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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
earth and planetary sciences
H.E.S.S. observations of the globular clusters NGC 6388 and M15 and search for a dark matter signal
Astrophysical Journal, Volume 735, No. 1, Article 12, Year 2011
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Description
Observations of the globular clusters (GCs) NGC 6388 and M15 were carried out by the High Energy Stereoscopic System array of Cherenkov telescopes for a live time of 27.2 and 15.2 hr, respectively. No gamma-ray signal is found at the nominal target position of NGC 6388 and M15. In the primordial formation scenario, GCs are formed in a dark matter (DM) halo and DM could still be present in the baryon-dominated environment of GCs. This opens the possibility of observing a DM self-annihilation signal. The DM content of the GCs NGC 6388 and M15 is modeled taking into account the astrophysical processes that can be expected to influence the DM distribution during the evolution of the GC: the adiabatic contraction of DM by baryons, the adiabatic growth of a black hole in the DM halo, and the kinetic heating of DM by stars. Ninety-five percent confidence level exclusion limits on the DM particle velocity-weighted annihilation cross section are derived for these DM halos. In the TeV range, the limits on the velocity-weighted annihilation cross section are derived at the 10-25 cm3 s-1 level and a few 10-24 cm3 s-1 for NGC 6388 and M15, respectively. © 2011. The American Astronomical Society. All rights reserved..
Authors & Co-Authors
Abramowski, Attila
Germany, Hamburg
Universität Hamburg
Acero, Fabio
France, Montpellier
Laboratoire Univers et Particules de Montpellier
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
Akhperjanian, Ashot G.
Armenia, Yerevan
National Academy of Sciences of the Republic of Armenia
Armenia, Yerevan
Yerevan Physics Institute
Anton, Gisela K.Stycz
Germany, Erlangen
Friedrich-alexander-universität Erlangen-nürnberg
Balzer, Arnim
Germany, Erlangen
Friedrich-alexander-universität Erlangen-nürnberg
Barnacka, Anna
Poland, Warsaw
Nicolaus Copernicus Astronomical Center of the Polish Academy of Sciences
France, Gif-sur-yvette
Institut de Recherche Sur Les Lois Fondamentales de L'univers
Barres De Almeida, Ulisses
United Kingdom, Durham
Durham University
Brazil, Brasilia
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
Bazer-Bachi, A. R.
France, Paris
Cnrs Centre National de la Recherche Scientifique
Becherini, Yvonne
France, Paris
Apc - Astroparticule et Cosmologie
France, Palaiseau
École Polytechnique
Becker, Julia K.
Germany, Bochum
Ruhr-universitat Bochum
Behera, Bagmeet
Germany, Heidelberg
Landessternwarte Heidelberg
Bernlöhr, Konrad
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Germany, Berlin
Humboldt-universität zu Berlin
Bochow, Anne
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Boisson, Catherine
France, Meudon
Luth - Laboratoire de L'univers et de Ses Theories
Bolmont, Julien
France, Paris
Laboratoire de Physique Nucléaire et de Hautes Energies
Bordas, Pol
Germany, Tubingen
Eberhard Karls Universität Tübingen
Borrel, V.
France, Paris
Cnrs Centre National de la Recherche Scientifique
Brucker, Julia
Germany, Erlangen
Friedrich-alexander-universität Erlangen-nürnberg
Brun, François
France, Palaiseau
École Polytechnique
Brun, Pierre
France, Gif-sur-yvette
Institut de Recherche Sur Les Lois Fondamentales de L'univers
Bulk, Tomasz
Poland, Warsaw
University of Warsaw
Büsching, Ingo
South Africa, Potchefstroom
North-west University
Carrigan, Svenja
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Casanova, Sabrina
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Germany, Bochum
Ruhr-universitat Bochum
Cerruti, Matteo
France, Meudon
Luth - Laboratoire de L'univers et de Ses Theories
Chadwick, Paula M.
United Kingdom, Durham
Durham University
Charbonnier, Ald́ee
France, Paris
Laboratoire de Physique Nucléaire et de Hautes Energies
Chaves, Ryan C.G.
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Cheesebrough, A.
United Kingdom, Durham
Durham University
Chounet, L. M.
France, Palaiseau
École Polytechnique
Clapson, André Claude
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Coignet, G. G.
France, Paris
In2p3 - Institut National de Physique Nucléaire et de Physique Des Particules
Conrad, Jan
Sweden, Stockholm
The Royal Institute of Technology Kth
Dalton, Matthew L.
Germany, Berlin
Humboldt-universität zu Berlin
Daniel, Michael K.
United Kingdom, Durham
Durham University
Davids, Isak Delberth
Namibia, Windhoek
University of Namibia
Degrange, Bernard
France, Palaiseau
École Polytechnique
Deil, Christoph
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Dickinson, Hugh J.
Sweden, Stockholm
The Royal Institute of Technology Kth
Djannati-Ata, A.
France, Paris
Apc - Astroparticule et Cosmologie
Domainko, Wilfried F.
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Drury, Luke O'C
Ireland, Dublin
Institiúid Ard-lénn Bhaile Átha Cliath
Dubois, Florent
France, Paris
In2p3 - Institut National de Physique Nucléaire et de Physique Des Particules
Dubus, Guillaume
France, Paris
Cnrs Centre National de la Recherche Scientifique
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
Austria, Innsbruck
Medizinische Universitat Innsbruck
Eger, Peter A.
Germany, Erlangen
Friedrich-alexander-universität Erlangen-nürnberg
Espigat, P.
France, Paris
Apc - Astroparticule et Cosmologie
Fallon, Lisa
Ireland, Dublin
Institiúid Ard-lénn Bhaile Átha Cliath
Farnier, Christian
France, Montpellier
Laboratoire Univers et Particules de Montpellier
Fegan, Stephen J.
France, Palaiseau
École Polytechnique
Feinstein, Fabrice
France, Montpellier
Laboratoire Univers et Particules de Montpellier
Fernandes, Milton Virgílio
Germany, Hamburg
Universität Hamburg
Fiasson, Armand
France, Paris
In2p3 - Institut National de Physique Nucléaire et de Physique Des Particules
Fontaine, Gérard
France, Palaiseau
École Polytechnique
Förster, Andreas
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Füling, Matthias
Germany, Berlin
Humboldt-universität zu Berlin
Gallant, Yves A.
France, Montpellier
Laboratoire Univers et Particules de Montpellier
Gast, Henning
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Gérard, Lucie
France, Paris
Apc - Astroparticule et Cosmologie
Gerbig, Dennis
Germany, Bochum
Ruhr-universitat Bochum
Giebels, Berrie
France, Palaiseau
École Polytechnique
Glicenstein, Jean François
France, Gif-sur-yvette
Institut de Recherche Sur Les Lois Fondamentales de L'univers
Glück, B.
Germany, Erlangen
Friedrich-alexander-universität Erlangen-nürnberg
Goret, Philippe
France, Gif-sur-yvette
Institut de Recherche Sur Les Lois Fondamentales de L'univers
Göring, D.
Germany, Erlangen
Friedrich-alexander-universität Erlangen-nürnberg
Häffner, Stephanie
Germany, Erlangen
Friedrich-alexander-universität Erlangen-nürnberg
Hague, J. D.
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Hampf, Daniel
Germany, Hamburg
Universität Hamburg
Hauser, Marcus
Germany, Heidelberg
Landessternwarte Heidelberg
Heinz, Sebastian
Germany, Erlangen
Friedrich-alexander-universität Erlangen-nürnberg
Heinzelmann, Götz
Germany, Hamburg
Universität Hamburg
Henri, Gilles
France, Paris
Cnrs Centre National de la Recherche Scientifique
Hermann, German
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Hinton, James A.J.A.
United Kingdom, Leicester
University of Leicester
Hoffmann, Agnes I.D.
Germany, Tubingen
Eberhard Karls Universität Tübingen
Hofmann, Werner
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Hofverberg, Petter
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Holler, Markus
Germany, Erlangen
Friedrich-alexander-universität Erlangen-nürnberg
Horns, Dieter
Germany, Hamburg
Universität Hamburg
Jachołkowska, Agnieszka
France, Paris
Laboratoire de Physique Nucléaire et de Hautes Energies
de Jager, Ocker C.
South Africa, Potchefstroom
North-west University
Jahn, C.
Germany, Erlangen
Friedrich-alexander-universität Erlangen-nürnberg
Jamrozy, Marek
Poland, Krakow
Uniwersytet Jagielloński
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
Landessternwarte Heidelberg
Keogh, D.
United Kingdom, Durham
Durham University
Khangulyan, D.
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Khélifi, Bruno
France, Palaiseau
École Polytechnique
Klochkov, Dmitry K.
Germany, Tubingen
Eberhard Karls Universität Tübingen
Klužniak, Wlodzimierz
Poland, Warsaw
Nicolaus Copernicus Astronomical Center of the Polish Academy of Sciences
Kneiske, Tanja M.
Germany, Hamburg
Universität Hamburg
Komin, Nukri
France, Paris
In2p3 - Institut National de Physique Nucléaire et de Physique Des Particules
Kosack, Karl
France, Gif-sur-yvette
Institut de Recherche Sur Les Lois Fondamentales de L'univers
Kossakowski, Roman
France, Paris
In2p3 - Institut National de Physique Nucléaire et de Physique Des Particules
Statistics
Citations: 100
Authors: 100
Affiliations: 30
Identifiers
Doi:
10.1088/0004-637X/735/1/12
ISSN:
0004637X
e-ISSN:
15384357