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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
physics and astronomy
Searches for gamma-ray lines and 'pure WIMP' spectra from Dark Matter annihilations in dwarf galaxies with H.E.S.S.
Journal of Cosmology and Astroparticle Physics, Volume 2018, No. 11, Article 037, Year 2018
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Description
Dwarf spheroidal galaxies are among the most promising targets for detecting signals of Dark Matter (DM) annihilations. The H.E.S.S. experiment has observed five of these systems for a total of about 130 hours. The data are re-analyzed here, and, in the absence of any detected signals, are interpreted in terms of limits on the DM annihilation cross section. Two scenarios are considered: i) DM annihilation into mono-energetic gamma-rays and ii) DM in the form of pure WIMP multiplets that, annihilating into all electroweak bosons, produce a distinctive gamma-ray spectral shape with a high-energy peak at the DM mass and a lower-energy continuum. For case i), upper limits at 95% confidence level of about σ v ≲ 3 × 10-25 cm3 s-1 are obtained in the mass range of 400 GeV to 1 TeV. For case ii), the full spectral shape of the models is used and several excluded regions are identified, but the thermal masses of the candidates are not robustly ruled out. © 2018 IOP Publishing Ltd and Sissa Medialab.
Authors & Co-Authors
Cirelli, Marco
France, Paris
Laboratoire de Physique Théorique et Hautes Énergies
Panci, Paolo
Switzerland, Geneva
Organisation Européenne Pour la Recherche Nucléaire
Sala, Filippo
France, Paris
Laboratoire de Physique Théorique et Hautes Énergies
Germany, Hamburg
Deutsches Elektronen-synchrotron Desy
Silk, Joseph I.
France, Paris
Cnrs Centre National de la Recherche Scientifique
United Kingdom, Oxford
University of Oxford
United States, Baltimore
Johns Hopkins University
Taoso, Marco
Italy, Turin
Istituto Nazionale Di Fisica Nucleare, Sezione Di Torino
Spain, Madrid
Universidad Autónoma de Madrid
Abdalla, Hassan
South Africa, Potchefstroom
North-west University
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
Benkhali, Faical Ait
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Angüner, Ekrem Oǧuzhan
France, Paris
In2p3 - Institut National de Physique Nucléaire et de Physique Des Particules
Arakawa, Masanori
Japan, Tokyo
Rikkyo University
Arcaro, Cornelia H.E.
South Africa, Potchefstroom
North-west University
Armand, Céline
France, Chambery
Université Savoie Mont Blanc
Arrieta, M.
France, Paris
Université Psl
Backes, Michael
South Africa, Potchefstroom
North-west University
Namibia, Windhoek
University of Namibia
Barnard, Monica A.
South Africa, Potchefstroom
North-west University
Becherini, Yvonne
Sweden, Vaxjo
Linnaeus University, Växjö
Becker-Tjus, Julia
Germany, Bochum
Ruhr-universitat Bochum
Berge, David
Germany, Hamburg
Deutsches Elektronen-synchrotron Desy
Bernhard, Sabrina
Austria, Innsbruck
Universität Innsbruck
Bernlöhr, Konrad
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Blackwell, Rebecca
Australia, Adelaide
The University of Adelaide
Boettcher, M.
South Africa, Potchefstroom
North-west University
Boisson, Catherine
France, Paris
Université Psl
Bolmont, Julien
France, Paris
Laboratoire de Physique Nucléaire et de Hautes Energies
Bonnefoy, Simon
Germany, Hamburg
Deutsches Elektronen-synchrotron Desy
Bordas, Pol
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Bregeon, Johan
France, Montpellier
Université de Montpellier
Brun, François
France, Paris
In2p3 - Institut National de Physique Nucléaire et de Physique Des Particules
Brun, Pierre
France, Gif-sur-yvette
Commissariat a L'energie Atomique et Aux Energies Alternatives
Bryan, Marta L.
Netherlands, Amsterdam
Universiteit Van Amsterdam
Büchele, Matthias
Germany, Erlangen
Friedrich-alexander-universität Erlangen-nürnberg
Bulk, Tomasz
Poland, Warsaw
University of Warsaw
Bylund, Tomas
Sweden, Vaxjo
Linnaeus University, Växjö
Capasso, Massimo
Germany, Tubingen
Eberhard Karls Universität Tübingen
Caroff, Sami
France, Paris
In2p3 - Institut National de Physique Nucléaire et de Physique Des Particules
Carosi, Alessandro
France, Chambery
Université Savoie Mont Blanc
Casanova, Sabrina
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Poland, Krakow
Polska Akademia Nauk Oddzial w Krakowie
Cerruti, Matteo
France, Paris
Laboratoire de Physique Nucléaire et de Hautes Energies
Chakraborty, Nachiketa
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Chandra, Sunil
South Africa, Potchefstroom
North-west University
Chaves, Ryan C.G.
France, Montpellier
Université de Montpellier
Chen, Andrew W.
South Africa, Johannesburg
University of the Witwatersrand
Colafrancesco, Sergio
South Africa, Johannesburg
University of the Witwatersrand
Condon, Benjamin
France, Paris
In2p3 - Institut National de Physique Nucléaire et de Physique Des Particules
Davids, Isak Delberth
Namibia, Windhoek
University of Namibia
Deil, Christoph
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Devin, Justine
France, Montpellier
Université de Montpellier
DeWilt, P.
Australia, Adelaide
The University of Adelaide
Dirson, Ludmilla
Germany, Hamburg
Universität Hamburg
Djannati-Ataï, Arache
France, Gif-sur-yvette
Commissariat a L'energie Atomique et Aux Energies Alternatives
Dmytriiev, Anton
France, Paris
Université Psl
Donath, Axel
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Doroshenko, V. T.
Germany, Tubingen
Eberhard Karls Universität Tübingen
Drury, L. O.C.
Ireland, Dublin
Institiúid Ard-lénn Bhaile Átha Cliath
Dyks, Jarosław
Poland, Warszawa
Polish Academy of Sciences
Egberts, Kathrin
Germany, Potsdam
Universität Potsdam
Emery, Gabriel
France, Paris
Laboratoire de Physique Nucléaire et de Hautes Energies
Ernenwein, Jean Pierre
France, Paris
In2p3 - Institut National de Physique Nucléaire et de Physique Des Particules
Eschbach, Stefan
Germany, Erlangen
Friedrich-alexander-universität Erlangen-nürnberg
Fegan, Stephen J.
France, Paris
In2p3 - Institut National de Physique Nucléaire et de Physique Des Particules
Fiasson, Armand
France, Chambery
Université Savoie Mont Blanc
Fontaine, Gérard
France, Paris
In2p3 - Institut National de Physique Nucléaire et de Physique Des Particules
Funk, Stefan
Germany, Erlangen
Friedrich-alexander-universität Erlangen-nürnberg
Füssling, Matthias
Germany, Hamburg
Deutsches Elektronen-synchrotron Desy
Gabici, Stefano
France, Gif-sur-yvette
Commissariat a L'energie Atomique et Aux Energies Alternatives
Gallant, Yves A.
France, Montpellier
Université de Montpellier
Gaté, Florian
France, Chambery
Université Savoie Mont Blanc
Giavitto, Gianluca
Germany, Hamburg
Deutsches Elektronen-synchrotron Desy
Glawion, Dorit Eisenacher
Germany, Heidelberg
Universität Heidelberg
Glicenstein, Jean François
France, Gif-sur-yvette
Commissariat a L'energie Atomique et Aux Energies Alternatives
Gottschall, Daniel
Germany, Tubingen
Eberhard Karls Universität Tübingen
Grondin, Marie Hélène
France, Paris
In2p3 - Institut National de Physique Nucléaire et de Physique Des Particules
Hahn, Joachim
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Haupt, Maria
Germany, Hamburg
Deutsches Elektronen-synchrotron Desy
Heinzelmann, Götz
Germany, Hamburg
Universität Hamburg
Henri, Gilles
France, Saint Martin D'heres
Institut de Planétologie et D’astrophysique de Grenoble Ipag
Hermann, German
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Hinton, James A.J.A.
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Hofmann, Werner
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Hoischen, Clemens
Germany, Potsdam
Universität Potsdam
Holch, T. L.
Germany, Berlin
Humboldt-universität zu Berlin
Holler, Markus
Austria, Innsbruck
Universität Innsbruck
Horns, Dieter
Germany, Hamburg
Universität Hamburg
Huber, David
Austria, Innsbruck
Universität Innsbruck
Iwasaki, Hiroyoshi
Japan, Tokyo
Rikkyo University
Jachołkowska, Agnieszka
France, Paris
Laboratoire de Physique Nucléaire et de Hautes Energies
Jamrozy, Marek
Poland, Krakow
Uniwersytet Jagielloński
Jankowsky, David
Germany, Erlangen
Friedrich-alexander-universität Erlangen-nürnberg
Jankowsky, Felix
Germany, Heidelberg
Universität Heidelberg
Jouvin, Léa
France, Gif-sur-yvette
Commissariat a L'energie Atomique et Aux Energies Alternatives
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
Katsuragawa, Miho
Japan, Tokyo
The University of Tokyo
Katz, Ulrich F.
Germany, Erlangen
Friedrich-alexander-universität Erlangen-nürnberg
Kerszberg, Daniel
France, Paris
Laboratoire de Physique Nucléaire et de Hautes Energies
Khangulyan, D.
Japan, Tokyo
Rikkyo University
Khélifi, Bruno
France, Gif-sur-yvette
Commissariat a L'energie Atomique et Aux Energies Alternatives
King, Johannes
Germany, Heidelberg
Universität Heidelberg
Klepser, Stefan
Germany, Hamburg
Deutsches Elektronen-synchrotron Desy
Klužniak, Wlodzimierz
Poland, Warszawa
Polish Academy of Sciences
Komin, Nukri
South Africa, Johannesburg
University of the Witwatersrand
Kosack, Karl
France, Gif-sur-yvette
Commissariat a L'energie Atomique et Aux Energies Alternatives
Krakau, S.
Germany, Bochum
Ruhr-universitat Bochum
Krüger, P. P.
South Africa, Potchefstroom
North-west University
Lamanna, Giovanni
France, Chambery
Université Savoie Mont Blanc
Lau, James C.
Australia, Adelaide
The University of Adelaide
Lemière, Anne
France, Gif-sur-yvette
Commissariat a L'energie Atomique et Aux Energies Alternatives
Lemoine-Goumard, Marianne
France, Paris
In2p3 - Institut National de Physique Nucléaire et de Physique Des Particules
Lenain, Jean Philippe
France, Paris
Laboratoire de Physique Nucléaire et de Hautes Energies
Lohse, Thomas
Germany, Berlin
Humboldt-universität zu Berlin
López-Coto, Rubén
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Lypova, Iryna
Germany, Hamburg
Deutsches Elektronen-synchrotron Desy
Malyshev, Denys
Germany, Tubingen
Eberhard Karls Universität Tübingen
Marandon, Vincent
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Marcowith, Alexandre
France, Montpellier
Université de Montpellier
Martí.-Devesa, G.
Austria, Innsbruck
Universität Innsbruck
Marx, Ramin
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Maurin, Guillaume T.
France, Chambery
Université Savoie Mont Blanc
Meintjes, Pieter J.
South Africa, Bloemfontein
University of the Free State
Mitchell, Alison M.W.
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Moderski, Rafaƚ
Poland, Warszawa
Polish Academy of Sciences
Mohamed, Mahmoud
Germany, Heidelberg
Universität Heidelberg
Mohrmann, Lars
Germany, Erlangen
Friedrich-alexander-universität Erlangen-nürnberg
Moulin, E.
France, Gif-sur-yvette
Commissariat a L'energie Atomique et Aux Energies Alternatives
Murach, Thomas
Germany, Hamburg
Deutsches Elektronen-synchrotron Desy
de Naurois, Mathieu
France, Paris
In2p3 - Institut National de Physique Nucléaire et de Physique Des Particules
Ndiyavala, Hambeleleni
South Africa, Potchefstroom
North-west University
Niemiec, Jacek
Poland, Krakow
Polska Akademia Nauk Oddzial w Krakowie
O'Brien, Paul T.
United Kingdom, Leicester
University of Leicester
Ohm, Stefan
Germany, Hamburg
Deutsches Elektronen-synchrotron Desy
Ostrowski, Michałl
Poland, Krakow
Uniwersytet Jagielloński
Oya, Igor
Germany, Hamburg
Deutsches Elektronen-synchrotron Desy
Padovani, Marco
France, Montpellier
Université de Montpellier
Panter, M.
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Parsons, Robert Daniel
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Petrucci, Pierre Olivier
France, Saint Martin D'heres
Institut de Planétologie et D’astrophysique de Grenoble Ipag
Pita, Santiago
France, Gif-sur-yvette
Commissariat a L'energie Atomique et Aux Energies Alternatives
Poireau, Vincent
France, Chambery
Université Savoie Mont Blanc
Noel, Angel Priyana
Poland, Krakow
Uniwersytet Jagielloński
Prokhorov, Dmitry A.
South Africa, Johannesburg
University of the Witwatersrand
Prokoph, Heike
Germany, Hamburg
Deutsches Elektronen-synchrotron Desy
Pûhlhofer, Gerd
Germany, Tubingen
Eberhard Karls Universität Tübingen
Punch, Michael
Sweden, Vaxjo
Linnaeus University, Växjö
France, Gif-sur-yvette
Commissariat a L'energie Atomique et Aux Energies Alternatives
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
Rieger, Frank M.
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Rowell, Gavin P.
Australia, Adelaide
The University of Adelaide
Rudak, Bronisław
Poland, Warszawa
Polish Academy of Sciences
Sahakian, Vardan H.
Armenia, Yerevan
National Academy of Sciences of the Republic of Armenia
Armenia, Yerevan
Yerevan Physics Institute
Sánchez, David A.
France, Chambery
Université Savoie Mont Blanc
Santangelo, Andrea E.
Germany, Tubingen
Eberhard Karls Universität Tübingen
Sasaki, Manami
Germany, Erlangen
Friedrich-alexander-universität Erlangen-nürnberg
Schüssler, Fabian
France, Gif-sur-yvette
Commissariat a L'energie Atomique et Aux Energies Alternatives
Schwanke, Ullrich
Germany, Berlin
Humboldt-universität zu Berlin
Seyffert, Albertus S.
South Africa, Potchefstroom
North-west University
Shafi, Nebiha
South Africa, Johannesburg
University of the Witwatersrand
Shilon, Idan
Germany, Erlangen
Friedrich-alexander-universität Erlangen-nürnberg
Shiningayamwe, K.
Namibia, Windhoek
University of Namibia
Sinha, Atreyee
France, Gif-sur-yvette
Commissariat a L'energie Atomique et Aux Energies Alternatives
Sol, Hélène
France, Paris
Université Psl
Spanier, Felix
South Africa, Potchefstroom
North-west University
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
Steppa, Constantin
Germany, Potsdam
Universität Potsdam
Takahashi, Tadayuki
Japan, Tokyo
The University of Tokyo
Tavernet, Jean Paul
France, Paris
Laboratoire de Physique Nucléaire et de Hautes Energies
Terrier, Régis
France, Gif-sur-yvette
Commissariat a L'energie Atomique et Aux Energies Alternatives
Tibaldo, Luigi
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Tluczykont, Martin
Germany, Hamburg
Universität Hamburg
Tuffs, Richard J.
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Uchiyama, Yasunobu
Japan, Tokyo
Rikkyo University
Van Der Walt, D. J.
South Africa, Potchefstroom
North-west University
Van Eldik, Christopher
Germany, Erlangen
Friedrich-alexander-universität Erlangen-nürnberg
van Rensburg, Carlo
South Africa, Potchefstroom
North-west University
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
Brazil, Sao Paulo
Universidade de São Paulo
Vincent, P.
France, Paris
Laboratoire de Physique Nucléaire et de Hautes Energies
Vink, Jacco S.
Netherlands, Amsterdam
Universiteit Van Amsterdam
Voisin, Fabien J.
Australia, Adelaide
The University of Adelaide
Völk, Heinrich J.
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Wadiasingh, Zorawar
South Africa, Potchefstroom
North-west University
Wagner, Stefan J.
Germany, Heidelberg
Universität Heidelberg
White, Richard J.
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Wierzcholska, Alicja
Poland, Krakow
Polska Akademia Nauk Oddzial w Krakowie
Yang, Ruizhi
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Zaborov, Dmitry N.
France, Paris
In2p3 - Institut National de Physique Nucléaire et de Physique Des Particules
Zacharias, Michael
South Africa, Potchefstroom
North-west University
Zanin, Roberta
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Zdziarski, Andrzej A.
Poland, Warszawa
Polish Academy of Sciences
Zech, Andreas
France, Paris
Université Psl
Z̀ywucka, Natalia
Poland, Krakow
Uniwersytet Jagielloński
Statistics
Citations: 50
Authors: 197
Affiliations: 45
Identifiers
Doi:
10.1088/1475-7516/2018/11/037
ISSN:
14757516
Study Approach
Quantitative