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  • 101. Collaboration, H. E. S. S.
    et al.
    Abramowski, A.
    Aharonian, F.
    Benkhali, F. Ait
    Akhperjanian, A. G.
    Anguener, E.
    Anton, G.
    Balenderan, S.
    Balzer, A.
    Barnacka, A.
    Becherini, Yvonne
    Linnéuniversitetet, Fakulteten för teknik (FTK), Institutionen för fysik och elektroteknik (IFE).
    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.
    de Wilt, 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
    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
    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.
    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.
    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 observations of the Crab during its March 2013 GeV gamma-ray flare2014Ingår i: Astronomy and Astrophysics, ISSN 0004-6361, E-ISSN 1432-0746, Vol. 562, s. Article ID: UNSP L4-Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Context. On March 4, 2013 the Fermi-EAT and AGILE reported a flare from the direction of the Crab nebula in which the high-energy (HE; E > 100 MeV) flux was six times above its quiescent level. Simultaneous observations in other energy bands give us hints about the emission processes during the flare episode and the physics of pulsar wind nebulae in general. Aims. We search for variability in the emission of the Crab nebula at very-high energies (VHF,; E > 100 GeV), using contemporaneous data taken with the H.E.S.S. array of Cherenkov telescopes. Methods. Observational data taken with the H.E.S.S. instrument on five consecutive days during the flare were analysed for the flux and spectral shape of the emission from the Crab nebula. Night-wise light curves are presented with energy thresholds of 1 TeV and 5 TeV. Results. The observations conducted with H.E.S.S. on March 6 to March 10, 2013 show no significant changes in the flux. They limit the variation in the integral flux above 1 TeV to less than 63% and the integral flux above 5 TeV to less than 78% at a 95% confidence level.

  • 102.
    Füßling, Matthias
    et al.
    Deutsches Elektronen-Synchrotron, Germany.
    Oya, Igor
    Deutsches Elektronen-Synchrotron, Germany.
    Balzer, Arnim
    University of Amsterdam, The Netherlands.
    Berge, David
    University of Amsterdam, The Netherlands.
    Borkowski, Jerzy
    Nicolaus Copernicus Astronomical Center, Poland.
    Conforti, Vito
    INAF - IASF Bologna, Italy.
    Colomé, Josep
    University of Barcelona, Spain.
    Lindemann, Rico
    Deutsches Elektronen-Synchrotron, Germany.
    Lyard, Etienne
    University of Geneva, Switzerland.
    Melkumyan, David
    Deutsches Elektronen-Synchrotron, Germany.
    Punch, Michael
    Paris Diderot University.
    Schwanke, Ullrich
    Humboldt University of Berlin, Germany.
    Schwarz, Joseph
    Brera Astronomical Observatory, Italy.
    Tanci, Claudio
    University of Perugia, Italy.
    Tosti, Gino
    University of Perugia, Italy.
    Wegner, Peter
    Deutsches Elektronen-Synchrotron, Germany.
    Wischnewski, Ralf
    Deutsches Elektronen-Synchrotron, Germany.
    Weinstein, Amanda
    Iowa State University, USA.
    Status of the array control and data acquisition system for the Cherenkov Telescope Array2016Ingår i: Software and Cyberinfrastructure for Astronomy IV / [ed] Gianluca Chiozzi, Juan C. Guzman, SPIE - International Society for Optical Engineering, 2016, artikel-id 99133CKonferensbidrag (Refereegranskat)
    Abstract [en]

    The Cherenkov Telescope Array (CTA) will be the next-generation ground-based observatory using the atmospheric Cherenkov technique. The CTA instrument will allow researchers to explore the gamma-ray sky in the energy range from 20 GeV to 300 TeV. CTA will comprise two arrays of telescopes, one with about 100 telescopes in the Southern hemisphere and another smaller array of telescopes in the North. CTA poses novel challenges in the field of ground-based Cherenkov astronomy, due to the demands of operating an observatory composed of a large and distributed system with the needed robustness and reliability that characterize an observatory. The array control and data acquisition system of CTA (ACTL) provides the means to control, readout and monitor the telescopes and equipment of the CTA arrays. The ACTL system must be flexible and reliable enough to permit the simultaneous and automatic control of multiple sub-arrays of telescopes with a minimum effort of the personnel on-site. In addition, the system must be able to react to external factors such as changing weather conditions and loss of telescopes and, on short timescales, to incoming scientific alerts from time-critical transient phenomena. The ACTL system provides the means to time-stamp, readout, filter and store the scientific data at aggregated rates of a few GB/s. Monitoring information from tens of thousands of hardware elements need to be channeled to high performance database systems and will be used to identify potential problems in the instrumentation. This contribution provides an overview of the ACTL system and a status report of the ACTL project within CTA.

  • 103. Glicenstein, J-F
    et al.
    Barcelo, M.
    Barrio, J-A
    Blanch, O.
    Boix, J.
    Bolmont, J.
    Boutonnet, C.
    Brun, P.
    Chabanne, E.
    Champion, C.
    Colonges, S.
    Corona, P.
    Courty, B.
    Delagnes, E.
    Delgado, C.
    Diaz, C.
    Ernenwein, J-P
    Fegan, S.
    Ferreira, O.
    Fesquet, M.
    Fontaine, G.
    Fouque, N.
    Henault, F.
    Gascon, D.
    Giebels, B.
    Herranz, D.
    Hermel, R.
    Hoffmann, D.
    Horan, D.
    Houles, J.
    Jean, P.
    Karkar, S.
    Knoedlseder, J.
    Martinez, G.
    Lamanna, G.
    LeFlour, T.
    Leveque, A.
    Lopez-Coto, R.
    Louis, F.
    Moudden, Y.
    Moulin, E.
    Nayman, P.
    Nunio, F.
    Olives, J-F
    Panazol, J-L
    Pavy, S.
    Petrucci, P-O
    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.
    Prast, J.
    Ramons, P.
    Rateau, S.
    Rib'o, M.
    Rosier-Lees, S.
    Sanuy, A.
    Sizun, P.
    Sieiro, J.
    Sulanke, K-H
    Tavernet, J-P
    Tejedor, L. A.
    Toussenel, F.
    Vasileiadis, G.
    Voisin, V.
    Waegeberts, V.
    Zurbach, C.
    Status of the NectarCAM camera project2014Ingår i: High Energy, Optical, and Infrared Detectors for Astronomy VI, SPIE - International Society for Optical Engineering, 2014, artikel-id 91541DKonferensbidrag (Refereegranskat)
    Abstract [en]

    NectarCAM is a camera designed for the medium-sized telescopes of the Cherenkov Telescope Array (CTA) covering the central energy range 100 GeV to 30 TeV. It has a modular design based on the NECTAr chip, at the heart of which is a GHz sampling Switched Capacitor Array and 12-bit Analog to Digital converter. The camera will be equipped with 265 7-photomultiplier modules, covering a field of view of 7 to 8 degrees. Each module includes the photomultiplier bases, High Voltage supply, pre-amplifier, trigger, readout and Thernet transceiver. Events recorded last between a few nanoseconds and tens of nanoseconds. A flexible trigger scheme allows to read out very long events. NectarCAM can sustain a data rate of 10 kHz. The camera concept, the design and tests of the various subcomponents and results of thermal and electrical prototypes are presented. The design includes the mechanical structure, the cooling of electronics, read-out, clock distribution, slow control, data-acquisition, trigger, monitoring and services. A 133-pixel prototype with full scale mechanics, cooling, data acquisition and slow control will be built at the end of 2014.

  • 104.
    Henault, Franois
    et al.
    Joseph Fourier University, France.
    Petrucci, Pierre-Olivier
    Joseph Fourier University, France.
    Jocou, Laurent
    Joseph Fourier University, France.
    Khelifi, Bruno
    Ecole Polytechnique, France.
    Manigot, Pascal
    Ecole Polytechnique, France.
    Hormigos, Stephane
    Ecole Polytechnique, France.
    Knoedlseder, Juergen
    Institut de recherche en astrophysique et planétologie, France.
    Olive, Jean-Francois
    Institut de recherche en astrophysique et planétologie, France.
    Jean, Pierre
    Institut de recherche en astrophysique et planétologie, France.
    Punch, Michael
    Paris Diderot University, France.
    Design of light concentrators for Cherenkov telescope observatories2013Ingår i: Nonimaging Optics: Efficient Design for Illumination and Solar Concentration X / [ed] Roland Winston, Jeffrey Gordon, 2013, artikel-id 883405Konferensbidrag (Refereegranskat)
    Abstract [en]

    The Cherenkov Telescope Array (CTA) will be the largest cosmic gamma ray detector ever built in the world. It will be installed at two different sites in the North and South hemispheres and should be operational for about 30 years. In order to cover the desired energy range, the CTA is composed of typically 50-100 collecting telescopes of various sizes (from 6 to 24-m diameters). Most of them are equipped with a focal plane camera consisting of 1500 to 2000 Photomultipliers (PM) equipped with light concentrating optics, whose double function is to maximize the amount of Cherenkov light detected by the photo-sensors, and to block any stray light originating from the terrestrial environment. Two different optical solutions have been designed, respectively based on a Compound Parabolic Concentrator (CPC), and on a purely dioptric concentrating lens. In this communication are described the technical specifications, optical designs and performance of the different solutions envisioned for all these light concentrators. The current status of their prototyping activities is also given.

  • 105.
    Petroff, E.
    et al.
    The Netherlands Institute for Radio Astronomy, Netherlands ; Swinburne University of Technology, Australia ; Australia Telescope National Facility, Australia ; ARC Centre of Excellence for All-sky Astrophysics (CAASTRO), Australia.
    Burke-Spolaor, S.
    National Radio Astronomy Observatory, USA ; West Virginia University, USA.
    Keane, E. F.
    Jodrell Bank Observatory, UK ; Swinburne University of Technology, Australia.
    McLaughlin, M. A.
    West Virginia University, USA.
    Miller, R.
    West Virginia University, USA.
    Andreoni, I.
    Swinburne University of Technology, Australia ; ARC Centre of Excellence for All-sky Astrophysics (CAASTRO), Australia ; Australian Astronomical Observatory, Australia.
    Bailes, M.
    Swinburne University of Technology, Australia ; ARC Centre of Excellence for All-sky Astrophysics (CAASTRO), Australia.
    Barr, E. D.
    Swinburne Univ Technol, Australia ; ARC Ctr Excellence All Sky Astrophys CAASTRO, Australia ; Max Planck Inst Radioastron, Germany.
    Bernard, S. R.
    Max Planck Institute for Radio Astronomy, Germany ; Swinburne University of Technology, Australia ; ARC Centre of Excellence for All-sky Astrophysics (CAASTRO), Australia.
    Bhandari, S.
    University of Melbourne, Australia ; Swinburne University of Technology, Australia ; ARC Centre of Excellence for All-sky Astrophysics (CAASTRO), Australia.
    Bhat, N. D. R.
    ARC Ctr Excellence All Sky Astrophys CAASTRO, Sydney, NSW, Australia.;Curtin Univ, Int Ctr Radio Astron Res, Bentley, WA 6102, Australia..
    Burgay, M.
    INAF Osservatorio Astron Cagliari, Via Sci 5, I-09047 Selargius, CA, Italy..
    Caleb, M.
    Australia Telescope Natl Facil, CSIRO Astron & Space Sci, POB 76, Epping, NSW 1710, Australia.;ARC Ctr Excellence All Sky Astrophys CAASTRO, Sydney, NSW, Australia.;Australian Natl Univ, Res Sch Astron & Astrophys, Weston, ACT 2611, Australia..
    Champion, D.
    Max Planck Inst Radioastron, Hugel 69, D-53121 Bonn, Germany..
    Chandra, P.
    Tata Inst Fundamental Res, Natl Ctr Radio Astrophys, Pune Univ Campus, Pune 411007, Maharashtra, India..
    Cooke, J.
    Swinburne Univ Technol, Ctr Astrophys & Supercomp, Mail H30,POB 218, Hawthorn, Vic 3122, Australia..
    Dhillon, V. S.
    Univ Sheffield, Dept Phys & Astron, Sheffield S3 7RH, S Yorkshire, UK;Inst Astrofis Canarias, E-38205 Tenerife, Spain..
    Farnes, J. S.
    Radboud Univ Nijmegen, Dept Astrophys IMAPP, POB 9010, NL-6500 GL Nijmegen, Netherlands..
    Hardy, L. K.
    Univ Sheffield, Dept Phys & Astron, Sheffield S3 7RH, S Yorkshire, UK.
    Jaroenjittichai, P.
    Natl Astron Res Inst Thailand, 191 Siriphanich Bldg,Huay Kaew Rd, Chiang Mai 50200, Thailand..
    Johnston, S.
    Australia Telescope Natl Facil, CSIRO Astron & Space Sci, POB 76, Epping, NSW 1710, Australia..
    Kasliwal, M.
    CALTECH, Cahill Ctr Astron & Astrophys, MC 249-17, Pasadena, CA 91125 USA..
    Kramer, M.
    Max Planck Inst Radioastron, Hugel 69, D-53121 Bonn, Germany.;Univ Manchester, Jodrell Bank, Ctr Astrophys, Alan Turing Bldg,Oxford Rd, Manchester M13 9PL, Lancs, UK.
    Littlefair, S. P.
    Univ Sheffield, Dept Phys & Astron, Sheffield S3 7RH, S Yorkshire, UK.
    Macquart, J. P.
    Curtin Univ, Int Ctr Radio Astron Res, Bentley, WA 6102, Australia..
    Mickaliger, M.
    Univ Manchester, Jodrell Bank, Ctr Astrophys, Alan Turing Bldg,Oxford Rd, Manchester M13 9PL, Lancs, UK.
    Possenti, A.
    INAF Osservatorio Astron Cagliari, Via Sci 5, I-09047 Selargius, CA, Italy..
    Pritchard, T.
    Swinburne Univ Technol, Ctr Astrophys & Supercomp, Mail H30,POB 218, Hawthorn, Vic 3122, Australia..
    Ravi, V.
    CALTECH, Cahill Ctr Astron & Astrophys, MC 249-17, Pasadena, CA 91125 USA..
    Rest, A.
    Space Telescope Sci Inst, 3700 San Martin Dr, Baltimore, MD 21218 USA..
    Rowlinson, A.
    Netherlands Inst Radio Astron, ASTRON, Postbus 2, NL-7990 AA Dwingeloo, Netherlands.;Univ Amsterdam, Aston Pannekoek Inst, Postbus NL 94249, NL-1090 GE Amsterdam, Netherlands..
    Sawangwit, U.
    Natl Astron Res Inst Thailand, 191 Siriphanich Bldg,Huay Kaew Rd, Chiang Mai 50200, Thailand..
    Stappers, B.
    Univ Manchester, Jodrell Bank, Ctr Astrophys, Alan Turing Bldg,Oxford Rd, Manchester M13 9PL, Lancs, UK.
    Sullivan, M.
    Univ Southampton, Dept Phys & Astron, Southampton SO17 1BJ, Hants, UK.
    Tiburzi, C.
    Univ Bielefeld, Fak Phys, Postfach 100131, D-33501 Bielefeld, Germany..
    van Straten, W.
    Swinburne Univ Technol, Ctr Astrophys & Supercomp, Mail H30,POB 218, Hawthorn, Vic 3122, Australia.;Auckland Univ Technol, Inst Radio Astron & Space Res, Private Bag 92006, Auckland 1142, New Zealand..
    Albert, A.
    Univ Haute Alsace, GRPHE, Inst Univ Technol Colmar, 34 Rue Grillenbreit BP F 68008, F-68008 Colmar, France..
    Andre, M.
    Tech Univ Catalonia, Lab Appl Bioacoust, Rambla Exposicio, E-08800 Barcelona, Spain..
    Anghinolfi, M.
    Ist Nazl Fis Nucl, Sez Genova, Via Dodecaneso 33, I-16146 Genoa, Italy..
    Anton, G.
    Friedrich Alexander Univ Erlangen Nurnberg, Erlangen Ctr Astroparticle Phys, Erwin Rommel Str 1, D-91058 Erlangen, Germany..
    Ardid, M.
    Univ Politecn Valencia, Inst Invest Gestio Integrada Zones Costaneres IGI, C Paranimf 1, E-46730 Gandia, Spain..
    Aubert, J. -J
    Avgitas, T.
    Univ Paris Diderot, APC, CNRS IN2P3, Observ Paris,CEA IRFU,Sorbonne Paris Cite, F-75205 Paris, France..
    Baret, B.
    Univ Paris Diderot, APC, CNRS IN2P3, Observ Paris,CEA IRFU,Sorbonne Paris Cite, F-75205 Paris, France..
    Barrios-Marti, J.
    Univ Valencia, CSIC, IFIC Inst Fis Corpuscular, C Catedratico Jose Beltran 2, E-46980 Valencia, Spain..
    Basa, S.
    Pole Etoile Site Chateau Gombert, LAM, Rue Frederic Joliot Curie 38, F-13388 Marseille 13, France..
    Bertin, V.
    Aix Marseille Univ, CNRS IN2P3, CPPM UMR 7346, F-13288 Marseille, France..
    Biagi, S.
    Ist Nazl Fis Nucl, LNS, Via S Sofia 62, I-95123 Catania, Italy..
    Borrnuth, R.
    Nikhef, Sci Pk, Amsterdam, Netherlands.;Leiden Univ, Huygens Karnerlingh Onnes Lab, Leiden, Netherlands..
    Bourret, S.
    Univ Paris Diderot, APC, CNRS IN2P3, Observ Paris,CEA IRFU,Sorbonne Paris Cite, F-75205 Paris, France..
    Bouwhuis, M. C.
    Nikhef, Sci Pk, Amsterdam, Netherlands..
    Bruijn, R.
    Univ Amsterdam, Aston Pannekoek Inst, Postbus NL 94249, NL-1090 GE Amsterdam, Netherlands.;Nikhef, Sci Pk, Amsterdam, Netherlands..
    Brunner, J.
    Aix Marseille Univ, CNRS IN2P3, CPPM UMR 7346, F-13288 Marseille, France..
    Busto, J.
    Aix Marseille Univ, CNRS IN2P3, CPPM UMR 7346, F-13288 Marseille, France..
    Capone, A.
    Ist Nazl Fis Nucl, Sez Roma, Ple Aldo Moro 2, I-00185 Rome, Italy.;Univ Roma La Sapienza, Dipartimento Fis, Ple Aldo Moro 2, I-00185 Rome, Italy..
    Caramete, L.
    Inst Space Sci, RO-077125 Bucharest, Magurele, Romania..
    Carr, J.
    Aix Marseille Univ, CNRS IN2P3, CPPM UMR 7346, F-13288 Marseille, France..
    Celli, S.
    Ist Nazl Fis Nucl, Sez Roma, Ple Aldo Moro 2, I-00185 Rome, Italy.;Univ Roma La Sapienza, Dipartimento Fis, Ple Aldo Moro 2, I-00185 Rome, Italy..
    Chiarusi, T.
    Ist Nazl Fis Nucl, Sez Bologna, Viale Berti Pichat 6-2, I-40127 Bologna, Italy..
    Circella, M.
    Ist Nazl Fis Nucl, Sez Bari, Via E Orabona 4, I-70126 Bari, Italy..
    Coelho, J. A. B.
    Univ Paris Diderot, APC, CNRS IN2P3, Observ Paris,CEA IRFU,Sorbonne Paris Cite, F-75205 Paris, France..
    Coleiro, A.
    Univ Paris Diderot, APC, CNRS IN2P3, Observ Paris,CEA IRFU,Sorbonne Paris Cite, F-75205 Paris, France..
    Coniglione, R.
    Ist Nazl Fis Nucl, LNS, Via S Sofia 62, I-95123 Catania, Italy..
    Costantini, H.
    Aix Marseille Univ, CNRS IN2P3, CPPM UMR 7346, F-13288 Marseille, France..
    Coyle, P.
    Aix Marseille Univ, CNRS IN2P3, CPPM UMR 7346, F-13288 Marseille, France..
    Creusot, A.
    Univ Paris Diderot, APC, CNRS IN2P3, Observ Paris,CEA IRFU,Sorbonne Paris Cite, F-75205 Paris, France..
    Deschamps, A.
    UCA, Geoazur, CNRS, Observ Cote Azur,IRD, Sophia Antipolis, France..
    De Bonis, G.
    Ist Nazl Fis Nucl, Sez Roma, Ple Aldo Moro 2, I-00185 Rome, Italy.;Univ Roma La Sapienza, Dipartimento Fis, Ple Aldo Moro 2, I-00185 Rome, Italy..
    Distefano, C.
    Ist Nazl Fis Nucl, LNS, Via S Sofia 62, I-95123 Catania, Italy..
    Di Palma, I.
    Ist Nazl Fis Nucl, Sez Roma, Ple Aldo Moro 2, I-00185 Rome, Italy.;Univ Roma La Sapienza, Dipartimento Fis, Ple Aldo Moro 2, I-00185 Rome, Italy..
    Donzaud, C.
    Univ Paris Diderot, APC, CNRS IN2P3, Observ Paris,CEA IRFU,Sorbonne Paris Cite, F-75205 Paris, France.;Univ Paris 11, F-91405 Orsay, France..
    Dornic, D.
    Aix Marseille Univ, CNRS IN2P3, CPPM UMR 7346, F-13288 Marseille, France..
    Drouhin, D.
    Univ Haute Alsace, GRPHE, Inst Univ Technol Colmar, 34 Rue Grillenbreit BP F 68008, F-68008 Colmar, France..
    Eberl, T.
    Friedrich Alexander Univ Erlangen Nurnberg, Erlangen Ctr Astroparticle Phys, Erwin Rommel Str 1, D-91058 Erlangen, Germany..
    El Bojaddaini, I.
    Univ Mohammed 1, Lab Phys Matter & Radiat, BP 7I7, Oujda 6000, Morocco..
    Elsasser, D.
    Univ Wurzburg, Inst Theoret Phys & Astrophys, Emil Fischer Str 31, D-97074 Wurzburg, Germany..
    Enzenhofer, A.
    Aix Marseille Univ, CNRS IN2P3, CPPM UMR 7346, F-13288 Marseille, France..
    Felis, I.
    Univ Politecn Valencia, Inst Invest Gestio Integrada Zones Costaneres IGI, C Paranimf 1, E-46730 Gandia, Spain..
    Fusco, L. A.
    Ist Nazl Fis Nucl, Sez Bologna, Viale Berti Pichat 6-2, I-40127 Bologna, Italy.;Univ Bologna, Dipartimento Fis & Astron, Viale Berti Pichat 6-2, I-40127 Bologna, Italy..
    Galata, S.
    Univ Paris Diderot, APC, CNRS IN2P3, Observ Paris,CEA IRFU,Sorbonne Paris Cite, F-75205 Paris, France..
    Gay, P.
    Univ Paris Diderot, APC, CNRS IN2P3, Observ Paris,CEA IRFU,Sorbonne Paris Cite, F-75205 Paris, France.;Univ Blaise Pascal, Clermont Univ, Phys Corpusculaire Lab, CNRS IN2P3, BP 10448, F-63000 Clermont Ferrand, France..
    Geisselsoder, S.
    Friedrich Alexander Univ Erlangen Nurnberg, Erlangen Ctr Astroparticle Phys, Erwin Rommel Str 1, D-91058 Erlangen, Germany..
    Geyer, K.
    Friedrich Alexander Univ Erlangen Nurnberg, Erlangen Ctr Astroparticle Phys, Erwin Rommel Str 1, D-91058 Erlangen, Germany..
    Giordano, V.
    Ist Nazl Fis Nucl, Sez Catania, Viale Andrea Doria 6, I-95125 Catania, Italy..
    Gleixner, A.
    Friedrich Alexander Univ Erlangen Nurnberg, Erlangen Ctr Astroparticle Phys, Erwin Rommel Str 1, D-91058 Erlangen, Germany..
    Glotin, H.
    Aix Marseille Univ, LSIS, CNRS, ENSAM,LSIS,UMR 7296, F-13397 Marseille, France.;Univ Toulon & Var, CNRS, LSIS, UMR 7296, F-83957 La Garde, France.;Inst Univ France, E-75005 Paris, France..
    Gregoire, T.
    Univ Paris Diderot, APC, CNRS IN2P3, Observ Paris,CEA IRFU,Sorbonne Paris Cite, F-75205 Paris, France..
    Gracia-Ruiz, R.
    Univ Paris Diderot, APC, CNRS IN2P3, Observ Paris,CEA IRFU,Sorbonne Paris Cite, F-75205 Paris, France..
    Graf, K.
    Friedrich Alexander Univ Erlangen Nurnberg, Erlangen Ctr Astroparticle Phys, Erwin Rommel Str 1, D-91058 Erlangen, Germany..
    Hallmann, S.
    Friedrich Alexander Univ Erlangen Nurnberg, Erlangen Ctr Astroparticle Phys, Erwin Rommel Str 1, D-91058 Erlangen, Germany..
    van Haren, H.
    Royal Netherlands Inst Sea Res NIOZ, Landsdiep 4, NL-1797 SZ Thorntje, Texel, Netherlands..
    Heijboer, A. J.
    Nikhef, Sci Pk, Amsterdam, Netherlands..
    Hello, Y.
    UCA, Geoazur, CNRS, Observ Cote Azur,IRD, Sophia Antipolis, France..
    Hernandez-Rey, J. J.
    Univ Paris Diderot, APC, CNRS IN2P3, Observ Paris,CEA IRFU,Sorbonne Paris Cite, F-75205 Paris, France..
    Hossl, J.
    Friedrich Alexander Univ Erlangen Nurnberg, Erlangen Ctr Astroparticle Phys, Erwin Rommel Str 1, D-91058 Erlangen, Germany..
    Hofestadt, J.
    Friedrich Alexander Univ Erlangen Nurnberg, Erlangen Ctr Astroparticle Phys, Erwin Rommel Str 1, D-91058 Erlangen, Germany..
    Hugon, C.
    Ist Nazl Fis Nucl, Sez Genova, Via Dodecaneso 33, I-16146 Genoa, Italy.;Univ Genoa, Dipartimento Fis, Via Dodecaneso 33, I-16146 Genoa, Italy..
    Illuminati, G.
    Univ Valencia, CSIC, IFIC Inst Fis Corpuscular, C Catedratico Jose Beltran 2, E-46980 Valencia, Spain.;Ist Nazl Fis Nucl, Sez Roma, Ple Aldo Moro 2, I-00185 Rome, Italy.;Univ Roma La Sapienza, Dipartimento Fis, Ple Aldo Moro 2, I-00185 Rome, Italy..
    James, C. W. C. W.
    Friedrich Alexander Univ Erlangen Nurnberg, Erlangen Ctr Astroparticle Phys, Erwin Rommel Str 1, D-91058 Erlangen, Germany..
    de Jong, M.
    Nikhef, Sci Pk, Amsterdam, Netherlands.;Leiden Univ, Huygens Karnerlingh Onnes Lab, Leiden, Netherlands..
    Jongen, M.
    Nikhef, Sci Pk, Amsterdam, Netherlands..
    Kadler, M.
    Univ Wurzburg, Inst Theoret Phys & Astrophys, Emil Fischer Str 31, D-97074 Wurzburg, Germany..
    Kalekin, O.
    Friedrich Alexander Univ Erlangen Nurnberg, Erlangen Ctr Astroparticle Phys, Erwin Rommel Str 1, D-91058 Erlangen, Germany..
    Katz, U.
    Friedrich Alexander Univ Erlangen Nurnberg, Erlangen Ctr Astroparticle Phys, Erwin Rommel Str 1, D-91058 Erlangen, Germany..
    Kiessling, D.
    Friedrich Alexander Univ Erlangen Nurnberg, Erlangen Ctr Astroparticle Phys, Erwin Rommel Str 1, D-91058 Erlangen, Germany..
    Kouchner, A.
    Univ Paris Diderot, APC, CNRS IN2P3, Observ Paris,CEA IRFU,Sorbonne Paris Cite, F-75205 Paris, France..
    Kreter, M.
    Univ Wurzburg, Inst Theoret Phys & Astrophys, Emil Fischer Str 31, D-97074 Wurzburg, Germany..
    Kreykenbohm, I.
    Univ Erlangen Nurnberg, Dr Remeis Stemwarte & ECAP, Sternwartstr 7, D-96049 Bamberg, Germany..
    Kulikovskiy, V.
    Aix Marseille Univ, CNRS IN2P3, CPPM UMR 7346, F-13288 Marseille, France.;Moscow MV Lomonosov State Univ, Skobeltsyn Inst Nucl Phys, Leninskie Gory, Moscow 119991, Russia..
    Lachaud, C.
    Univ Paris Diderot, APC, CNRS IN2P3, Observ Paris,CEA IRFU,Sorbonne Paris Cite, F-75205 Paris, France..
    Lahmann, R.
    Friedrich Alexander Univ Erlangen Nurnberg, Erlangen Ctr Astroparticle Phys, Erwin Rommel Str 1, D-91058 Erlangen, Germany..
    Lefevre, D.
    Aix Marseille Univ, MIO, F-13288 Marseille 9, France.;Univ Sud Toulon Var, F-83957 La Garde, France.;CNRS INSU IRD UM 110, Paris, France..
    Leonora, E.
    Ist Nazl Fis Nucl, Sez Catania, Viale Andrea Doria 6, I-95125 Catania, Italy.;Univ Catania, Dipartimento Fis & Astron, Viale Andrea Doria 6, I-95125 Catania, Italy..
    Lotze, M.
    Univ Valencia, CSIC, IFIC Inst Fis Corpuscular, C Catedratico Jose Beltran 2, E-46980 Valencia, Spain..
    Loucatos, S.
    Univ Paris Diderot, APC, CNRS IN2P3, Observ Paris,CEA IRFU,Sorbonne Paris Cite, F-75205 Paris, France.;CEA Saclay, Direct Sci Matiere, Inst Rech Lois Fondamentales Univers, Serv Phys Particules, F-91191 Gif Sur Yvette, France..
    Marcelin, M.
    Pole Etoile Site Chateau Gombert, LAM, Rue Frederic Joliot Curie 38, F-13388 Marseille 13, France..
    Margiotta, A.
    Ist Nazl Fis Nucl, Sez Bologna, Viale Berti Pichat 6-2, I-40127 Bologna, Italy.;Univ Bologna, Dipartimento Fis & Astron, Viale Berti Pichat 6-2, I-40127 Bologna, Italy..
    Marinelli, A.
    Ist Nazl Fis Nucl, Sez Pisa, Largo B Pontecorvo 3, I-56127 Pisa, Italy.;Univ Pisa, Dipartimento Fis, Largo B Pontecorvo 3, I-56127 Pisa, Italy..
    Martinez-Mora, J. A.
    Univ Politecn Valencia, Inst Invest Gestio Integrada Zones Costaneres IGI, C Paranimf 1, E-46730 Gandia, Spain..
    Mathieu, A.
    Aix Marseille Univ, CNRS IN2P3, CPPM UMR 7346, F-13288 Marseille, France..
    Mele, R.
    Ist Nazl Fis Nucl, Sez Napoli, Via Cintia, I-80126 Naples, Italy.;Univ Naples Federico II, Dipartimento Fis, Via Cintia, I-80126 Naples, Italy..
    Melis, K.
    Univ Amsterdam, Aston Pannekoek Inst, Postbus NL 94249, NL-1090 GE Amsterdam, Netherlands.;Nikhef, Sci Pk, Amsterdam, Netherlands..
    Michael, T.
    Nikhef, Sci Pk, Amsterdam, Netherlands..
    Migliozzi, P.
    Ist Nazl Fis Nucl, Sez Napoli, Via Cintia, I-80126 Naples, Italy..
    Moussa, A.
    Univ Mohammed 1, Lab Phys Matter & Radiat, BP 7I7, Oujda 6000, Morocco..
    Mueller, C.
    Univ Wurzburg, Inst Theoret Phys & Astrophys, Emil Fischer Str 31, D-97074 Wurzburg, Germany..
    Nezri, E.
    Pole Etoile Site Chateau Gombert, LAM, Rue Frederic Joliot Curie 38, F-13388 Marseille 13, France..
    Pavalas, G. E.
    Inst Space Sci, RO-077125 Bucharest, Magurele, Romania..
    Pellegrino, C.
    Ist Nazl Fis Nucl, Sez Bologna, Viale Berti Pichat 6-2, I-40127 Bologna, Italy.;Univ Bologna, Dipartimento Fis & Astron, Viale Berti Pichat 6-2, I-40127 Bologna, Italy..
    Perrina, C.
    Ist Nazl Fis Nucl, Sez Roma, Ple Aldo Moro 2, I-00185 Rome, Italy.;Univ Roma La Sapienza, Dipartimento Fis, Ple Aldo Moro 2, I-00185 Rome, Italy..
    Piattelli, P.
    Ist Nazl Fis Nucl, LNS, Via S Sofia 62, I-95123 Catania, Italy..
    Popa, V.
    Inst Space Sci, RO-077125 Bucharest, Magurele, Romania..
    Pradier, T.
    Univ Strasbourg, IPHC, 23 Rue Loess, F-67037 Strasbourg, France.;CNRS, UMR7178, F-67037 Strasbourg, France..
    Quinn, L.
    Aix Marseille Univ, CNRS IN2P3, CPPM UMR 7346, F-13288 Marseille, France..
    Racca, C.
    Univ Haute Alsace, GRPHE, Inst Univ Technol Colmar, 34 Rue Grillenbreit BP F 68008, F-68008 Colmar, France..
    Riccobene, G.
    Ist Nazl Fis Nucl, LNS, Via S Sofia 62, I-95123 Catania, Italy..
    Roensch, K.
    Friedrich Alexander Univ Erlangen Nurnberg, Erlangen Ctr Astroparticle Phys, Erwin Rommel Str 1, D-91058 Erlangen, Germany..
    Sanchez-Losa, A.
    Ist Nazl Fis Nucl, Sez Bari, Via E Orabona 4, I-70126 Bari, Italy..
    Saldana, M.
    Univ Politecn Valencia, Inst Invest Gestio Integrada Zones Costaneres IGI, C Paranimf 1, E-46730 Gandia, Spain..
    Salvadori, I.
    Aix Marseille Univ, CNRS IN2P3, CPPM UMR 7346, F-13288 Marseille, France..
    Samtleben, D. F. E.
    Nikhef, Sci Pk, Amsterdam, Netherlands.;Leiden Univ, Huygens Karnerlingh Onnes Lab, Leiden, Netherlands..
    Sanguineti, M.
    Ist Nazl Fis Nucl, Sez Genova, Via Dodecaneso 33, I-16146 Genoa, Italy.;Univ Genoa, Dipartimento Fis, Via Dodecaneso 33, I-16146 Genoa, Italy..
    Sapienza, P.
    Ist Nazl Fis Nucl, LNS, Via S Sofia 62, I-95123 Catania, Italy..
    Schnabel, J.
    Friedrich Alexander Univ Erlangen Nurnberg, Erlangen Ctr Astroparticle Phys, Erwin Rommel Str 1, D-91058 Erlangen, Germany..
    Seitz, T.
    Friedrich Alexander Univ Erlangen Nurnberg, Erlangen Ctr Astroparticle Phys, Erwin Rommel Str 1, D-91058 Erlangen, Germany..
    Sieger, C.
    Friedrich Alexander Univ Erlangen Nurnberg, Erlangen Ctr Astroparticle Phys, Erwin Rommel Str 1, D-91058 Erlangen, Germany..
    Spurio, M.
    Ist Nazl Fis Nucl, Sez Bologna, Viale Berti Pichat 6-2, I-40127 Bologna, Italy.;Univ Bologna, Dipartimento Fis & Astron, Viale Berti Pichat 6-2, I-40127 Bologna, Italy..
    Stolarczyk, Th.
    CEA Saclay, Direct Sci Matiere, Inst Rech Lois Fondamentales Univers, Serv Phys Particules, F-91191 Gif Sur Yvette, France..
    Taiuti, M.
    Ist Nazl Fis Nucl, Sez Genova, Via Dodecaneso 33, I-16146 Genoa, Italy.;Univ Genoa, Dipartimento Fis, Via Dodecaneso 33, I-16146 Genoa, Italy..
    Tayalati, Y.
    Univ Mohammed Rabat, Fac Sci, 4 Av Ibn Battouta,BP 1014,RP 10000, Rabat, Morocco..
    Trovato, A.
    Ist Nazl Fis Nucl, LNS, Via S Sofia 62, I-95123 Catania, Italy..
    Tselengidou, M.
    Friedrich Alexander Univ Erlangen Nurnberg, Erlangen Ctr Astroparticle Phys, Erwin Rommel Str 1, D-91058 Erlangen, Germany..
    Turpin, D.
    Aix Marseille Univ, CNRS IN2P3, CPPM UMR 7346, F-13288 Marseille, France..
    Tonnis, C.
    Univ Valencia, CSIC, IFIC Inst Fis Corpuscular, C Catedratico Jose Beltran 2, E-46980 Valencia, Spain..
    Vallage, B.
    Univ Paris Diderot, APC, CNRS IN2P3, Observ Paris,CEA IRFU,Sorbonne Paris Cite, F-75205 Paris, France.;CEA Saclay, Direct Sci Matiere, Inst Rech Lois Fondamentales Univers, Serv Phys Particules, F-91191 Gif Sur Yvette, France..
    Vallee, C.
    Aix Marseille Univ, CNRS IN2P3, CPPM UMR 7346, F-13288 Marseille, France..
    Van Elewyck, V.
    Univ Paris Diderot, APC, CNRS IN2P3, Observ Paris,CEA IRFU,Sorbonne Paris Cite, F-75205 Paris, France..
    Vivolo, D.
    Ist Nazl Fis Nucl, Sez Napoli, Via Cintia, I-80126 Naples, Italy.;Univ Naples Federico II, Dipartimento Fis, Via Cintia, I-80126 Naples, Italy..
    Vizzoca, A.
    Ist Nazl Fis Nucl, Sez Roma, Ple Aldo Moro 2, I-00185 Rome, Italy.;Univ Roma La Sapienza, Dipartimento Fis, Ple Aldo Moro 2, I-00185 Rome, Italy..
    Wagner, S.
    Friedrich Alexander Univ Erlangen Nurnberg, Erlangen Ctr Astroparticle Phys, Erwin Rommel Str 1, D-91058 Erlangen, Germany..
    Wilms, J.
    Univ Erlangen Nurnberg, Dr Remeis Stemwarte & ECAP, Sternwartstr 7, D-96049 Bamberg, Germany..
    Zornoza, J. D.
    Univ Valencia, CSIC, IFIC Inst Fis Corpuscular, C Catedratico Jose Beltran 2, E-46980 Valencia, Spain..
    Zuniga, J.
    Univ Valencia, CSIC, IFIC Inst Fis Corpuscular, C Catedratico Jose Beltran 2, E-46980 Valencia, Spain..
    Abdalla, H.
    North West Univ, Ctr Space Res, Potchefstroom 2520, ZA-2520 Potchefstroom, South Africa..
    Abramowski, A.
    Friedrich Alexander Univ Erlangen Nurnberg, Erlangen Ctr Astroparticle Phys, Erwin Rommel Str 1, D-91058 Erlangen, Germany.;Nikhef, Sci Pk, Amsterdam, Netherlands.;Univ Roma La Sapienza, Dipartimento Fis, Ple Aldo Moro 2, I-00185 Rome, Italy.;Univ Hamburg, Inst Phys Expt, Luruper Chaussee 149, D-22761 Hamburg, Germany.;Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany..
    Aharonian, F.
    Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany.;Dublin Inst Adv Studies, 31 Fitzwilliam Pl, Dublin 2, Ireland.;Natl Acad Sci Republ Armenia, Marshall Baghramian Ave 24, Yerevan 0019, Armenia..
    Benkhali, F. Ait
    Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany..
    Akhperjanian, A. G.
    Natl Acad Sci Republ Armenia, Marshall Baghramian Ave 24, Yerevan 0019, Armenia.;Yerevan Phys Inst, 2 Alikhanian Bros St, Yerevan 375036, Armenia..
    Andersson, T.
    Linnéuniversitetet, Fakulteten för teknik (FTK), Institutionen för fysik och elektroteknik (IFE).
    Anguner, E. O.
    Humboldt Univ, Inst Phys, Newtonstr 15, D-12489 Berlin, Germany..
    Arrieta, M.
    Univ Paris Diderot, PSLRes Univ, Observ Paris, LUTH,CNRS, 5 Pl Jules Janssen, F-92190 Meudon, France..
    Aubert, P.
    Univ Savoie Mt Blanc, Lab Annecy Le Vieux Phys Particules, CNRS IN2P3, F-74941 Annecy Le Vieux, France..
    Backes, M.
    Univ Namibia, Dept Phys, Private Bag 13301, Windhoek, Namibia..
    Balzer, A.
    Univ Amsterdam, Astron Inst Anton Pannekoek, GRAPPA, Sci Pk 904, NL-1098 XH Amsterdam, Netherlands..
    Barnard, M.
    North West Univ, Ctr Space Res, Potchefstroom 2520, ZA-2520 Potchefstroom, South Africa..
    Becherini, Yvonne
    Linnéuniversitetet, Fakulteten för teknik (FTK), Institutionen för fysik och elektroteknik (IFE).
    Tjus, J. Becker
    Ruhr Univ Bochum, Inst Theoret Phys, Lehrstuhl Weltraum & Astrophys 4, D-44780 Bochum, Germany..
    Berge, D.
    Univ Amsterdam, Astron Inst Anton Pannekoek, GRAPPA, Sci Pk 904, NL-1098 XH Amsterdam, Netherlands..
    Bernhard, S.
    Leopold Franzens Univ Innsbruck, Inst Astro & Teilchenphys, A-6020 Innsbruck, Austria..
    Bernlohr, K.
    Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany..
    Blackwell, R.
    Univ Adelaide, Sch Phys Sci, Adelaide, SA 5005, Australia..
    Bottcher, M.
    North West Univ, Ctr Space Res, Potchefstroom 2520, ZA-2520 Potchefstroom, South Africa..
    Boisson, C.
    Univ Paris Diderot, PSLRes Univ, Observ Paris, LUTH,CNRS, 5 Pl Jules Janssen, F-92190 Meudon, France..
    Bolmont, J.
    Univ Paris Diderot, UPMC Univ Paris 06, Sorbonne Univ, Sorbonne Paris Cite,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, Lab Univers & Particules Montpellier, CNRS IN2P3, CC 72, Pl Eugene Bataillon, F-34095 Montpellier, France..
    Brun, F.
    Univ Bordeaux, CNRS IN2P3, Ctr Nucl Bordeaux Gradignan, F-33175 Gradignan, France..
    Brun, P.
    CEA Saclay, Direct Sci Matiere, Inst Rech Lois Fondamentales Univers, Serv Phys Particules, 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..
    Capasso, M.
    Univ Tubingen, Inst Astron & Astrophys, Sand 1, D-72076 Tubingen, Germany..
    Casanova, S.
    Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany.;Inst Fizyki Jadrowej PAN, Ul Radzikowskiego 152, PL-31342 Krakow, Poland..
    Cerruti, M.
    Univ Paris Diderot, UPMC Univ Paris 06, Sorbonne Univ, Sorbonne Paris Cite,LPNHE, 4 Pl Jussieu, F-75252 Paris 5, France..
    Chakraborty, N.
    Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany..
    Chalme-Calvet, R.
    Univ Paris Diderot, UPMC Univ Paris 06, Sorbonne Univ, Sorbonne Paris Cite,LPNHE, 4 Pl Jussieu, F-75252 Paris 5, France..
    Chaves, R. C. G.
    Univ Montpellier, Lab Univers & Particules Montpellier, CNRS IN2P3, CC 72, Pl Eugene Bataillon, F-34095 Montpellier, France..
    Chen, A.
    Univ Witwatersrand, Sch Phys, 1 Jan Smuts Ave, ZA-2050 Johannesburg, South Africa..
    Chevalier, J.
    Univ Savoie Mt Blanc, Lab Annecy Le Vieux Phys Particules, CNRS IN2P3, F-74941 Annecy Le Vieux, France..
    Chretien, M.
    Univ Paris Diderot, UPMC Univ Paris 06, Sorbonne Univ, Sorbonne Paris Cite,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 Nucl Bordeaux Gradignan, F-33175 Gradignan, France..
    Conrad, J.
    Stockholm Univ, Albanova Univ Ctr, Dept Phys, Oskar Klein Ctr, SE-10691 Stockholm, Sweden..
    Cui, Y.
    Univ Tubingen, Inst Astron & Astrophys, Sand 1, D-72076 Tubingen, Germany..
    Davids, I. D.
    North West Univ, Ctr Space Res, Potchefstroom 2520, ZA-2520 Potchefstroom, South Africa..
    Decock, J.
    CEA Saclay, Direct Sci Matiere, Inst Rech Lois Fondamentales Univers, Serv Phys Particules, F-91191 Gif Sur Yvette, France..
    Degrange, B.
    Univ Grenoble Alpes, IPAG, F-38000 Grenoble, France.;CNRS, IPAG, F-38000 Grenoble, France..
    Deil, C.
    Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany..
    Devin, J.
    Univ Montpellier, Lab Univers & Particules Montpellier, CNRS IN2P3, CC 72, Pl Eugene Bataillon, F-34095 Montpellier, France..
    de Wilt, P.
    Univ Adelaide, Sch Phys Sci, Adelaide, SA 5005, Australia..
    Dirson, L.
    Univ Hamburg, Inst Phys Expt, Luruper Chaussee 149, D-22761 Hamburg, Germany..
    Djannati-Atai, A.
    Univ Paris Diderot, APC, CNRS IN2P3, Observ Paris,CEA IRFU,Sorbonne Paris Cite, F-75205 Paris, 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..
    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
    Eschbach, S.
    Friedrich Alexander Univ Erlangen Nurnberg, Erlangen Ctr Astroparticle Phys, Erwin Rommel Str 1, D-91058 Erlangen, Germany..
    Farnier, Christian
    Linnéuniversitetet, Fakulteten för teknik (FTK), Institutionen för fysik och elektroteknik (IFE). Stockholm University.
    Fegan, S.
    Ecole Polytech, Lab Leprince Ringuet, CNRS IN2P3, F-91128 Palaiseau, France..
    Fernandes, M. V.
    Univ Hamburg, Inst Phys Expt, Luruper Chaussee 149, D-22761 Hamburg, Germany..
    Fiasson, A.
    Univ Savoie Mt Blanc, Lab Annecy Le Vieux Phys Particules, CNRS IN2P3, F-74941 Annecy Le Vieux, France..
    Fontaine, G.
    Ecole Polytech, Lab Leprince Ringuet, CNRS IN2P3, F-91128 Palaiseau, France..
    Forster, A.
    Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany..
    Funk, S.
    Friedrich Alexander Univ Erlangen Nurnberg, Erlangen Ctr Astroparticle Phys, Erwin Rommel Str 1, D-91058 Erlangen, Germany..
    Fussling, M.
    DESY, D-15738 Zeuthen, Germany..
    Gabici, S.
    Univ Paris Diderot, APC, CNRS IN2P3, Observ Paris,CEA IRFU,Sorbonne Paris Cite, F-75205 Paris, France..
    Gajdus, M.
    Humboldt Univ, Inst Phys, Newtonstr 15, D-12489 Berlin, Germany..
    Gallant, Y. A.
    Univ Montpellier, Lab Univers & Particules Montpellier, CNRS IN2P3, CC 72, Pl Eugene Bataillon, F-34095 Montpellier, France..
    Garrigoux, T.
    North West Univ, Ctr Space Res, Potchefstroom 2520, ZA-2520 Potchefstroom, South Africa..
    Giavitto, G.
    DESY, D-15738 Zeuthen, Germany..
    Giebels, B.
    Ecole Polytech, Lab Leprince Ringuet, CNRS IN2P3, F-91128 Palaiseau, France..
    Glicenstein, J. F.
    CEA Saclay, Direct Sci Matiere, Inst Rech Lois Fondamentales Univers, Serv Phys Particules, F-91191 Gif Sur Yvette, France..
    Gottschall, D.
    Univ Tubingen, Inst Astron & Astrophys, Sand 1, D-72076 Tubingen, Germany..
    Goya, A.
    Uniwersytet Jagiellonski, Obserwatorium Astron, Ul Orla 171, PL-30244 Krakow, Poland..
    Grondin, M. -H
    Hadasch, D.
    Leopold Franzens Univ Innsbruck, Inst Astro & Teilchenphys, A-6020 Innsbruck, Austria..
    Hahn, J.
    Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany..
    Haupt, M.
    DESY, D-15738 Zeuthen, Germany..
    Hawkes, J.
    Univ Adelaide, Sch Phys Sci, Adelaide, SA 5005, Australia..
    Heinzelmann, G.
    Univ Hamburg, Inst Phys Expt, Luruper Chaussee 149, D-22761 Hamburg, Germany..
    Henri, G.
    Univ Grenoble Alpes, IPAG, F-38000 Grenoble, France.;CNRS, IPAG, F-38000 Grenoble, France..
    Prokhorov, Dmitry
    Linnéuniversitetet, Fakulteten för teknik (FTK), Institutionen för fysik och elektroteknik (IFE).
    Prokoph, Heike
    Linnéuniversitetet, Fakulteten för teknik (FTK), Institutionen för fysik och elektroteknik (IFE).
    Punch, Michael
    Linnéuniversitetet, Fakulteten för teknik (FTK), Institutionen för fysik och elektroteknik (IFE). Univ Paris Diderot, France.
    A polarized fast radio burst at low Galactic latitude2017Ingår i: Monthly notices of the Royal Astronomical Society, ISSN 0035-8711, E-ISSN 1365-2966, Vol. 469, nr 4, s. 4465-4482Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    We report on the discovery of a new fast radio burst (FRB), FRB 150215, with the Parkes radio telescope on 2015 February 15. The burst was detected in real time with a dispersion measure (DM) of 1105.6 +/- 0.8 pc cm(-3), a pulse duration of 2.8(-0.5)(+1.2) ms, and a measured peak flux density assuming that the burst was at beam centre of 0.7(-0.1)(+0.2) Jy. The FRB originated at a Galactic longitude and latitude of 24.66 degrees, 5.28 degrees and 25 degrees away from the Galactic Center. The burst was found to be 43 +/- 5 per cent linearly polarized with a rotation measure (RM) in the range -9 < RM < 12 rad m(-2) (95 per cent confidence level), consistent with zero. The burst was followed up with 11 telescopes to search for radio, optical, X-ray, gamma-ray and neutrino emission. Neither transient nor variable emission was found to be associated with the burst and no repeat pulses have been observed in 17.25 h of observing. The sightline to the burst is close to the Galactic plane and the observed physical properties of FRB 150215 demonstrate the existence of sight lines of anomalously low RM for a given electron column density. The Galactic RM foreground may approach a null value due to magnetic field reversals along the line of sight, a decreased total electron column density from the Milky Way, or some combination of these effects. A lower Galactic DM contribution might explain why this burst was detectable whereas previous searches at low latitude have had lower detection rates than those out of the plane.

  • 106. Pita, S.
    et al.
    Goldoni, P.
    Boisson, C.
    Becherini, Yvonne
    Gerard, L.
    Lenain, J. -P
    Punch, Michael
    High energy blazars spectroscopy with X-Shooter on the VLT2012Ingår i: High energy gamma-ray astronomy, American Institute of Physics (AIP), 2012, s. 566-569Konferensbidrag (Refereegranskat)
    Abstract [en]

    We present results of observations in the UV to near-IR range for eight blazars, three of which have been recently discovered at Very High Energies (VHE) and five appearing as interesting candidates for VHE gamma-ray detection. We focus in this paper on the search for their redshifts, which are unknown or considered as uncertain.

  • 107. Pita, S.
    et al.
    Goldoni, P.
    Boisson, C.
    Lenain, J. -P
    Punch, Michael
    Paris Diderot University, France.
    Gerard, L.
    Hammer, F.
    Kaper, L.
    Sol, H.
    Spectroscopy of high-energy BL Lacertae objects with X-shooter on the VLT2014Ingår i: Astronomy and Astrophysics, ISSN 0004-6361, E-ISSN 1432-0746, Vol. 565, s. 1-20, artikel-id A12Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Context. BL Lac objects detected in gamma-rays and, particularly, those detected at very high energies (E > 100 GeV) by Cherenkov telescopes are extreme sources with most having redshifts lower than 0.2. Their study gives insights on the acceleration mechanisms in play in such systems and is also a valuable tool for putting constraints on the density of extragalactic background light, especially if several objects are detected at different redshifts. As their spectra are dominated by the non-thermal emission of the jet and the spectral features are weak and narrow in the optical domain, measuring their redshift is challenging. However, such a measure is fundamental as it allows a firm determination of the distance and luminosity of the source, and, therefore, a consistent model of its emission. Aims. Measurement of the redshift of BL Lac objects detected in gamma-rays and determination of global properties of their host galaxies is the aim of this study. Methods. We observed a sample of eight BL Lac objects with the X-shooter spectrograph installed at the ESO Very Large Telescope (VLT) to take advantage of its unprecedented wavelength coverage and its resolution, which is about five times higher than generally used in such studies. We extracted UVB to NIR spectra that we then corrected for telluric absorption and calibrated in flux. We systematically searched for spectral features. When possible, we determined the contribution of the host galaxy to the overall emission. Results. Of the eight BL Lac sources, we measured the redshift of five of them and determined lower limits for two through the detection of intervening systems. All seven of these objects have redshifts greater than 0.2. For the remaining one, we estimated, using an indirect method, that its redshift is greater than 0.175. In two cases, we refuted redshift values reported in other publications. Through careful modelling, we determined the magnitude of the host galaxies. In two cases, the detection of emission lines allowed to provide hints on the overall properties of the gas in the host galaxies. Even though we warn that we are dealing with a very small sample, we remark that the redshift determination efficiency of our campaign is higher than for previous campaigns. We argue that it is mainly the result of the comparatively higher resolution of X-shooter.

  • 108.
    Thoudam, Satyendra
    et al.
    Linnéuniversitetet, Fakulteten för teknik (FTK), Institutionen för fysik och elektroteknik (IFE).
    Becherini, Yvonne
    Linnéuniversitetet, Fakulteten för teknik (FTK), Institutionen för fysik och elektroteknik (IFE).
    Punch, Michael
    Linnéuniversitetet, Fakulteten för teknik (FTK), Institutionen för fysik och elektroteknik (IFE).
    Simulation study for the proposed wide field-of-view gamma-ray detector array ALTO2018Ingår i: Proceedings of Science: 35th International Cosmic Ray Conference, ICRC 2017, 10 -20 July 2017, Bexico, South Korea, Sissa Medialab Srl , 2018Konferensbidrag (Refereegranskat)
    Abstract [en]

    ALTO is a wide field-of-view air shower detector array for very-high-energy (VHE) gamma-ray astronomy, proposed to be installed in the Southern Hemisphere at an altitude of ∼5.1 km above sea level. The array will use water Cherenkov detectors, as in the HAWC observatory, but combined with scintillator detectors, to detect air showers induced by VHE gamma rays in the atmosphere. It is being designed to attain a lower energy threshold, better energy and angular resolution, and improved sensitivity. The array will consist of ∼1250 small-sized (3.6 m diameter) detector units distributed over a circular area of ∼160 m in diameter. Each detector unit will consist of a water Cherenkov detector and a liquid scintillation detector underneath which will preferentially identify muons, facilitating the background (cosmic ray) rejection, thereby improving the sensitivity. The background rejection will be further enhanced by the close-packed arrangement and the small size of the detectors which will allow a fine sampling of air-shower footprints at the ground. In this contribution, we present the Monte-Carlo simulation of the experiment performed using CORSIKA and GEANT4 simulation packages. The expected performance of the array in terms of reconstruction accuracies of the shower core and arrival direction, as well as preliminary estimate of the trigger energy threshold after preliminary selection cuts for a point-like gamma-ray source are presented. © Copyright owned by the author(s) under the terms of the Creative Commons Attribution-Non Commercial-No Derivatives 4.0 International License (CC BY-NC-ND 4.0).

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