show how one can distinguish the emission mechanism(s) of the gamma rays (i.e., hadronic versus leptonic, or a mixture of the two) through information provided by their spatial distribution, spectra, and time variation. This work is the first attempt to quantitatively evaluate the capabilities of CTA to achieve various proposed scientific goals by observing this important cosmic particle accelerator.

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