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Start Over Author "A., Marcowith" Journal physical review letters
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1. Constraints on an Annihilation Signal from a Core of Constant Dark Matter Density around the Milky Way Center with H.E.S.S

Author

HESS Collaboration, Abramowski, A., Aharonian, F., Benkhali, F. Ait, Akhperjanian, A. G., Ang��ner, E. O., Backes, M., Balenderan, S., Balzer, A., Barnacka, A., Becherini, Y., Tjus, J. Becker, Berge, D., Bernhard, S., Bernl��hr, K., Birsin, E., Biteau, J., B��ttcher, 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., Chr��tien, M., Colafrancesco, S., Cologna, G., Conrad, J., Couturier, C., Cui, Y., Davids, I. D., Degrange, B., Deil, C., deWilt, P., Djannati-Ata��, 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., F��rster, A., F����ling, M., Gabici, S., Gajdus, M., Gallant, Y. A., Garrigoux, T., Giavitto, G., Giebels, B., Glicenstein, J. F., Gottschall, D., Grondin, M. -H., Grudzi��ska, M., Hadasch, D., H��ffner, 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., Katarzy��ski, K., Katz, U., Kaufmann, S., Kh��lifi, B., Kieffer, M., Klepser, S., Klochkov, D., Klu��niak, W., Kolitzus, D., Komin, Nu., Kosack, K., Krakau, S., Krayzel, F., Kr��ger, P. P., Laffon, H., Lamanna, G., Lefaucheur, J., Lefranc, V., Lemi��re, 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., M��hault, J., Meintjes, P. J., Menzler, U., Meyer, M., Mitchell, A. M. W., Moderski, R., Mohamed, M., Mor��, 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., P��hlhofer, G., Punch, M., 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., Sch��ssler, F., Schulz, A., Schwanke, U., Schwarzburg, S., Schwemmer, S., Sol, H., Spanier, F., Spengler, G., Spies, F., Stawarz, ��., 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., V��lk, 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., W��rnlein, A., Wouters, D., Yang, R., Zabalza, V., Zaborov, D., Zacharias, M., Zdziarski, A. A., Zech, A., Zechlin, H. -S., Département de Physique des Particules (ex SPP) (DPP), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Département d'Astrophysique (ex SAP) (DAP), HESS, 24420530 - Böttcher, Markus, 13146629 - Davids, Isak Delberth, 24790052 - Ivascenko, Alex, 11749903 - Krüger, Petrus Paulus, 22050574 - Pekeur, Nicolette Whilna, 25161814 - Spanier, Felix Alexander, 24922986 - Sushch, Iurii, 12006653 - Venter, Christo, 12792322 - Vorster, Michael Johannes, Département de Physique des Particules (ex SPP) (DPhP), and High Energy Astrophys. & Astropart. Phys (API, FNWI)

Subjects
Physics, High Energy Astrophysical Phenomena (astro-ph.HE), 010308 nuclear & particles physics, Hot dark matter, Dwarf galaxy problem, Dark matter, Scalar field dark matter, General Physics and Astronomy, Institut für Physik und Astronomie, FOS: Physical sciences, Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, 01 natural sciences, Dark matter halo, Thermodynamics of the universe, DAMA/NaI, 0103 physical sciences, ddc:550, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Astrophysics - High Energy Astrophysical Phenomena, 010303 astronomy & astrophysics, Light dark matter
Abstract

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 $\sim 9$ h of ON/OFF observations. Upper limits on the velocity averaged cross section, $$, for the annihilation of dark matter particles with masses in the range of $\sim 300$ GeV to $\sim 10$ TeV are derived. In contrast to previous constraints derived from observations of the Galactic center region, the constraints that are derived here apply also under the assumption of a central core of constant dark matter density around the center of the Galaxy. Values of $$ that are larger than $3\cdot 10^{-24}\:\mathrm{cm^3/s}$ are excluded for dark matter particles with masses between $\sim 1$ and $\sim 4$ TeV at 95% CL if the radius of the central dark matter density core does not exceed $500$ pc. This is the strongest constraint that is derived on $$ for annihilating TeV mass dark matter without the assumption of a centrally cusped dark matter density distribution in the search region., Comment: Accepted for publication by Physical Review Letters, contact authors: Ullrich Schwanke (schwanke@physik.hu-berlin.de, Humboldt Universitaet zu Berlin, Berlin) and Gerrit Spengler (gerrit.spengler@fysik.su.se, Oscar Klein Centre for Cosmoparticle Physics, Stockholm)

Published
2015
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2. Publisher’s Note: HESS Observations of the Galactic Center Region and Their Possible Dark Matter Interpretation [Phys. Rev. Lett.97, 221102 (2006)]

Author

R. Cornils, Olaf Reimer, M. de Naurois, O. C. de Jager, G. Heinzelmann, B. Khélifi, G. Hermann, Regis Terrier, Jean Michel Martin, O. Bolz, M. Ouchrif, Christian Stegmann, Stefan Wagner, C. Boisson, Anne Lemiere, C. Hadjichristidis, Guillaume Dubus, Y. A. Gallant, Michael Punch, A. Noutsos, A. Fiasson, E. Ferrero, M. Holleran, L. Rob, Pascal Vincent, Christo Venter, P. M. Chadwick, D. Hauser, R. Le Gallou, S. Schlenker, Heinrich J. Völk, G. Vasileiadis, B. C. Raubenheimer, T. J. L. McComb, Thomas Lohse, Felix Spanier, Seb. Funk, M. Panter, Werner Hofmann, C. van Eldik, L. Rolland, Gerard Fontaine, Felix Aharonian, D. Berge, D. Spangler, Ullrich Schwanke, S. M. Rayner, F. Breitling, Wystan Benbow, A. Djannati-Ataï, M. Tluczykont, J.-P. Tavernet, Dieter Horns, Konrad Bernlöhr, G. Pelletier, G. Superina, Martin Raue, Luigi Costamante, D. Nedbal, A. G. Akhperjanian, S. J. Nolan, G. Pühlhofer, Riaan Steenkamp, B. Degrange, C. G. Théoret, A. Reimer, I. Büsching, J. L. Osborne, Joachim Ripken, V. Borrel, V. Sahakian, Helene Sol, Karl Kosack, S. Pita, Martin Ward, Nu. Komin, A. Jacholkowska, P. Goret, Ilana M. Braun, A. M. Brown, Luke O'c. Drury, M. Hauser, Svenja Carrigan, I. J. Latham, L. Saugé, Stefan Funk, M. Lemoine-Goumard, L.-M. Chounet, A. Marcowith, Olivier Martineau-Huynh, K. Egberts, Jim Hinton, K. J. Orford, Dimitrios Emmanoulopoulos, Gilles Henri, A. R. Bazer-Bachi, Conor Masterson, Reinhard Schlickeiser, F. Feinstein, Hugh Dickinson, A. Konopelko, B. Giebels, Rolf Bühler, J. F. Glicenstein, Gavin Rowell, Matthias Beilicke, P. Espigat, Laboratoire d'Astrophysique de Grenoble (LAOG), and Université Joseph Fourier - Grenoble 1 (UJF)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Physics, 010308 nuclear & particles physics, 0103 physical sciences, Galactic Center, Dark matter, Gamma ray, General Physics and Astronomy, Astrophysics, 010306 general physics, Gamma-ray burst, 01 natural sciences, ComputingMilieux_MISCELLANEOUS, Interpretation (model theory)
Abstract

International audience; Not Available

Published
2006
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3. HESS observations of the galactic center region and their possible dark matter interpretation

Author

J.F. Glicenstein, L. Costamante, Nu. Komin, A. Djannati-Ataï, P. M. Chadwick, P. Goret, Luke O'c. Drury, A. Noutsos, M. Hauser, O. Bolz, M. de Naurois, A. Konopelko, Catherine Boisson, Wystan Benbow, Michael Punch, L. Rolland, Konrad Bernlöhr, G. Superina, Y. A. Gallant, C. van Eldik, J. L. Osborne, F. Feinstein, V. Borrel, P. Espigat, D. Hauser, M. Beilicke, Werner Hofmann, G. Pelletier, M. Holleran, A. Reimer, S. Schlenker, M. Ouchrif, L.-M. Chounet, S. J. Nolan, S. Pita, R. Cornils, F. Breitling, Dieter Horns, A. Marcowith, I. Büsching, Christo Venter, G. Heinzelmann, Gilles Henri, M. Tluczykont, D. Spangler, C. Stegmann, J. Ripken, L. Saugé, Olaf Reimer, R. Steenkamp, Stefan Funk, Kathrin Egberts, Svenja Carrigan, M. Raue, B. Degrange, Olivier Martineau-Huynh, E. Ferrero, Jean Michel Martin, Anne Lemiere, S. M. Rayner, M. Lemoine-Goumard, G. Vasileiadis, David Berge, A. Jacholkowska, B. Giebels, I. J. Latham, O. C. de Jager, Reinhard Schlickeiser, Ilana M. Braun, Hugh Dickinson, Gerd Pühlhofer, U. Schwanke, Thomas Lohse, M. Panter, B. Khélifi, Stefan Wagner, Regis Terrier, Felix Spanier, B. C. Raubenheimer, German Hermann, Jim Hinton, L. Rob, J.-P. Tavernet, C. Hadjichristidis, Guillaume Dubus, K. J. Orford, G. Fontaine, V. Sahakian, Rolf Bühler, Heinrich J. Völk, A. Fiasson, Gavin Rowell, R. Le Gallou, C. Masterson, Dimitrios Emmanoulopoulos, A. R. Bazer-Bachi, A. G. Akhperjanian, C. G. Théoret, Seb. Funk, A. M. Brown, Helene Sol, Felix Aharonian, Karl Kosack, T. J. L. McComb, P. Vincent, Martin Ward, D. Nedbal, Centre d'étude spatiale des rayonnements (CESR), Observatoire Midi-Pyrénées (OMP), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées, Laboratoire Univers et Théories (LUTH (UMR_8102)), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7), Laboratoire Leprince-Ringuet (LLR), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), APC - Astrophysique des Hautes Energies (APC - AHE), AstroParticule et Cosmologie (APC (UMR_7164)), Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Dipartimento di Astronomia, Universita degli Studi di Bologna, Alma Mater Studiorum Università di Bologna [Bologna] (UNIBO)-Alma Mater Studiorum Università di Bologna [Bologna] (UNIBO), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Laboratoire de Physique Théorique et Astroparticules (LPTA), Université Montpellier 2 - Sciences et Techniques (UM2)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Département d'Astrophysique, de physique des Particules, de physique Nucléaire et de l'Instrumentation Associée (DAPNIA), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Laboratoire d'Astrophysique de Grenoble (LAOG), Université Joseph Fourier - Grenoble 1 (UJF)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), HESS, Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Alma Mater Studiorum Università di Bologna [Bologna] (UNIBO), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS), PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Dipartimento di Astronomia, Universita degli Studi di Bologna, Università di Bologna [Bologna] (UNIBO)-Università di Bologna [Bologna] (UNIBO), and PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)

Subjects
Photon, Point source, [SDU.ASTR.CO]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO], Astrophysics::High Energy Astrophysical Phenomena, Dark matter, 98.70.Rz, 95.35.+d, 95.85.Pw, 98.35.Jk, FOS: Physical sciences, General Physics and Astronomy, Flux, Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, 01 natural sciences, [PHYS.ASTR.CO]Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO], 0103 physical sciences, 010303 astronomy & astrophysics, Astrophysics::Galaxy Astrophysics, Cherenkov radiation, Physics, [SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph], 010308 nuclear & particles physics, Astrophysics (astro-ph), Galactic Center, Gamma ray, Astronomy, High Energy Physics::Experiment, Gamma-ray burst
Abstract

The detection of gamma-rays from the source HESS J1745-290 in the Galactic Center (GC) region with the H.E.S.S. array of Cherenkov telescopes in 2004 is presented. After subtraction of the diffuse gamma-ray emission from the GC ridge, the source is compatible with a point-source with spatial extent less than 1.2'(stat.) (95% CL). The measured energy spectrum above 160 GeV is compatible with a power-law with photon index of 2.25 +/- 0.04(stat.) +/- 0.10 (syst.) and no significant flux variation is detected. These measurements are discussed in the framework of dark matter annihilation. It is found that the bulk of the VHE emission must have non-dark-matter origin. Loose constraints on the velocity-weighted annihilation cross section are derived assuming the presence of an astrophysical non-dark-matter gamma-ray contribution., Comment: 5 pages, 2 figures, published in Physical Review Letters Correct some references The accepted version set on astro-ph was slightly too long for publication. This is a slightly shorter version

Published
2005
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4. Search for Photon-Linelike Signatures from Dark Matter Annihilations with H.E.S.S.

Author

Abramowski, A., primary, Acero, F., additional, Aharonian, F., additional, Akhperjanian, A. G., additional, Anton, G., additional, Balenderan, S., additional, Balzer, A., additional, Barnacka, A., additional, Becherini, Y., additional, Becker Tjus, J., additional, Bernlöhr, K., additional, Birsin, E., additional, Biteau, J., additional, Bochow, A., additional, Boisson, C., additional, Bolmont, J., additional, Bordas, P., additional, Brucker, J., additional, Brun, F., additional, Brun, P., additional, Bulik, T., additional, Carrigan, S., additional, Casanova, S., additional, Cerruti, M., additional, Chadwick, P. M., additional, Chaves, R. C. G., additional, Cheesebrough, A., additional, Colafrancesco, S., additional, Cologna, G., additional, Conrad, J., additional, Couturier, C., additional, Dalton, M., additional, Daniel, M. K., additional, Davids, I. D., additional, Degrange, B., additional, Deil, C., additional, deWilt, P., additional, Dickinson, H. J., additional, Djannati-Ataï, A., additional, Domainko, W., additional, Drury, L. O’C., additional, Dubus, G., additional, Dutson, K., additional, Dyks, J., additional, Dyrda, M., additional, Egberts, K., additional, Eger, P., additional, Espigat, P., additional, Fallon, L., additional, Farnier, C., additional, Fegan, S., additional, Feinstein, F., additional, Fernandes, M. V., additional, Fernandez, D., additional, Fiasson, A., additional, Fontaine, G., additional, Förster, A., additional, Füßling, M., additional, Gajdus, M., additional, Gallant, Y. A., additional, Garrigoux, T., additional, Gast, H., additional, Giebels, B., additional, Glicenstein, J. F., additional, Glück, B., additional, Göring, D., additional, Grondin, M.-H., additional, Häffner, S., additional, Hague, J. D., additional, Hahn, J., additional, Hampf, D., additional, Harris, J., additional, Heinz, S., additional, Heinzelmann, G., additional, Henri, G., additional, Hermann, G., additional, Hillert, A., additional, Hinton, J. A., additional, Hofmann, W., additional, Hofverberg, P., additional, Holler, M., additional, Horns, D., additional, Jacholkowska, A., additional, Jahn, C., additional, Jamrozy, M., additional, Jung, I., additional, Kastendieck, M. A., additional, Katarzyński, K., additional, Katz, U., additional, Kaufmann, S., additional, Khélifi, B., additional, Klepser, S., additional, Klochkov, D., additional, Kluźniak, W., additional, Kneiske, T., additional, Komin, Nu., additional, Kosack, K., additional, Kossakowski, R., additional, Krayzel, F., additional, Krüger, P. P., additional, Laffon, H., additional, Lamanna, G., additional, Lefaucheur, J., additional, Lemoine-Goumard, M., additional, Lenain, J.-P., additional, Lennarz, D., additional, Lohse, T., additional, Lopatin, A., additional, Lu, C.-C., additional, Marandon, V., additional, Marcowith, A., additional, Masbou, J., additional, Maurin, G., additional, Maxted, N., additional, Mayer, M., additional, McComb, T. J. L., additional, Medina, M. C., additional, Méhault, J., additional, Menzler, U., additional, Moderski, R., additional, Mohamed, M., additional, Moulin, E., additional, Naumann, C. L., additional, Naumann-Godo, M., additional, de Naurois, M., additional, Nedbal, D., additional, Nekrassov, D., additional, Nguyen, N., additional, Niemiec, J., additional, Nolan, S. J., additional, Ohm, S., additional, de Oña Wilhelmi, E., additional, Opitz, B., additional, Ostrowski, M., additional, Oya, I., additional, Panter, M., additional, Parsons, R. D., additional, Paz Arribas, M., additional, Pekeur, N. W., additional, Pelletier, G., additional, Perez, J., additional, Petrucci, P.-O., additional, Peyaud, B., additional, Pita, S., additional, Pühlhofer, G., additional, Punch, M., additional, Quirrenbach, A., additional, Raue, M., additional, Reimer, A., additional, Reimer, O., additional, Renaud, M., additional, de los Reyes, R., additional, Rieger, F., additional, Ripken, J., additional, Rob, L., additional, Rosier-Lees, S., additional, Rowell, G., additional, Rudak, B., additional, Rulten, C. B., additional, Sahakian, V., additional, Sanchez, D. A., additional, Santangelo, A., additional, Schlickeiser, R., additional, Schulz, A., additional, Schwanke, U., additional, Schwarzburg, S., additional, Schwemmer, S., additional, Sheidaei, F., additional, Skilton, J. L., additional, Sol, H., additional, Spengler, G., additional, Stawarz, Ł., additional, Steenkamp, R., additional, Stegmann, C., additional, Stinzing, F., additional, Stycz, K., additional, Sushch, I., additional, Szostek, A., additional, Tavernet, J.-P., additional, Terrier, R., additional, Tluczykont, M., additional, Trichard, C., additional, Valerius, K., additional, van Eldik, C., additional, Vasileiadis, G., additional, Venter, C., additional, Viana, A., additional, Vincent, P., additional, Völk, H. J., additional, Volpe, F., additional, Vorobiov, S., additional, Vorster, M., additional, Wagner, S. J., additional, Ward, M., additional, White, R., additional, Wierzcholska, A., additional, Wouters, D., additional, Zacharias, M., additional, Zajczyk, A., additional, Zdziarski, A. A., additional, Zech, A., additional, and Zechlin, H.-S., additional

Published
2013
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5. Search for a Dark Matter Annihilation Signal from the Galactic Center Halo with H.E.S.S.

Author

Abramowski, A., primary, Acero, F., additional, Aharonian, F., additional, Akhperjanian, A. G., additional, Anton, G., additional, Barnacka, A., additional, Barres de Almeida, U., additional, Bazer-Bachi, A. R., additional, Becherini, Y., additional, Becker, J., additional, Behera, B., additional, Bernlöhr, K., additional, Bochow, A., additional, Boisson, C., additional, Bolmont, J., additional, Bordas, P., additional, Borrel, V., additional, Brucker, J., additional, Brun, F., additional, Brun, P., additional, Bulik, T., additional, Büsching, I., additional, Carrigan, S., additional, Casanova, S., additional, Cerruti, M., additional, Chadwick, P. M., additional, Charbonnier, A., additional, Chaves, R. C. G., additional, Cheesebrough, A., additional, Chounet, L.-M., additional, Clapson, A. C., additional, Coignet, G., additional, Conrad, J., additional, Dalton, M., additional, Daniel, M. K., additional, Davids, I. D., additional, Degrange, B., additional, Deil, C., additional, Dickinson, H. J., additional, Djannati-Ataï, A., additional, Domainko, W., additional, Drury, L. O’C., additional, Dubois, F., additional, Dubus, G., additional, Dyks, J., additional, Dyrda, M., additional, Egberts, K., additional, Eger, P., additional, Espigat, P., additional, Fallon, L., additional, Farnier, C., additional, Fegan, S., additional, Feinstein, F., additional, Fernandes, M. V., additional, Fiasson, A., additional, Fontaine, G., additional, Förster, A., additional, Füßling, M., additional, Gallant, Y. A., additional, Gast, H., additional, Gérard, L., additional, Gerbig, D., additional, Giebels, B., additional, Glicenstein, J. F., additional, Glück, B., additional, Goret, P., additional, Göring, D., additional, Hague, J. D., additional, Hampf, D., additional, Hauser, M., additional, Heinz, S., additional, Heinzelmann, G., additional, Henri, G., additional, Hermann, G., additional, Hinton, J. A., additional, Hoffmann, A., additional, Hofmann, W., additional, Hofverberg, P., additional, Horns, D., additional, Jacholkowska, A., additional, de Jager, O. C., additional, Jahn, C., additional, Jamrozy, M., additional, Jung, I., additional, Kastendieck, M. A., additional, Katarzyński, K., additional, Katz, U., additional, Kaufmann, S., additional, Keogh, D., additional, Kerschhaggl, M., additional, Khangulyan, D., additional, Khélifi, B., additional, Klochkov, D., additional, Kluźniak, W., additional, Kneiske, T., additional, Komin, Nu., additional, Kosack, K., additional, Kossakowski, R., additional, Laffon, H., additional, Lamanna, G., additional, Lennarz, D., additional, Lohse, T., additional, Lopatin, A., additional, Lu, C.-C., additional, Marandon, V., additional, Marcowith, A., additional, Masbou, J., additional, Maurin, D., additional, Maxted, N., additional, McComb, T. J. L., additional, Medina, M. C., additional, Méhault, J., additional, Moderski, R., additional, Moulin, E., additional, Naumann, C. L., additional, Naumann-Godo, M., additional, de Naurois, M., additional, Nedbal, D., additional, Nekrassov, D., additional, Nguyen, N., additional, Nicholas, B., additional, Niemiec, J., additional, Nolan, S. J., additional, Ohm, S., additional, Olive, J-F., additional, de Oña Wilhelmi, E., additional, Opitz, B., additional, Ostrowski, M., additional, Panter, M., additional, Paz Arribas, M., additional, Pedaletti, G., additional, Pelletier, G., additional, Petrucci, P.-O., additional, Pita, S., additional, Pühlhofer, G., additional, Punch, M., additional, Quirrenbach, A., additional, Raue, M., additional, Rayner, S. M., additional, Reimer, A., additional, Reimer, O., additional, Renaud, M., additional, de los Reyes, R., additional, Rieger, F., additional, Ripken, J., additional, Rob, L., additional, Rosier-Lees, S., additional, Rowell, G., additional, Rudak, B., additional, Rulten, C. B., additional, Ruppel, J., additional, Ryde, F., additional, Sahakian, V., additional, Santangelo, A., additional, Schlickeiser, R., additional, Schöck, F. M., additional, Schönwald, A., additional, Schwanke, U., additional, Schwarzburg, S., additional, Schwemmer, S., additional, Shalchi, A., additional, Sikora, M., additional, Skilton, J. L., additional, Sol, H., additional, Spengler, G., additional, Stawarz, Ł., additional, Steenkamp, R., additional, Stegmann, C., additional, Stinzing, F., additional, Sushch, I., additional, Szostek, A., additional, Tavernet, J.-P., additional, Terrier, R., additional, Tibolla, O., additional, Tluczykont, M., additional, Valerius, K., additional, van Eldik, C., additional, Vasileiadis, G., additional, Venter, C., additional, Vialle, J. P., additional, Viana, A., additional, Vincent, P., additional, Vivier, M., additional, Völk, H. J., additional, Volpe, F., additional, Vorobiov, S., additional, Vorster, M., additional, Wagner, S. J., additional, Ward, M., additional, Wierzcholska, A., additional, Zajczyk, A., additional, Zdziarski, A. A., additional, Zech, A., additional, and Zechlin, H.-S., additional

Published
2011
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6. Energy Spectrum of Cosmic-Ray Electrons at TeV Energies

Author

Aharonian, F., primary, Akhperjanian, A. G., additional, Barres de Almeida, U., additional, Bazer-Bachi, A. R., additional, Becherini, Y., additional, Behera, B., additional, Benbow, W., additional, Bernlöhr, K., additional, Boisson, C., additional, Bochow, A., additional, Borrel, V., additional, Braun, I., additional, Brion, E., additional, Brucker, J., additional, Brun, P., additional, Bühler, R., additional, Bulik, T., additional, Büsching, I., additional, Boutelier, T., additional, Carrigan, S., additional, Chadwick, P. M., additional, Charbonnier, A., additional, Chaves, R. C. G., additional, Cheesebrough, A., additional, Chounet, L.-M., additional, Clapson, A. C., additional, Coignet, G., additional, Costamante, L., additional, Dalton, M., additional, Degrange, B., additional, Deil, C., additional, Dickinson, H. J., additional, Djannati-Ataï, A., additional, Domainko, W., additional, Drury, L. O’C., additional, Dubois, F., additional, Dubus, G., additional, Dyks, J., additional, Dyrda, M., additional, Egberts, K., additional, Emmanoulopoulos, D., additional, Espigat, P., additional, Farnier, C., additional, Feinstein, F., additional, Fiasson, A., additional, Förster, A., additional, Fontaine, G., additional, Füßling, M., additional, Gabici, S., additional, Gallant, Y. A., additional, Gérard, L., additional, Giebels, B., additional, Glicenstein, J. F., additional, Glück, B., additional, Goret, P., additional, Hadjichristidis, C., additional, Hauser, D., additional, Hauser, M., additional, Heinz, S., additional, Heinzelmann, G., additional, Henri, G., additional, Hermann, G., additional, Hinton, J. A., additional, Hoffmann, A., additional, Hofmann, W., additional, Holleran, M., additional, Hoppe, S., additional, Horns, D., additional, Jacholkowska, A., additional, de Jager, O. C., additional, Jung, I., additional, Katarzyński, K., additional, Kaufmann, S., additional, Kendziorra, E., additional, Kerschhaggl, M., additional, Khangulyan, D., additional, Khélifi, B., additional, Keogh, D., additional, Komin, Nu., additional, Kosack, K., additional, Lamanna, G., additional, Lenain, J.-P., additional, Lohse, T., additional, Marandon, V., additional, Martin, J. M., additional, Martineau-Huynh, O., additional, Marcowith, A., additional, Maurin, D., additional, McComb, T. J. L., additional, Medina, C., additional, Moderski, R., additional, Moulin, E., additional, Naumann-Godo, M., additional, de Naurois, M., additional, Nedbal, D., additional, Nekrassov, D., additional, Niemiec, J., additional, Nolan, S. J., additional, Ohm, S., additional, Olive, J-F., additional, de Oña Wilhelmi, E., additional, Orford, K. J., additional, Osborne, J. L., additional, Ostrowski, M., additional, Panter, M., additional, Pedaletti, G., additional, Pelletier, G., additional, Petrucci, P.-O., additional, Pita, S., additional, Pühlhofer, G., additional, Punch, M., additional, Quirrenbach, A., additional, Raubenheimer, B. C., additional, Raue, M., additional, Rayner, S. M., additional, Renaud, M., additional, Rieger, F., additional, Ripken, J., additional, Rob, L., additional, Rosier-Lees, S., additional, Rowell, G., additional, Rudak, B., additional, Rulten, C. B., additional, Ruppel, J., additional, Sahakian, V., additional, Santangelo, A., additional, Schlickeiser, R., additional, Schöck, F. M., additional, Schröder, R., additional, Schwanke, U., additional, Schwarzburg, S., additional, Schwemmer, S., additional, Shalchi, A., additional, Skilton, J. L., additional, Sol, H., additional, Spangler, D., additional, Stawarz, Ł., additional, Steenkamp, R., additional, Stegmann, C., additional, Superina, G., additional, Tam, P. H., additional, Tavernet, J.-P., additional, Terrier, R., additional, Tibolla, O., additional, van Eldik, C., additional, Vasileiadis, G., additional, Venter, C., additional, Vialle, J. P., additional, Vincent, P., additional, Vivier, M., additional, Völk, H. J., additional, Volpe, F., additional, Wagner, S. J., additional, Ward, M., additional, Zdziarski, A. A., additional, and Zech, A., additional

Published
2008
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7. Limits on an Energy Dependence of the Speed of Light from a Flare of the Active Galaxy PKS 2155-304

Author

Aharonian, F., primary, Akhperjanian, A. G., additional, Barres de Almeida, U., additional, Bazer-Bachi, A. R., additional, Becherini, Y., additional, Behera, B., additional, Beilicke, M., additional, Benbow, W., additional, Bernlöhr, K., additional, Boisson, C., additional, Bochow, A., additional, Borrel, V., additional, Braun, I., additional, Brion, E., additional, Brucker, J., additional, Brun, P., additional, Bühler, R., additional, Bulik, T., additional, Büsching, I., additional, Boutelier, T., additional, Carrigan, S., additional, Chadwick, P. M., additional, Charbonnier, A., additional, Chaves, R. C. G., additional, Chounet, L.-M., additional, Clapson, A. C., additional, Coignet, G., additional, Costamante, L., additional, Dalton, M., additional, Degrange, B., additional, Deil, C., additional, Dickinson, H. J., additional, Djannati-Ataï, A., additional, Domainko, W., additional, Drury, L. O’C., additional, Dubois, F., additional, Dubus, G., additional, Dyks, J., additional, Egberts, K., additional, Emmanoulopoulos, D., additional, Espigat, P., additional, Farnier, C., additional, Feinstein, F., additional, Fiasson, A., additional, Förster, A., additional, Fontaine, G., additional, Füßling, M., additional, Gabici, S., additional, Gallant, Y. A., additional, Gérard, L., additional, Giebels, B., additional, Glicenstein, J. F., additional, Glück, B., additional, Goret, P., additional, Hadjichristidis, C., additional, Hauser, D., additional, Hauser, M., additional, Heinz, S., additional, Heinzelmann, G., additional, Henri, G., additional, Hermann, G., additional, Hinton, J. A., additional, Hoffmann, A., additional, Hofmann, W., additional, Holleran, M., additional, Hoppe, S., additional, Horns, D., additional, Jacholkowska, A., additional, de Jager, O. C., additional, Jung, I., additional, Katarzyński, K., additional, Kaufmann, S., additional, Kendziorra, E., additional, Kerschhaggl, M., additional, Khangulyan, D., additional, Khélifi, B., additional, Keogh, D., additional, Komin, Nu., additional, Kosack, K., additional, Lamanna, G., additional, Lenain, J.-P., additional, Lohse, T., additional, Marandon, V., additional, Martin, J. M., additional, Martineau-Huynh, O., additional, Marcowith, A., additional, Maurin, D., additional, McComb, T. J. L., additional, Medina, C., additional, Moderski, R., additional, Moulin, E., additional, Naumann-Godo, M., additional, de Naurois, M., additional, Nedbal, D., additional, Nekrassov, D., additional, Niemiec, J., additional, Nolan, S. J., additional, Ohm, S., additional, Olive, J.-F., additional, de Oña Wilhelmi, E., additional, Orford, K. J., additional, Osborne, J. L., additional, Ostrowski, M., additional, Panter, M., additional, Pedaletti, G., additional, Pelletier, G., additional, Petrucci, P.-O., additional, Pita, S., additional, Pühlhofer, G., additional, Punch, M., additional, Quirrenbach, A., additional, Raubenheimer, B. C., additional, Raue, M., additional, Rayner, S. M., additional, Renaud, M., additional, Rieger, F., additional, Ripken, J., additional, Rob, L., additional, Rosier-Lees, S., additional, Rowell, G., additional, Rudak, B., additional, Ruppel, J., additional, Sahakian, V., additional, Santangelo, A., additional, Schlickeiser, R., additional, Schöck, F. M., additional, Schröder, R., additional, Schwanke, U., additional, Schwarzburg, S., additional, Schwemmer, S., additional, Shalchi, A., additional, Skilton, J. L., additional, Sol, H., additional, Spangler, D., additional, Stawarz, Ł., additional, Steenkamp, R., additional, Stegmann, C., additional, Superina, G., additional, Tam, P. H., additional, Tavernet, J.-P., additional, Terrier, R., additional, Tibolla, O., additional, van Eldik, C., additional, Vasileiadis, G., additional, Venter, C., additional, Vialle, J. P., additional, Vincent, P., additional, Vivier, M., additional, Völk, H. J., additional, Volpe, F., additional, Wagner, S. J., additional, Ward, M., additional, Zdziarski, A. A., additional, and Zech, A., additional

Published
2008
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8. Publisher’s Note: HESS Observations of the Galactic Center Region and Their Possible Dark Matter Interpretation [Phys. Rev. Lett.97, 221102 (2006)]

Author

Aharonian, F., primary, Akhperjanian, A. G., additional, Bazer-Bachi, A. R., additional, Beilicke, M., additional, Benbow, W., additional, Berge, D., additional, Bernlöhr, K., additional, Boisson, C., additional, Bolz, O., additional, Borrel, V., additional, Braun, I., additional, Breitling, F., additional, Brown, A. M., additional, Bühler, R., additional, Büsching, I., additional, Carrigan, S., additional, Chadwick, P. M., additional, Chounet, L. M., additional, Cornils, R., additional, Costamante, L., additional, Degrange, B., additional, Dickinson, H. J., additional, Djannati-Ataï, A., additional, Drury, L. O’C., additional, Dubus, G., additional, Egberts, K., additional, Emmanoulopoulos, D., additional, Espigat, P., additional, Feinstein, F., additional, Ferrero, E., additional, Fiasson, A., additional, Fontaine, G., additional, Funk, Seb., additional, Funk, S., additional, Gallant, Y. A., additional, Giebels, B., additional, Glicenstein, J. F., additional, Goret, P., additional, Hadjichristidis, C., additional, Hauser, D., additional, Hauser, M., additional, Heinzelmann, G., additional, Henri, G., additional, Hermann, G., additional, Hinton, J. A., additional, Hofmann, W., additional, Holleran, M., additional, Horns, D., additional, Jacholkowska, A., additional, de Jager, O. C., additional, Khélifi, B., additional, Komin, Nu., additional, Konopelko, A., additional, Kosack, K., additional, Latham, I. J., additional, Gallou, R. Le, additional, Lemière, A., additional, Lemoine-Goumard, M., additional, Lohse, T., additional, Martin, J. M., additional, Martineau-Huynh, O., additional, Marcowith, A., additional, Masterson, C., additional, McComb, T. J. L., additional, de Naurois, M., additional, Nedbal, D., additional, Nolan, S. J., additional, Noutsos, A., additional, Orford, K. J., additional, Osborne, J. L., additional, Ouchrif, M., additional, Panter, M., additional, Pelletier, G., additional, Pita, S., additional, Pühlhofer, G., additional, Punch, M., additional, Raubenheimer, B. C., additional, Raue, M., additional, Rayner, S. M., additional, Reimer, A., additional, Reimer, O., additional, Ripken, J., additional, Rob, L., additional, Rolland, L., additional, Rowell, G., additional, Sahakian, V., additional, Saugé, L., additional, Schlenker, S., additional, Schlickeiser, R., additional, Schwanke, U., additional, Sol, H., additional, Spangler, D., additional, Spanier, F., additional, Steenkamp, R., additional, Stegmann, C., additional, Superina, G., additional, Tavernet, J.-P., additional, Terrier, R., additional, Théoret, C. G., additional, Tluczykont, M., additional, van Eldik, C., additional, Vasileiadis, G., additional, Venter, C., additional, Vincent, P., additional, Völk, H. J., additional, Wagner, S. J., additional, and Ward, and M., additional

Published
2006
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9. HESS Observations of the Galactic Center Region and Their Possible Dark Matter Interpretation

Author

Aharonian, F., primary, Akhperjanian, A. G., additional, Bazer-Bachi, A. R., additional, Beilicke, M., additional, Benbow, W., additional, Berge, D., additional, Bernlöhr, K., additional, Boisson, C., additional, Bolz, O., additional, Borrel, V., additional, Braun, I., additional, Breitling, F., additional, Brown, A. M., additional, Bühler, R., additional, Büsching, I., additional, Carrigan, S., additional, Chadwick, P. M., additional, Chounet, L.-M., additional, Cornils, R., additional, Costamante, L., additional, Degrange, B., additional, Dickinson, H. J., additional, Djannati-Ataï, A., additional, Drury, L. O’C., additional, Dubus, G., additional, Egberts, K., additional, Emmanoulopoulos, D., additional, Espigat, P., additional, Feinstein, F., additional, Ferrero, E., additional, Fiasson, A., additional, Fontaine, G., additional, Funk, Seb., additional, Funk, S., additional, Gallant, Y. A., additional, Giebels, B., additional, Glicenstein, J. F., additional, Goret, P., additional, Hadjichristidis, C., additional, Hauser, D., additional, Hauser, M., additional, Heinzelmann, G., additional, Henri, G., additional, Hermann, G., additional, Hinton, J. A., additional, Hofmann, W., additional, Holleran, M., additional, Horns, D., additional, Jacholkowska, A., additional, de Jager, O. C., additional, Khélifi, B., additional, Komin, Nu., additional, Konopelko, A., additional, Kosack, K., additional, Latham, I. J., additional, Le Gallou, R., additional, Lemière, A., additional, Lemoine-Goumard, M., additional, Lohse, T., additional, Martin, J. M., additional, Martineau-Huynh, O., additional, Marcowith, A., additional, Masterson, C., additional, McComb, T. J. L., additional, de Naurois, M., additional, Nedbal, D., additional, Nolan, S. J., additional, Noutsos, A., additional, Orford, K. J., additional, Osborne, J. L., additional, Ouchrif, M., additional, Panter, M., additional, Pelletier, G., additional, Pita, S., additional, Pühlhofer, G., additional, Punch, M., additional, Raubenheimer, B. C., additional, Raue, M., additional, Rayner, S. M., additional, Reimer, A., additional, Reimer, O., additional, Ripken, J., additional, Rob, L., additional, Rolland, L., additional, Rowell, G., additional, Sahakian, V., additional, Saugé, L., additional, Schlenker, S., additional, Schlickeiser, R., additional, Schwanke, U., additional, Sol, H., additional, Spangler, D., additional, Spanier, F., additional, Steenkamp, R., additional, Stegmann, C., additional, Superina, G., additional, Tavernet, J.-P., additional, Terrier, R., additional, Théoret, C. G., additional, Tluczykont, M., additional, van Eldik, C., additional, Vasileiadis, G., additional, Venter, C., additional, Vincent, P., additional, Völk, H. J., additional, Wagner, S. J., additional, and Ward, M., additional

Published
2006
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10. Search for γ-Ray Line Signals from Dark Matter Annihilations in the Inner Galactic Halo from 10 Years of Observations with H.E.S.S.

Author

Abdallah H, Abramowski A, Aharonian F, Ait Benkhali F, Angüner EO, Arakawa M, Arrieta M, Aubert P, Backes M, Balzer A, Barnard M, Becherini Y, Becker Tjus J, Berge D, Bernhard S, Bernlöhr K, Blackwell R, Böttcher M, Boisson C, Bolmont J, Bonnefoy S, Bordas P, Bregeon J, Brun F, Brun P, Bryan M, Büchele M, Bulik T, Capasso M, Caroff S, Carosi A, Carr J, Casanova S, Cerruti M, Chakraborty N, Chaves RCG, Chen A, Chevalier J, Colafrancesco S, Condon B, Conrad J, Davids ID, Decock J, Deil C, Devin J, deWilt P, Dirson L, Djannati-Ataï A, Domainko W, Donath A, Drury LO, Dutson K, Dyks J, Edwards T, Egberts K, Eger P, Emery G, Ernenwein JP, Eschbach S, Farnier C, Fegan S, Fernandes MV, Fiasson A, Fontaine G, Förster A, Funk S, Füßling M, Gabici S, Gallant YA, Garrigoux T, Gaté F, Giavitto G, Giebels B, Glawion D, Glicenstein JF, Gottschall D, Grondin MH, Hahn J, Haupt M, Hawkes J, Heinzelmann G, Henri G, Hermann G, Hinton JA, Hofmann W, Hoischen C, Holch TL, Holler M, Horns D, Ivascenko A, Iwasaki H, Jacholkowska A, Jamrozy M, Janiak M, Jankowsky D, Jankowsky F, Jingo M, Jouvin L, Jung-Richardt I, Kastendieck MA, Katarzyński K, Katsuragawa M, Katz U, Kerszberg D, Khangulyan D, Khélifi B, King J, Klepser S, Klochkov D, Kluźniak W, Komin N, Kosack K, Krakau S, Kraus M, Krüger PP, Laffon H, Lamanna G, Lau J, Lees JP, Lefaucheur J, Lemière A, Lemoine-Goumard M, Lenain JP, Leser E, Liu R, Lohse T, Lorentz M, López-Coto R, Lypova I, Malyshev D, Marandon V, Marcowith A, Mariaud C, Marx R, Maurin G, Maxted N, Mayer M, Meintjes PJ, Meyer M, Mitchell AMW, Moderski R, Mohamed M, Mohrmann L, Morå K, Moulin E, Murach T, Nakashima S, de Naurois M, Ndiyavala H, Niederwanger F, Niemiec J, Oakes L, O'Brien P, Odaka H, Ohm S, Ostrowski M, Oya I, Padovani M, Panter M, Parsons RD, Pekeur NW, Pelletier G, Perennes C, Petrucci PO, Peyaud B, Piel Q, Pita S, Poireau V, Poon H, Prokhorov D, Prokoph H, Pühlhofer G, Punch M, Quirrenbach A, Raab S, Rauth R, Reimer A, Reimer O, Renaud M, de Los Reyes R, Rieger F, Rinchiuso L, Romoli C, Rowell G, Rudak B, Rulten CB, Sahakian V, Saito S, Sanchez DA, Santangelo A, Sasaki M, Schandri M, Schlickeiser R, Schüssler F, Schulz A, Schwanke U, Schwemmer S, Seglar-Arroyo M, Settimo M, Seyffert AS, Shafi N, Shilon I, Shiningayamwe K, Simoni R, Sol H, Spanier F, Spir-Jacob M, Stawarz Ł, Steenkamp R, Stegmann C, Steppa C, Sushch I, Takahashi T, Tavernet JP, Tavernier T, Taylor AM, Terrier R, Tibaldo L, Tiziani D, Tluczykont M, Trichard C, Tsirou M, Tsuji N, Tuffs R, Uchiyama Y, van der Walt J, van Eldik C, van Rensburg C, van Soelen B, Vasileiadis G, Veh J, Venter C, Viana A, Vincent P, Vink J, Voisin F, Völk HJ, Vuillaume T, Wadiasingh Z, Wagner SJ, Wagner P, Wagner RM, White R, Wierzcholska A, Willmann P, Wörnlein A, Wouters D, Yang R, Zaborov D, Zacharias M, Zanin R, Zdziarski AA, Zech A, Zefi F, Ziegler A, Zorn J, and Żywucka N

Abstract

Spectral lines are among the most powerful signatures for dark matter (DM) annihilation searches in very-high-energy γ rays. The central region of the Milky Way halo is one of the most promising targets given its large amount of DM and proximity to Earth. We report on a search for a monoenergetic spectral line from self-annihilations of DM particles in the energy range from 300 GeV to 70 TeV using a two-dimensional maximum likelihood method taking advantage of both the spectral and spatial features of the signal versus background. The analysis makes use of Galactic center observations accumulated over ten years (2004-2014) with the H.E.S.S. array of ground-based Cherenkov telescopes. No significant γ-ray excess above the background is found. We derive upper limits on the annihilation cross section ⟨σv⟩ for monoenergetic DM lines at the level of 4×10^{-28}  cm^{3} s^{-1} at 1 TeV, assuming an Einasto DM profile for the Milky Way halo. For a DM mass of 1 TeV, they improve over the previous ones by a factor of 6. The present constraints are the strongest obtained so far for DM particles in the mass range 300 GeV-70 TeV. Ground-based γ-ray observations have reached sufficient sensitivity to explore relevant velocity-averaged cross sections for DM annihilation into two γ-ray photons at the level expected from the thermal relic density for TeV DM particles.

Published
2018
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11. H.E.S.S. Limits on Linelike Dark Matter Signatures in the 100 GeV to 2 TeV Energy Range Close to the Galactic Center.

Author

Abdalla H, Abramowski A, Aharonian F, Ait Benkhali F, Akhperjanian AG, Andersson T, Angüner EO, Arrieta M, Aubert P, Backes M, Balzer A, Barnard M, Becherini Y, Becker Tjus J, Berge D, Bernhard S, Bernlöhr K, Birsin E, Blackwell R, Böttcher 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 RC, Chen A, Chevalier J, Chrétien M, Colafrancesco S, Cologna G, Condon B, Conrad J, Couturier C, Cui Y, Davids ID, Degrange B, Deil C, Devin J, deWilt P, Djannati-Ataï A, Domainko W, Donath A, Drury LO, Dubus G, Dutson K, Dyks J, Dyrda M, Edwards T, Egberts K, Eger P, Ernenwein JP, Eschbach S, Farnier C, Fegan S, Fernandes MV, Fiasson A, Fontaine G, Förster A, Funk S, Füßling M, Gabici S, Gajdus M, Gallant YA, Garrigoux T, Giavitto G, Giebels B, Glicenstein JF, Gottschall D, Goyal A, Grondin MH, Grudzińska M, Hadasch D, Hahn J, Hawkes J, Heinzelmann G, Henri G, Hermann G, Hervet O, Hillert A, Hinton JA, 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 MA, Katarzyński K, Katz U, Kerszberg D, Khélifi B, Kieffer M, King J, Klepser S, Klochkov D, Kluźniak W, Kolitzus D, Komin N, Kosack K, Krakau S, Kraus M, Krayzel F, Krüger PP, Laffon H, Lamanna G, Lau J, Lees JP, Lefaucheur J, Lefranc V, Lemière A, Lemoine-Goumard M, Lenain JP, Leser E, Liu R, Lohse T, Lorentz M, Lypova I, Marandon V, Marcowith A, Mariaud C, Marx R, Maurin G, Maxted N, Mayer M, Meintjes PJ, Meyer M, Mitchell AM, Moderski R, Mohamed M, Morå K, Moulin E, Murach T, de Naurois M, Niederwanger F, Niemiec J, Oakes L, O'Brien P, Odaka H, Ohm S, Ostrowski M, Öttl S, Oya I, Padovani M, Panter M, Parsons RD, Paz Arribas M, Pekeur NW, Pelletier G, Perennes C, Petrucci PO, Peyaud B, Pita S, Poon H, Prokhorov D, Prokoph H, Pühlhofer G, Punch M, 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 CB, Sahakian V, Salek D, Sanchez DA, Santangelo A, Sasaki M, Schlickeiser R, Schüssler F, Schulz A, Schwanke U, Schwemmer S, Settimo M, Seyffert AS, Shafi N, Shilon I, Simoni R, Sol H, Spanier F, Spengler G, Spies F, Stawarz Ł, Steenkamp R, Stegmann C, Stinzing F, Stycz K, Sushch I, Tavernet JP, Tavernier T, Taylor AM, Terrier R, Tibaldo L, 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, Völk HJ, Vuillaume T, Wadiasingh Z, Wagner SJ, Wagner P, Wagner RM, White R, Wierzcholska A, Willmann P, Wörnlein A, Wouters D, Yang R, Zabalza V, Zaborov D, Zacharias M, Zdziarski AA, Zech A, Zefi F, Ziegler A, and Żywucka N

Abstract

A search for dark matter linelike signals iss performed in the vicinity of the Galactic Center by the H.E.S.S. experiment on observational data taken in 2014. An unbinned likelihood analysis iss developed to improve the sensitivity to linelike signals. The upgraded analysis along with newer data extend the energy coverage of the previous measurement down to 100 GeV. The 18 h of data collected with the H.E.S.S. array allow one to rule out at 95% C.L. the presence of a 130 GeV line (at l=-1.5°, b=0° and for a dark matter profile centered at this location) previously reported in Fermi-LAT data. This new analysis overlaps significantly in energy with previous Fermi-LAT and H.E.S.S., Results: No significant excess associated with dark matter annihilations was found in the energy range of 100 GeV to 2 TeV and upper limits on the gamma-ray flux and the velocity weighted annihilation cross section are derived adopting an Einasto dark matter halo profile. Expected limits for present and future large statistics H.E.S.S. observations are also given.

Published
2016
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12. Search for Dark Matter Annihilations towards the Inner Galactic Halo from 10 Years of Observations with H.E.S.S.

Author

Abdallah H, Abramowski A, Aharonian F, Ait Benkhali F, Akhperjanian AG, Angüner E, Arrieta M, Aubert P, Backes M, Balzer A, Barnard M, Becherini Y, Becker Tjus J, Berge D, Bernhard S, Bernlöhr K, Birsin E, Blackwell R, Böttcher 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 RC, Chen A, Chevalier J, Chrétien M, Colafrancesco S, Cologna G, Condon B, Conrad J, Couturier C, Cui Y, Davids ID, Degrange B, Deil C, deWilt P, Djannati-Ataï A, Domainko W, Donath A, Drury LO, Dubus G, Dutson K, Dyks J, Dyrda M, Edwards T, Egberts K, Eger P, Ernenwein JP, Eschbach S, Farnier C, Fegan S, Fernandes MV, Fiasson A, Fontaine G, Förster A, Funk S, Füßling M, Gabici S, Gajdus M, Gallant YA, Garrigoux T, Giavitto G, Giebels B, Glicenstein JF, Gottschall D, Goyal A, Grondin MH, Grudzińska M, Hadasch D, Hahn J, Hawkes J, Heinzelmann G, Henri G, Hermann G, Hervet O, Hillert A, Hinton JA, 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 MA, Katarzyński K, Katz U, Kerszberg D, Khélifi B, Kieffer M, King J, Klepser S, Klochkov D, Kluźniak W, Kolitzus D, Komin N, Kosack K, Krakau S, Kraus M, Krayzel F, Krüger PP, Laffon H, Lamanna G, Lau J, Lees JP, Lefaucheur J, Lefranc V, Lemière A, Lemoine-Goumard M, Lenain JP, 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 PJ, Menzler U, Meyer M, Mitchell AM, Moderski R, Mohamed M, Morå K, Moulin E, Murach T, de Naurois M, Niederwanger F, Niemiec J, Oakes L, Odaka H, Ohm S, Öttl S, Ostrowski M, Oya I, Padovani M, Panter M, Parsons RD, Paz Arribas M, Pekeur NW, Pelletier G, Petrucci PO, Peyaud B, Pita S, Poon H, Prokhorov D, Prokoph H, Pühlhofer G, Punch M, 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 CB, Sahakian V, Salek D, Sanchez DA, Santangelo A, Sasaki M, Schlickeiser R, Schüssler F, Schulz A, Schwanke U, Schwemmer S, Seyffert AS, 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 JP, Tavernier T, Taylor AM, 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, Völk HJ, Vuillaume T, Wadiasingh Z, Wagner SJ, Wagner P, Wagner RM, White R, Wierzcholska A, Willmann P, Wörnlein A, Wouters D, Yang R, Zabalza V, Zaborov D, Zacharias M, Zdziarski AA, Zech A, Zefi F, Ziegler A, and Żywucka N

Abstract

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 γ-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 γ-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 ⟨σv⟩. 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 ⟨σv⟩ values of 6×10^{-26}  cm^{3} s^{-1} in the W^{+}W^{-} channel for a DM particle mass of 1.5 TeV, and 2×10^{-26}  cm^{3} s^{-1} in the τ^{+}τ^{-} channel for a 1 TeV mass. For the first time, ground-based γ-ray observations have reached sufficient sensitivity to probe ⟨σv⟩ values expected from the thermal relic density for TeV DM particles.

Published
2016
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13. Constraints on an annihilation signal from a core of constant dark matter density around the milky way center with H.E.S.S.

Author

Abramowski A, Aharonian F, Ait Benkhali F, Akhperjanian AG, Angüner EO, Backes M, Balenderan S, Balzer A, Barnacka A, Becherini Y, Becker Tjus J, Berge D, Bernhard S, Bernlöhr K, Birsin E, Biteau J, Böttcher M, Boisson C, Bolmont J, Bordas P, Bregeon J, Brun F, Brun P, Bryan M, Bulik T, Carrigan S, Casanova S, Chadwick PM, Chakraborty N, Chalme-Calvet R, Chaves RC, Chrétien M, Colafrancesco S, Cologna G, Conrad J, Couturier C, Cui Y, Davids ID, Degrange B, Deil C, deWilt P, Djannati-Ataï A, Domainko W, Donath A, Drury LO, Dubus G, Dutson K, Dyks J, Dyrda M, Edwards T, Egberts K, Eger P, Espigat P, Farnier C, Fegan S, Feinstein F, Fernandes MV, Fernandez D, Fiasson A, Fontaine G, Förster A, Füßling M, Gabici S, Gajdus M, Gallant YA, Garrigoux T, Giavitto G, Giebels B, Glicenstein JF, Gottschall D, Grondin MH, Grudzińska M, Hadasch D, Häffner S, Hahn J, Harris J, Heinzelmann G, Henri G, Hermann G, Hervet O, Hillert A, Hinton JA, Hofmann W, Hofverberg P, Holler M, Horns D, Ivascenko A, Jacholkowska A, Jahn C, Jamrozy M, Janiak M, Jankowsky F, Jung-Richardt I, Kastendieck MA, Katarzyński K, Katz U, Kaufmann S, Khélifi B, Kieffer M, Klepser S, Klochkov D, Kluźniak W, Kolitzus D, Komin N, Kosack K, Krakau S, Krayzel F, Krüger PP, Laffon H, Lamanna G, Lefaucheur J, Lefranc V, Lemière A, Lemoine-Goumard M, Lenain JP, Lohse T, Lopatin A, Lu CC, Marandon V, Marcowith A, Marx R, Maurin G, Maxted N, Mayer M, McComb TJ, Méhault J, Meintjes PJ, Menzler U, Meyer M, Mitchell AM, Moderski R, Mohamed M, Morå K, Moulin E, Murach T, de Naurois M, Niemiec J, Nolan SJ, Oakes L, Odaka H, Ohm S, Opitz B, Ostrowski M, Oya I, Panter M, Parsons RD, Paz Arribas M, Pekeur NW, Pelletier G, Petrucci PO, Peyaud B, Pita S, Poon H, Pühlhofer G, Punch M, 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 CB, Sahakian V, Salek D, Sanchez DA, Santangelo A, Schlickeiser R, Schüssler F, Schulz A, Schwanke U, Schwarzburg S, Schwemmer S, Sol H, Spanier F, Spengler G, Spies F, Stawarz Ł, Steenkamp R, Stegmann C, Stinzing F, Stycz K, Sushch I, Tavernet JP, Tavernier T, Taylor AM, 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, Völk HJ, Volpe F, Vorster M, Vuillaume T, Wagner SJ, Wagner P, Wagner RM, Ward M, Weidinger M, Weitzel Q, White R, Wierzcholska A, Willmann P, Wörnlein A, Wouters D, Yang R, Zabalza V, Zaborov D, Zacharias M, Zdziarski AA, Zech A, and Zechlin HS

Abstract

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 ∼9  h of on-off observations. Upper limits on the velocity averaged cross section, ⟨σv⟩, for the annihilation of dark matter particles with masses in the range of ∼300  GeV 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 ⟨σv⟩ that are larger than 3×10^{-24}  cm^{3}/s are excluded for dark matter particles with masses between ∼1 and ∼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 ⟨σv⟩ for annihilating TeV mass dark matter without the assumption of a centrally cusped dark matter density distribution in the search region.

Published
2015
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