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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
physics and astronomy
Search for dark matter annihilation signatures in H.E.S.S. observations of dwarf spheroidal galaxies
Physical Review D - Particles, Fields, Gravitation and Cosmology, Volume 90, No. 11, Article 112012, Year 2014
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Description
Dwarf spheroidal galaxies of the Local Group are close satellites of the Milky Way characterized by a large mass-to-light ratio and are not expected to be the site of nonthermal high-energy gamma-ray emission or intense star formation. Therefore they are among the most promising candidates for indirect dark matter searches. During the last years the High Energy Stereoscopic System (H.E.S.S.) of imaging atmospheric Cherenkov telescopes observed five of these dwarf galaxies for more than 140 hours in total, searching for TeV gamma-ray emission from annihilation of dark matter particles. The new results of the deep exposure of the Sagittarius dwarf spheroidal galaxy, the first observations of the Coma Berenices and Fornax dwarves and the reanalysis of two more dwarf spheroidal galaxies already published by the H.E.S.S. Collaboration, Carina and Sculptor, are presented. In the absence of a significant signal new constraints on the annihilation cross section applicable to weakly interacting massive particles (WIMPs) are derived by combining the observations of the five dwarf galaxies. The combined exclusion limit depends on the WIMP mass and the best constraint is reached at 1-2 TeV masses with a cross-section upper bound of ∼3.9×10-24cm3s-1 at a 95% confidence level. © 2014 American Physical Society.
Authors & Co-Authors
Abramowski, Attila
Germany, Hamburg
Universität Hamburg
Aharonian, F. A.
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Ireland, Dublin
Institiúid Ard-lénn Bhaile Átha Cliath
Armenia, Yerevan
National Academy of Sciences of the Republic of Armenia
Ait Benkhali, F.
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Akhperjanian, Ashot G.
Armenia, Yerevan
National Academy of Sciences of the Republic of Armenia
Armenia, Yerevan
Yerevan Physics Institute
Angüner, Ekrem Oǧuzhan
Germany, Berlin
Humboldt-universität zu Berlin
Backes, Michael
Namibia, Windhoek
University of Namibia
Balenderan, S.
United Kingdom, Durham
Durham University
Balzer, Arnim
Netherlands, Amsterdam
Universiteit Van Amsterdam
Barnacka, Anna
Poland, Krakow
Uniwersytet Jagielloński
United States, Cambridge
Harvard-smithsonian Center for Astrophysics
Becherini, Yvonne
Sweden, Vaxjo
Linnaeus University, Växjö
Becker-Tjus, Julia
Germany, Bochum
Ruhr-universitat Bochum
Berge, David
Netherlands, Amsterdam
Universiteit Van Amsterdam
Bernhard, Sabrina
Austria, Innsbruck
Universität Innsbruck
Bernlöhr, Konrad
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Germany, Berlin
Humboldt-universität zu Berlin
Birsin, Emrah
Germany, Berlin
Humboldt-universität zu Berlin
Biteau, Jonathan
France, Paris
In2p3 - Institut National de Physique Nucléaire et de Physique Des Particules
United States, Santa Cruz
University of California, Santa Cruz
Boettcher, M.
South Africa, Potchefstroom
North-west University
Boisson, Catherine
France, Paris
Cnrs Centre National de la Recherche Scientifique
Bolmont, Julien
France, Paris
Sorbonne Université
Bordas, Pol
Germany, Tubingen
Eberhard Karls Universität Tübingen
Bregeon, Johan
France, Montpellier
Université de Montpellier
Brun, François
France, Gif-sur-yvette
Cea Saclay
Brun, Pierre
France, Gif-sur-yvette
Cea Saclay
Bryan, Marta L.
Netherlands, Amsterdam
Universiteit Van Amsterdam
Bulk, Tomasz
Poland, Warsaw
University of Warsaw
Carrigan, Svenja
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Casanova, Sabrina
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Poland, Krakow
Henryk Niewodniczanski Institute of Nuclear Physics of the Polish Academy of Sciences
Chadwick, Paula M.
United Kingdom, Durham
Durham University
Chakraborty, Nachiketa
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Chalmé-Calvet, Raphaël
France, Paris
Sorbonne Université
Chaves, Ryan C.G.
France, Montpellier
Université de Montpellier
Chrétien, Mathieu
France, Paris
Sorbonne Université
Colafrancesco, Sergio
South Africa, Johannesburg
University of the Witwatersrand
Cologna, Gabriele
Germany, Heidelberg
Universität Heidelberg
Conrad, Jan
Sweden, Stockholm
Stockholms Universitet
Couturier, C.
France, Paris
Sorbonne Université
Cui, Yudong
Germany, Tubingen
Eberhard Karls Universität Tübingen
Dalton, Matthew L.
France, Paris
In2p3 - Institut National de Physique Nucléaire et de Physique Des Particules
Davids, Isak Delberth
Namibia, Windhoek
University of Namibia
South Africa, Potchefstroom
North-west University
Degrange, Bernard
France, Paris
In2p3 - Institut National de Physique Nucléaire et de Physique Des Particules
Deil, Christoph
Germany, Heidelberg
Max-planck-institut Für Kernphysik
DeWilt, P.
Australia, Adelaide
The University of Adelaide
Djannati-Ataï, Arache
France, Paris
Université Paris Cité
Domainko, Wilfried F.
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Donath, Axel
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Drury, L. O.C.
Ireland, Dublin
Institiúid Ard-lénn Bhaile Átha Cliath
Dubus, Guillaume
France, Saint Martin D'heres
Verimag
Dutson, Kate L.
United Kingdom, Leicester
University of Leicester
Dyks, Jarosław
Poland, Warsaw
Nicolaus Copernicus Astronomical Center of the Polish Academy of Sciences
Dyrda, Michael
Poland, Krakow
Henryk Niewodniczanski Institute of Nuclear Physics of the Polish Academy of Sciences
Egberts, Kathrin
Germany, Potsdam
Universität Potsdam
Eger, Peter A.
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Espigat, P.
France, Paris
Université Paris Cité
Farnier, Christian
Sweden, Stockholm
Stockholms Universitet
Fegan, Stephen J.
France, Paris
In2p3 - Institut National de Physique Nucléaire et de Physique Des Particules
Feinstein, Fabrice
France, Montpellier
Université de Montpellier
Fernandes, Milton Virgílio
Germany, Hamburg
Universität Hamburg
Fernandez, Diane
France, Montpellier
Université de Montpellier
Fiasson, Armand
France, Paris
In2p3 - Institut National de Physique Nucléaire et de Physique Des Particules
Fontaine, Gérard
France, Paris
In2p3 - Institut National de Physique Nucléaire et de Physique Des Particules
Förster, Andreas
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Füssling, Matthias
Germany, Potsdam
Universität Potsdam
Gabici, Stefano
France, Paris
Université Paris Cité
Gajdus, Michael
Germany, Berlin
Humboldt-universität zu Berlin
Gallant, Yves A.
France, Montpellier
Université de Montpellier
Garrigoux, Tania
France, Paris
Sorbonne Université
Giavitto, Gianluca
Germany, Hamburg
Deutsches Elektronen-synchrotron Desy
Giebels, Berrie
France, Paris
In2p3 - Institut National de Physique Nucléaire et de Physique Des Particules
Glicenstein, Jean François
France, Gif-sur-yvette
Cea Saclay
Gottschall, Daniel
Germany, Tubingen
Eberhard Karls Universität Tübingen
Goudelis, Andreas
France, Paris
In2p3 - Institut National de Physique Nucléaire et de Physique Des Particules
France, Paris
Cnrs Centre National de la Recherche Scientifique
Grondin, Marie Hélène
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Germany, Heidelberg
Universität Heidelberg
Grudzínska, Mira
Poland, Warsaw
University of Warsaw
Hadasch, Daniela
Austria, Innsbruck
Universität Innsbruck
Häffner, Stephanie
Germany, Erlangen
Friedrich-alexander-universität Erlangen-nürnberg
Hahn, Joachim
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Harris, Jonathan
United Kingdom, Durham
Durham University
Heinzelmann, Götz
Germany, Hamburg
Universität Hamburg
Henri, Gilles
France, Saint Martin D'heres
Verimag
Hermann, German
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Hervet, Olivier
France, Paris
Cnrs Centre National de la Recherche Scientifique
Hillert, Andreas
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Hinton, James A.J.A.
United Kingdom, Leicester
University of Leicester
Hofmann, Werner
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Hofverberg, Petter
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Holler, Markus
Germany, Potsdam
Universität Potsdam
Horns, Dieter
Germany, Hamburg
Universität Hamburg
Ivascenko, Alex
South Africa, Potchefstroom
North-west University
Jachołkowska, Agnieszka
France, Paris
Sorbonne Université
Jahn, C.
Germany, Erlangen
Friedrich-alexander-universität Erlangen-nürnberg
Jamrozy, Marek
Poland, Krakow
Uniwersytet Jagielloński
Janiak, Mateusz
Poland, Warsaw
Nicolaus Copernicus Astronomical Center of the Polish Academy of Sciences
Jankowsky, Felix
Germany, Heidelberg
Universität Heidelberg
Jung-Richardt, Ira V.
Germany, Erlangen
Friedrich-alexander-universität Erlangen-nürnberg
Kastendieck, Max Anton
Germany, Hamburg
Universität Hamburg
Katarzyński, Krzysztof
Poland, Torun
Uniwersytet Mikołaja Kopernika w Toruniu
Katz, Ulrich F.
Germany, Erlangen
Friedrich-alexander-universität Erlangen-nürnberg
Kaufmann, Sarah
Germany, Heidelberg
Universität Heidelberg
Khélifi, Bruno
France, Paris
Université Paris Cité
Kieffer, M.
France, Paris
Sorbonne Université
Klepser, Stefan
Germany, Hamburg
Deutsches Elektronen-synchrotron Desy
Klochkov, Dmitry K.
Germany, Tubingen
Eberhard Karls Universität Tübingen
Klužniak, Wlodzimierz
Poland, Warsaw
Nicolaus Copernicus Astronomical Center of the Polish Academy of Sciences
Kolitzus, D.
Austria, Innsbruck
Universität Innsbruck
Komin, Nukri
South Africa, Johannesburg
University of the Witwatersrand
Kosack, Karl
France, Gif-sur-yvette
Cea Saclay
Krakau, S.
Germany, Bochum
Ruhr-universitat Bochum
Krayzel, Fabien
France, Paris
In2p3 - Institut National de Physique Nucléaire et de Physique Des Particules
Krüger, P. P.
South Africa, Potchefstroom
North-west University
Laffon, Hélène
France, Paris
In2p3 - Institut National de Physique Nucléaire et de Physique Des Particules
Lamanna, Giovanni
France, Paris
In2p3 - Institut National de Physique Nucléaire et de Physique Des Particules
Lefranc, Valentin
France, Gif-sur-yvette
Cea Saclay
Lemière, Anne
France, Paris
Université Paris Cité
Lemoine-Goumard, Marianne
France, Paris
In2p3 - Institut National de Physique Nucléaire et de Physique Des Particules
Lenain, Jean Philippe
France, Paris
Sorbonne Université
Lohse, Thomas
Germany, Berlin
Humboldt-universität zu Berlin
Lu, Chiachun
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Marandon, Vincent
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Marcowith, Alexandre
France, Montpellier
Université de Montpellier
Marx, Ramin
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Maurin, Guillaume T.
France, Paris
In2p3 - Institut National de Physique Nucléaire et de Physique Des Particules
Maxted, Nigel I.
Australia, Adelaide
The University of Adelaide
Mayer, Michael
Germany, Potsdam
Universität Potsdam
McComb, T. J.Lowry
United Kingdom, Durham
Durham University
Méhault, Jérémie
France, Paris
In2p3 - Institut National de Physique Nucléaire et de Physique Des Particules
Meintjes, Pieter J.
South Africa, Bloemfontein
University of the Free State
Meyer, Manuel S.
Sweden, Stockholm
Stockholms Universitet
Mitchell, Alison M.W.
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Moderski, Rafaƚ
Poland, Warsaw
Nicolaus Copernicus Astronomical Center of the Polish Academy of Sciences
Mora, Karen Salomé Caballero
Sweden, Stockholm
Stockholms Universitet
Moulin, E.
France, Gif-sur-yvette
Cea Saclay
Murach, Thomas
Germany, Berlin
Humboldt-universität zu Berlin
de Naurois, Mathieu
France, Paris
In2p3 - Institut National de Physique Nucléaire et de Physique Des Particules
Niemiec, Jacek
Poland, Krakow
Henryk Niewodniczanski Institute of Nuclear Physics of the Polish Academy of Sciences
Nolan, Sam J.
United Kingdom, Durham
Durham University
Ohm, Stefan
Germany, Hamburg
Deutsches Elektronen-synchrotron Desy
Ostrowski, Michałl
Poland, Krakow
Uniwersytet Jagielloński
Oya, Igor
Germany, Berlin
Humboldt-universität zu Berlin
Panter, M.
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Parsons, Robert Daniel
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Pekeur, Nikki W.
South Africa, Potchefstroom
North-west University
Pelletier, Guy
France, Saint Martin D'heres
Verimag
Petrucci, Pierre Olivier
France, Saint Martin D'heres
Verimag
Pita, Santiago
France, Paris
Université Paris Cité
Poon, Helen
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Pûhlhofer, Gerd
Germany, Tubingen
Eberhard Karls Universität Tübingen
Punch, Michael
France, Paris
Université Paris Cité
Quirrenbach, Andreas
Germany, Heidelberg
Universität Heidelberg
Reimer, Anita
Austria, Innsbruck
Universität Innsbruck
Reimer, Olaf
Austria, Innsbruck
Universität Innsbruck
Renaud, Matthieu
France, Montpellier
Université de Montpellier
De Los Reyes, Raquel R.
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Rieger, Frank M.
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Rob, L.
Czech Republic, Prague
Charles University
Rosier-Lees, Sylvie
France, Paris
In2p3 - Institut National de Physique Nucléaire et de Physique Des Particules
Rowell, Gavin P.
Australia, Adelaide
The University of Adelaide
Rudak, Bronisław
Poland, Warsaw
Nicolaus Copernicus Astronomical Center of the Polish Academy of Sciences
Rulten, Cameron B.
France, Paris
Cnrs Centre National de la Recherche Scientifique
Sahakian, Vardan H.
Armenia, Yerevan
National Academy of Sciences of the Republic of Armenia
Armenia, Yerevan
Yerevan Physics Institute
Šálek, David
Netherlands, Amsterdam
Fom-institute of Subatomic Physics - Nikhef
Sánchez, David A.
France, Paris
In2p3 - Institut National de Physique Nucléaire et de Physique Des Particules
Santangelo, Andrea E.
Germany, Tubingen
Eberhard Karls Universität Tübingen
Schlickeiser, Reinhard
Germany, Bochum
Ruhr-universitat Bochum
Schüssler, Fabian
France, Gif-sur-yvette
Cea Saclay
Schwanke, Ullrich
Germany, Berlin
Humboldt-universität zu Berlin
Schwarzburg, S.
Germany, Tubingen
Eberhard Karls Universität Tübingen
Sol, Hélène
France, Paris
Cnrs Centre National de la Recherche Scientifique
Spanier, Felix
South Africa, Potchefstroom
North-west University
Spengler, Gerrit
Sweden, Stockholm
Stockholms Universitet
Stawarz, Łukasz
Poland, Krakow
Uniwersytet Jagielloński
Steenkamp, R.
Namibia, Windhoek
University of Namibia
Stegmann, Christian
Germany, Potsdam
Universität Potsdam
Germany, Hamburg
Deutsches Elektronen-synchrotron Desy
Stinzing, Friedrich
Germany, Erlangen
Friedrich-alexander-universität Erlangen-nürnberg
Sushch, Iurii
Germany, Berlin
Humboldt-universität zu Berlin
South Africa, Potchefstroom
North-west University
Tavernet, Jean Paul
France, Paris
Sorbonne Université
Terrier, Régis
France, Paris
Université Paris Cité
Tluczykont, Martin
Germany, Hamburg
Universität Hamburg
Valerius, Kathrin
Germany, Erlangen
Friedrich-alexander-universität Erlangen-nürnberg
Van Eldik, Christopher
Germany, Erlangen
Friedrich-alexander-universität Erlangen-nürnberg
van Soelen, Brian V.A.N.
South Africa, Bloemfontein
University of the Free State
Vasileiadis, Georges
France, Montpellier
Université de Montpellier
Venter, C.
South Africa, Potchefstroom
North-west University
Viana, Aion A.
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Vincent, P.
France, Paris
Sorbonne Université
Vink, Jacco S.
Netherlands, Amsterdam
Universiteit Van Amsterdam
Völk, Heinrich J.
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Volpe, Francesca
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Vorster, Michael J.
South Africa, Potchefstroom
North-west University
Wagner, Stefan J.
Germany, Heidelberg
Universität Heidelberg
Wagner, Philipp
Germany, Berlin
Humboldt-universität zu Berlin
Ward, Martin J.
United Kingdom, Durham
Durham University
Weidinger, Matthias
Germany, Bochum
Ruhr-universitat Bochum
White, Richard J.
United Kingdom, Leicester
University of Leicester
Wierzcholska, Alicja
Poland, Krakow
Uniwersytet Jagielloński
Wouters, Denis
France, Gif-sur-yvette
Cea Saclay
Yang, Ruizhi
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Zabalza, Víctor
Germany, Heidelberg
Max-planck-institut Für Kernphysik
United Kingdom, Leicester
University of Leicester
Zaborov, Dmitry N.
France, Paris
In2p3 - Institut National de Physique Nucléaire et de Physique Des Particules
Zacharias, Michael
Germany, Heidelberg
Universität Heidelberg
Zdziarski, Andrzej A.
Poland, Warsaw
Nicolaus Copernicus Astronomical Center of the Polish Academy of Sciences
Zech, Andreas
France, Paris
Cnrs Centre National de la Recherche Scientifique
Zechlin, Hannes
Germany, Hamburg
Universität Hamburg
Statistics
Citations: 98
Authors: 202
Affiliations: 39
Identifiers
Doi:
10.1103/PhysRevD.90.112012
ISSN:
15507998
Research Areas
Environmental