%0 Journal Article
%T Search for photon line-like signatures from Dark Matter annihilations with H.E.S.S
%+ Institut für Experimentalphysik [Hamburg]
%+ Laboratoire Univers et Particules de Montpellier (LUPM)
%+ Max-Planck-Institut für Kernphysik (MPIK)
%+ Dublin Institute for Advanced Studies (DIAS)
%+ National Academy of Sciences of the Republic of Armenia [Yerevan] (NAS RA)
%+ Yerevan Physics Institute
%+ Friedrich-Alexander Universität Erlangen-Nürnberg = University of Erlangen-Nuremberg (FAU)
%+ Department of Physics [Durham University]
%+ Deutsches Elektronen-Synchrotron [Zeuthen] (DESY)
%+ University of Potsdam = Universität Potsdam
%+ Nicolaus Copernicus University [Toruń]
%+ Laboratoire Leprince-Ringuet (LLR)
%+ AstroParticule et Cosmologie (APC (UMR_7164))
%+ Astronomisches Institut der Ruhr-Universität Bochum
%+ Humboldt-Universität zu Berlin = Humboldt University of Berlin = Université Humboldt de Berlin  (HU Berlin)
%+ Laboratoire Univers et Théories (LUTH (UMR_8102))
%+ Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE)
%+ Institut für Astronomie und Astrophysik [Tübingen] (IAAT)
%+ CEA- Saclay (CEA)
%+ Astronomical Observatory [Warsaw]
%+ North-West University [Potchefstroom] (NWU)
%+ University of the Witwatersrand [Johannesburg] (WITS)
%+ Zentrum für Astronomie der Universität Heidelberg (ZAH)
%+ Oskar Klein Centre [Stockholm]
%+ Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG)
%+ Namibia University of Science and Technology (NUST)
%+ University of South Australia [Adelaide]
%+ APC - Astrophysique des Hautes Energies (APC - AHE)
%+ Institut de Planétologie et d'Astrophysique de Grenoble (IPAG )
%+ Department of Physics and Astronomy [Leicester]
%+ Instytut Fizyki Jądrowej PAN (IFJ)
%+ Leopold Franzens Universität Innsbruck - University of Innsbruck
%+ Laboratoire d'Annecy de Physique des Particules (LAPP)
%+ Universität Heidelberg [Heidelberg] = Heidelberg University
%+ Max Planck Institute for Astronomy (MPIA)
%+ Uniwersytet Jagielloński w Krakowie = Jagiellonian University (UJ)
%+ Torun Centre for Astronomy (TCfA)
%+ Physikalisches Institut [Erlangen]
%+ Eberhard Karls Universität Tübingen = Eberhard Karls University of Tuebingen
%+ Institut für Theoretische Physik IV [Bochum] (ITP4)
%+ Space Research Centre [Torun]
%+ Astronomical Institute of Charles University
%+ Space Research Centre [Leicester]
%A Abramowski, A.
%A Acero, Fabio
%A Aharonian, F.
%A Akhperjanian, A. G.
%A Anton, G.
%A Balenderan, S.
%A Balzer, Agnès
%A Barnacka, A.
%A Becherini, Y.
%A Tjus, J. Becker
%A Bernlöhr, K.
%A Birsin, E.
%A Biteau, J.
%A Bochow, A.
%A Boisson, C.
%A Bolmont, J.
%A Bordas, P.
%A Brucker, J.
%A Brun, F.
%A Brun, P.
%A Bulik, T.
%A Carrigan, S.
%A Casanova, S.
%A Cerruti, M.
%A Chadwick, P. M.
%A Chaves, R. C. G.
%A Cheesebrough, A.
%A Colafrancesco, S.
%A Cologna, G.
%A Conrad, J.
%A Couturier, C.
%A Dalton, M.
%A Daniel, M. K.
%A Davids, I. D.
%A Degrange, B.
%A Deil, C.
%A Dewilt, P.
%A Dickinson, H. J.
%A Djannati-Ataï, A.
%A Domainko, W.
%A Drury, L. O'C.
%A Dubus, G.
%A Dutson, K.
%A Dyks, J.
%A Dyrda, M.
%A Egberts, K.
%A Eger, P.
%A Espigat, P.
%A Fallon, L.
%A Farnier, C.
%A Fegan, S.
%A Feinstein, F.
%A Fernandes, M. V.
%A Fernandez, D.
%A Fiasson, A.
%A Fontaine, G.
%A Förster, A.
%A Füssling, M.
%A Gajdus, M.
%A Gallant, Y. A.
%A Garrigoux, T.
%A Gast, H.
%A Giebels, B.
%A Glicenstein, J. F.
%A Glück, B.
%A Göring, D.
%A Grondin, M. -H.
%A Häffner, S.
%A Hague, J. D.
%A Hahn, J.
%A Hampf, D.
%A Harris, J.
%A Heinz, S.
%A Heinzelmann, G.
%A Henri, G.
%A Hermann, G.
%A Hillert, A.
%A Hinton, J. A.
%A Hofmann, W.
%A Hofverberg, P.
%A Holler, M.
%A Horns, D.
%A Jacholkowska, A.
%A Jahn, C.
%A Jamrozy, M.
%A Jung, I.
%A Kastendieck, M. A.
%A Katarzyński, K.
%A Katz, U.
%A Kaufmann, S.
%A Khélifi, B.
%A Klepser, S.
%A Klochkov, D.
%A Kluźniak, W.
%A Kneiske, T.
%A Komin, Nu.
%A Kosack, K.
%A Kossakowski, R.
%A Krayzel, F.
%A Krüger, P. P.
%A Laffon, H.
%A Lamanna, G.
%A Lefaucheur, J.
%A Lemoine-Goumard, M.
%A Lenain, J. -P.
%A Lennarz, D.
%A Lohse, T.
%A Lopatin, A.
%A Lu, C. -C.
%A Marandon, V.
%A Marcowith, Alexandre
%A Masbou, Julien
%A Maurin, G.
%A Maxted, N.
%A Mayer, M.
%A Mccomb, T. J. L.
%A Medina, M. C.
%A Méhault, J.
%A Menzler, U.
%A Moderski, R.
%A Mohamed, M.
%A Moulin, Emmanuel
%A Naumann, C. L.
%A Naumann-Godo, M.
%A de Naurois, M.
%A Nedbal, D.
%A Nekrassov, D.
%A Nguyen, N.
%A Niemiec, J.
%A Nolan, S. J.
%A Ohm, S.
%A Wilhelmi, E. de Oña
%A Opitz, B.
%A Ostrowski, M.
%A Oya, I.
%A Panter, M.
%A Parsons, R. D.
%A Arribas, M. Paz
%A Pekeur, N. W.
%A Pelletier, G.
%A Perez, J.
%A Petrucci, P. -O.
%A Peyaud, B.
%A Pita, S.
%A Pühlhofer, G.
%A Punch, M.
%A Quirrenbach, A.
%A Raue, M.
%A Reimer, A.
%A Reimer, O.
%A Renaud, Matthieu
%A Reyes, R. de Los
%A Rieger, F.
%A Ripken, J.
%A Rob, L.
%A Rosier-Lees, S.
%A Rowell, G.
%A Rudak, B.
%A Rulten, C. B.
%A Sahakian, V.
%A Sanchez, D. A.
%A Santangelo, A.
%A Schlickeiser, R.
%A Schulz, A.
%A Schwanke, U.
%A Schwarzburg, S.
%A Schwemmer, S.
%A Sheidaei, F.
%A Skilton, J. L.
%A Sol, H.
%A Spengler, G.
%A Stawarz, Ł.
%A Steenkamp, R.
%A Stegmann, C.
%A Stinzing, F.
%A Stycz, K.
%A Sushch, I.
%A Szostek, A.
%A Tavernet, J. -P.
%A Terrier, R.
%A Tluczykont, M.
%A Trichard, C.
%A Valerius, K.
%A van Eldik, C.
%A Vasileiadis, George
%A Venter, C.
%A Viana, A.
%A Vincent, P.
%A Völk, H. J.
%A Volpe, F.
%A Vorobiov, S.
%A Vorster, M.
%A Wagner, S. J.
%A Ward, M.
%A White, R.
%A Wierzcholska, A.
%A Wouters, D.
%A Zacharias, M.
%A Zajczyk, A.
%A Zdziarski, A. A.
%A Zech, A.
%A Zechlin, H. -S.
%Z 6 pages, 4 figures
%< avec comité de lecture
%@ 0031-9007
%J Physical Review Letters
%I American Physical Society
%V 110
%P 041301
%8 2013-01-22
%D 2013
%Z 1301.1173
%Z 2013PhRvL.110d1301A
%R 10.1103/PhysRevLett.110.041301
%K Gamma-ray
%K Dark matter
%K 95.85.Pw
%K 95.35.+d
%Z Physics [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE]
%Z Sciences of the Universe [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE]Journal articles
%X Gamma-ray line signatures can be expected in the very-high-energy (VHE; E_\gamma > 100 GeV) domain due to self-annihilation or decay of dark matter (DM) particles in space. Such a signal would be readily distinguishable from astrophysical \gamma-ray sources that in most cases produce continuous spectra which span over several orders of magnitude in energy. Using data collected with the H.E.S.S. \gamma-ray instrument, upper limits on line-like emission are obtained in the energy range between ~500 GeV and ~25 TeV for the central part of the Milky Way halo and for extragalactic observations, complementing recent limits obtained with the Fermi-LAT instrument at lower energies. No statistically significant signal could be found. For monochromatic \gamma-ray line emission, flux limits of (2x10^-7 - 2x10^-5) m^-2 s^-1 sr^-1 and (1x10^-8 - 2x10^-6) m^-2 s^-1 sr^-1 are obtained for the central part of the Milky Way halo and extragalactic observations, respectively. For a DM particle mass of 1 TeV, limits on the velocity-averaged DM annihilation cross section < \sigma v >(\chi\chi -> \gamma\gamma) reach ~10^-27 cm^3 s^-1, based on the Einasto parametrization of the Galactic DM halo density profile.
%G English
%Z HESS
%2 https://hal.in2p3.fr/in2p3-00780746/document
%2 https://hal.in2p3.fr/in2p3-00780746/file/1301.1173.pdf
%L in2p3-00780746
%U https://hal.in2p3.fr/in2p3-00780746
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