Search for Dark Matter Annihilations towards the Inner Galactic Halo from 10 Years of Observations with HESS

Abdallah, H.; Abramowski, A.; Aharonian, F.; Benkhali, F. Ait; Akhperjanian, A. G.; Anguener, E.; Arrieta, M.; Aubert, P.; Backes, M.; Balzer, A.; Barnard, M.; Becherini, Yvonne; Tjus, J. Becker; Berge, D.; Bernhard, S.; Bernloehr, K.; Birsin, E.; Blackwell, R.; Bottcher, M.; Boisson, C.; Bolmont, J.; Bordas, P.; Bregeon, J.; Brun, F.; Brun, P.; Bryan, M.; Bulik, T.; Capasso, M.; Carr, J.; Casanova, S.; Chakraborty, N.; Chalme-Calvet, R.; Chaves, R. C. G.; Chen, A.; Chevalier, J.; Chretien, M.; Colafrancesco, S.; Cologna, G.; Condon, B.; 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.; Ernenwein, J. -P; Eschbach, S.; Farnier, C.; Fegan, S.; Fernandes, M. V.; Fiasson, A.; Fontaine, G.; Foerster, A.; Funk, S.; Fuessling, M.; Gabici, S.; Gajdus, M.; Gallant, Y. A.; Garrigoux, T.; Giavitto, G.; Giebels, B.; Glicenstein, J. F.; Gottschall, D.; Goyal, A.; Grondin, M. -H; Grudzinska, M.; Hadasch, D.; Hahn, J.; Hawkes, J.; Heinzelmann, G.; Henri, G.; Hermann, G.; Hervet, O.; Hillert, A.; Hinton, J. A.; Hofmann, W.; Hoischen, C.; Holler, M.; Horns, D.; Ivascenko, A.; Jacholkowska, A.; Jamrozy, M.; Janiak, M.; Jankowsky, D.; Jankowsky, F.; Jingo, M.; Jogler, T.; Jouvin, L.; Jung-Richardt, I.; Kastendieck, M. A.; Katarzynski, K.; Katz, U.; Kerszberg, D.; Khelifi, B.; Kieffer, M.; King, J.; Klepser, S.; Klochkov, D.; Kluzniak, W.; Kolitzus, D.; Komin, Nu.; Kosack, K.; Krakau, S.; Kraus, M.; Krayzel, F.; Kruger, P. P.; Laffon, H.; Lamanna, G.; Lau, J.; Lees, J. -P; Lefaucheur, J.; Lefranc, V.; Lemiere, A.; Lemoine-Goumard, M.; Lenain, J. -P; Leser, E.; Lohse, T.; Lorentz, M.; Lui, R.; Lypova, I.; Marandon, V.; Marcowith, A.; Mariaud, C.; Marx, R.; Maurin, G.; Maxted, N.; Mayer, M.; Meintjes, P. J.; Menzler, U.; Meyer, M.; Mitchell, A. M. W.; Moderski, R.; Mohamed, M.; Mora, K.; Moulin, E.; Murach, T.; de Naurois, M.; Niederwanger, F.; Niemiec, J.; Oakes, L.; Odaka, H.; Ohm, S.; Oettl, S.; Ostrowski, M.; Oya, I.; Padovani, M.; Panter, M.; Parsons, R. D.; Arribas, M. Paz; Pekeur, N. W.; Pelletier, G.; Petrucci, P. -O; Peyaud, B.; Pita, S.; Poon, H.; Prokhorov, Dmitry; Prokoph, Heike; Puehlhofer, G.; Punch, Michael; Quirrenbach, A.; Raab, S.; 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.; Sasaki, M.; Schlickeiser, R.; Schussler, F.; Schulz, A.; Schwanke, U.; Schwemmer, S.; Seyffert, A. S.; Shafi, N.; Simoni, R.; Sol, H.; Spanier, F.; Spengler, G.; Spiess, 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.; Tuffs, R.; van der Walt, J.; van Eldik, C.; van Soelen, B.; Vasileiadis, G.; Veh, J.; Venter, C.; Viana, A.; Vincent, P.; Vink, J.; Voisin, F.; Voelk, H. J.; Vuillaume, T.; Wadiasingh, Z.; Wagner, S. J.; Wagner, P.; Wagner, R. M.; White, R.; Wierzcholska, A.; Willmann, P.; Woernlein, A.; Wouters, D.; Yang, R.; Zabalza, V.; Zaborov, D.; Zacharias, M.; Zdziarski, A. A.; Zech, A.; Zefi, F.; Ziegler, A.; Zywucka, N.

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Search for Dark Matter Annihilations towards the Inner Galactic Halo from 10 Years of Observations with HESS

Abdallah, H.

North West Univ, South Africa.

Abramowski, A.

Univ Hamburg, Germany.

Aharonian, F.

Max Planck Inst Kernphys, Germany ; Dublin Inst Adv Studies, Ireland.

Benkhali, F. Ait

Max Planck Inst Kernphys, Germany.

Akhperjanian, A. G.

Anguener, E.

Arrieta, M.

Aubert, P.

Backes, M.

Balzer, A.

Barnard, M.

Becherini, Yvonne

Tjus, J. Becker

Berge, D.

Bernhard, S.

Bernloehr, K.

Birsin, E.

Blackwell, R.

Bottcher, M.

Boisson, C.

Bolmont, J.

Bordas, P.

Bregeon, J.

Brun, F.

Brun, P.

Bryan, M.

Bulik, T.

Capasso, M.

Carr, J.

Casanova, S.

Chakraborty, N.

Chalme-Calvet, R.

Chaves, R. C. G.

Chen, A.

Chevalier, J.

Chretien, M.

Colafrancesco, S.

Cologna, G.

Condon, B.

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.

Ernenwein, J. -P

Eschbach, S.

Farnier, C.

Fegan, S.

Fernandes, M. V.

Fiasson, A.

Fontaine, G.

Foerster, A.

Funk, S.

Fuessling, M.

Gabici, S.

Gajdus, M.

Gallant, Y. A.

Garrigoux, T.

Giavitto, G.

Giebels, B.

Glicenstein, J. F.

Gottschall, D.

Goyal, A.

Grondin, M. -H

Grudzinska, M.

Hadasch, D.

Hahn, J.

Hawkes, J.

Heinzelmann, G.

Henri, G.

Hermann, G.

Hervet, O.

Hillert, A.

Hinton, J. A.

Hofmann, W.

Hoischen, C.

Holler, M.

Horns, D.

Ivascenko, A.

Jacholkowska, A.

Jamrozy, M.

Janiak, M.

Jankowsky, D.

Jankowsky, F.

Jingo, M.

Jogler, T.

Jouvin, L.

Jung-Richardt, I.

Kastendieck, M. A.

Katarzynski, K.

Katz, U.

Kerszberg, D.

Khelifi, B.

Kieffer, M.

King, J.

Klepser, S.

Klochkov, D.

Kluzniak, W.

Kolitzus, D.

Komin, Nu.

Kosack, K.

Krakau, S.

Kraus, M.

Krayzel, F.

Kruger, P. P.

Laffon, H.

Lamanna, G.

Lau, J.

Lees, J. -P

Lefaucheur, J.

Lefranc, V.

Lemiere, A.

Lemoine-Goumard, M.

Lenain, J. -P

Leser, E.

Lohse, T.

Lorentz, M.

Lui, R.

Lypova, I.

Marandon, V.

Marcowith, A.

Mariaud, C.

Marx, R.

Maurin, G.

Maxted, N.

Mayer, M.

Meintjes, P. J.

Menzler, U.

Meyer, M.

Mitchell, A. M. W.

Moderski, R.

Mohamed, M.

Mora, K.

Moulin, E.

Murach, T.

de Naurois, M.

Niederwanger, F.

Niemiec, J.

Oakes, L.

Odaka, H.

Ohm, S.

Oettl, S.

Ostrowski, M.

Oya, I.

Padovani, M.

Panter, M.

Parsons, R. D.

Arribas, M. Paz

Pekeur, N. W.

Pelletier, G.

Petrucci, P. -O

Peyaud, B.

Pita, S.

Poon, H.

Prokhorov, Dmitry

Prokoph, Heike

Puehlhofer, G.

Punch, Michael

Quirrenbach, A.

Raab, S.

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.

Sasaki, M.

Schlickeiser, R.

Schussler, F.

Schulz, A.

Schwanke, U.

Schwemmer, S.

Seyffert, A. S.

Shafi, N.

Simoni, R.

Sol, H.

Spanier, F.

Spengler, G.

Spiess, 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.

Tuffs, R.

van der Walt, J.

van Eldik, C.

van Soelen, B.

Vasileiadis, G.

Veh, J.

Venter, C.

Viana, A.

Vincent, P.

Vink, J.

Voisin, F.

Voelk, H. J.

Vuillaume, T.

Wadiasingh, Z.

Wagner, S. J.

Wagner, P.

Wagner, R. M.

White, R.

Wierzcholska, A.

Willmann, P.

Woernlein, A.

Wouters, D.

Yang, R.

Zabalza, V.

Zaborov, D.

Zacharias, M.

Zdziarski, A. A.

Zech, A.

Zefi, F.

Ziegler, A.

Zywucka, N.

Show others and affiliations

2016 (English)In: Physical Review Letters, ISSN 0031-9007, E-ISSN 1079-7114, Vol. 117, no 11, article id 111301Article in journal (Refereed) Published

Abstract [en]

The inner region of the Milky Way halo harbors a large amount of dark matter (DM). Given its proximity, it is one of the most promising targets to look for DM. We report on a search for the annihilations of DM particles using gamma-ray observations towards the inner 300 pc of the Milky Way, with the H.E.S.S. array of ground-based Cherenkov telescopes. The analysis is based on a 2D maximum likelihood method using Galactic Center (GC) data accumulated by H.E.S.S. over the last 10 years (2004-2014), and does not show any significant gamma-ray signal above background. Assuming Einasto and Navarro-Frenk-White DM density profiles at the GC, we derive upper limits on the annihilation cross section <sigma nu >. These constraints are the strongest obtained so far in the TeV DM mass range and improve upon previous limits by a factor 5. For the Einasto profile, the constraints reach <sigma nu > values of 6 x 10(-26) cm(3) s(-1) in the W+W- channel for a DM particle mass of 1.5 TeV, and 2 x 10(-26) cm(3) s(-1) in the tau(+)tau(-) channel for a 1 TeV mass. For the first time, ground-based gamma-ray observations have reached sufficient sensitivity to probe <sigma nu > values expected from the thermal relic density for TeV DM particles.

Place, publisher, year, edition, pages

2016. Vol. 117, no 11, article id 111301

National Category

Astronomy, Astrophysics and Cosmology

Research subject

Physics, Astroparticle Physics

Identifiers

URN: urn:nbn:se:lnu:diva-57086DOI: 10.1103/PhysRevLett.117.111301ISI: 000383248000001PubMedID: 27661677Scopus ID: 2-s2.0-84989843926OAI: oai:DiVA.org:lnu-57086DiVA, id: diva2:1033430

Available from: 2016-10-06 Created: 2016-10-06 Last updated: 2017-12-07Bibliographically approved

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Becherini, Yvonne Prokhorov, Dmitry Prokoph, Heike Punch, Michael

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