Search for Dark Matter Annihilations towards the Inner Galactic Halo from 10 Years of Observations with H.E.S.S.
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.
Centre for Space Research, North-West University, Potchefstroom 2520, South Africa.
H
H
Abdallah
Universität Hamburg, Institut für Experimentalphysik, Luruper Chaussee 149, D 22761 Hamburg, Germany.
A
A
Abramowski
Max-Planck-Institut für Kernphysik, P.O. Box 103980, D 69029 Heidelberg, Germany.|Dublin Institute for Advanced Studies, 31 Fitzwilliam Place, Dublin 2, Ireland.|National Academy of Sciences of the Republic of Armenia, Marshall Baghramian Avenue, 24, 0019 Yerevan, Republic of Armenia.
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Aharonian
Max-Planck-Institut für Kernphysik, P.O. Box 103980, D 69029 Heidelberg, Germany.
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Ait Benkhali
National Academy of Sciences of the Republic of Armenia, Marshall Baghramian Avenue, 24, 0019 Yerevan, Republic of Armenia.|Yerevan Physics Institute, 2 Alikhanian Brothers Street, 375036 Yerevan, Armenia.
A G
AG
Akhperjanian
Institut für Physik, Humboldt-Universität zu Berlin, Newtonstrasse 15, D 12489 Berlin, Germany.
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Angüner
LUTH, Observatoire de Paris, PSL Research University, CNRS, Université Paris Diderot, 5 Place Jules Janssen, 92190 Meudon, France.
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M
Arrieta
Laboratoire d'Annecy-le-Vieux de Physique des Particules, Université de Savoie, CNRS/IN2P3, F-74941 Annecy-le-Vieux, France.
P
P
Aubert
University of Namibia, Department of Physics, Private Bag 13301, Windhoek, Namibia.
M
M
Backes
GRAPPA, Anton Pannekoek Institute for Astronomy, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands.
A
A
Balzer
Centre for Space Research, North-West University, Potchefstroom 2520, South Africa.
M
M
Barnard
Department of Physics and Electrical Engineering, Linnaeus University, 351 95 Växjö, Sweden.
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Becherini
Institut für Theoretische Physik, Lehrstuhl IV: Weltraum und Astrophysik, Ruhr-Universität Bochum, D 44780 Bochum, Germany.
J
J
Becker Tjus
GRAPPA, Anton Pannekoek Institute for Astronomy and Institute of High-Energy Physics, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands.
D
D
Berge
Institut für Astro- und Teilchenphysik, Leopold-Franzens-Universität Innsbruck, A-6020 Innsbruck, Austria.
S
S
Bernhard
Max-Planck-Institut für Kernphysik, P.O. Box 103980, D 69029 Heidelberg, Germany.|Institut für Physik, Humboldt-Universität zu Berlin, Newtonstrasse 15, D 12489 Berlin, Germany.
K
K
Bernlöhr
Institut für Physik, Humboldt-Universität zu Berlin, Newtonstrasse 15, D 12489 Berlin, Germany.
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E
Birsin
School of Chemistry & Physics, University of Adelaide, Adelaide 5005, Australia.
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R
Blackwell
Centre for Space Research, North-West University, Potchefstroom 2520, South Africa.
M
M
Böttcher
LUTH, Observatoire de Paris, PSL Research University, CNRS, Université Paris Diderot, 5 Place Jules Janssen, 92190 Meudon, France.
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C
Boisson
LPNHE, Université Pierre et Marie Curie Paris 6, Université Denis Diderot Paris 7, CNRS/IN2P3, 4 Place Jussieu, F-75252, Paris Cedex 5, France.
J
J
Bolmont
Institut für Astronomie und Astrophysik, Universität Tübingen, Sand 1, D 72076 Tübingen, Germany.
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Bordas
Laboratoire Univers et Particules de Montpellier, Université Montpellier 2, CNRS/IN2P3, CC 72, Place Eugène Bataillon, F-34095 Montpellier Cedex 5, France.
J
J
Bregeon
DSM/Irfu, CEA Saclay, F-91191 Gif-Sur-Yvette Cedex, France.
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F
Brun
DSM/Irfu, CEA Saclay, F-91191 Gif-Sur-Yvette Cedex, France.
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P
Brun
GRAPPA, Anton Pannekoek Institute for Astronomy, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands.
M
M
Bryan
Astronomical Observatory, The University of Warsaw, Aleje Ujazdowskie 4, 00-478 Warsaw, Poland.
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T
Bulik
Laboratoire Leprince-Ringuet, Ecole Polytechnique, CNRS/IN2P3, F-91128 Palaiseau, France.
M
M
Capasso
Aix Marseille Université, CNRS/IN2P3, CPPM UMR 7346, 13288 Marseille, France.
J
J
Carr
Max-Planck-Institut für Kernphysik, P.O. Box 103980, D 69029 Heidelberg, Germany.|Instytut Fizyki Jądrowej PAN, ul. Radzikowskiego 152, 31-342 Kraków, Poland.
S
S
Casanova
Max-Planck-Institut für Kernphysik, P.O. Box 103980, D 69029 Heidelberg, Germany.
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Chakraborty
LPNHE, Université Pierre et Marie Curie Paris 6, Université Denis Diderot Paris 7, CNRS/IN2P3, 4 Place Jussieu, F-75252, Paris Cedex 5, France.
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Chalme-Calvet
Laboratoire Univers et Particules de Montpellier, Université Montpellier 2, CNRS/IN2P3, CC 72, Place Eugène Bataillon, F-34095 Montpellier Cedex 5, France.
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RC
Chaves
School of Physics, University of the Witwatersrand, 1 Jan Smuts Avenue, Braamfontein, Johannesburg 2050, South Africa.
A
A
Chen
Laboratoire d'Annecy-le-Vieux de Physique des Particules, Université de Savoie, CNRS/IN2P3, F-74941 Annecy-le-Vieux, France.
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Chevalier
LPNHE, Université Pierre et Marie Curie Paris 6, Université Denis Diderot Paris 7, CNRS/IN2P3, 4 Place Jussieu, F-75252, Paris Cedex 5, France.
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Chrétien
School of Physics, University of the Witwatersrand, 1 Jan Smuts Avenue, Braamfontein, Johannesburg 2050, South Africa.
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S
Colafrancesco
Landessternwarte, Universität Heidelberg, Königstuhl, D 69117 Heidelberg, Germany.
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Cologna
Université Bordeaux 1, CNRS/IN2P3, Centre d'Études Nucléaires de Bordeaux Gradignan, 33175 Gradignan, France.
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B
Condon
Oskar Klein Centre, Department of Physics, Stockholm University, Albanova University Center, SE-10691 Stockholm, Sweden.|Wallenberg Academy Fellow.
J
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Conrad
LPNHE, Université Pierre et Marie Curie Paris 6, Université Denis Diderot Paris 7, CNRS/IN2P3, 4 Place Jussieu, F-75252, Paris Cedex 5, France.
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Couturier
Institut für Astronomie und Astrophysik, Universität Tübingen, Sand 1, D 72076 Tübingen, Germany.
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Cui
Centre for Space Research, North-West University, Potchefstroom 2520, South Africa.|University of Namibia, Department of Physics, Private Bag 13301, Windhoek, Namibia.
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ID
Davids
Laboratoire Leprince-Ringuet, Ecole Polytechnique, CNRS/IN2P3, F-91128 Palaiseau, France.
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Degrange
Max-Planck-Institut für Kernphysik, P.O. Box 103980, D 69029 Heidelberg, Germany.
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Deil
School of Chemistry & Physics, University of Adelaide, Adelaide 5005, Australia.
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deWilt
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Max-Planck-Institut für Kernphysik, P.O. Box 103980, D 69029 Heidelberg, Germany.
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Domainko
Max-Planck-Institut für Kernphysik, P.O. Box 103980, D 69029 Heidelberg, Germany.
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Donath
Dublin Institute for Advanced Studies, 31 Fitzwilliam Place, Dublin 2, Ireland.
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Drury
UJF-Grenoble 1 / CNRS-INSU, Institut de Planétologie et d'Astrophysique de Grenoble (IPAG) UMR 5274, Grenoble F-38041, France.
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Dubus
Department of Physics and Astronomy, The University of Leicester, University Road, Leicester LE1 7RH, United Kingdom.
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Dutson
Nicolaus Copernicus Astronomical Center, ul. Bartycka 18, 00-716 Warsaw, Poland.
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Dyks
Instytut Fizyki Jądrowej PAN, ul. Radzikowskiego 152, 31-342 Kraków, Poland.
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Dyrda
Max-Planck-Institut für Kernphysik, P.O. Box 103980, D 69029 Heidelberg, Germany.
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Edwards
Institut für Physik und Astronomie, Universität Potsdam, Karl-Liebknecht-Strasse 24/25, D 14476 Potsdam, Germany.
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K
Egberts
Max-Planck-Institut für Kernphysik, P.O. Box 103980, D 69029 Heidelberg, Germany.
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Eger
Aix Marseille Universié, CNRS/IN2P3, CPPM UMR 7346, 13288 Marseille, France.
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JP
Ernenwein
Aix Marseille Universié, CNRS/IN2P3, CPPM UMR 7346, 13288 Marseille, France.
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Eschbach
Oskar Klein Centre, Department of Physics, Stockholm University, Albanova University Center, SE-10691 Stockholm, Sweden.
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C
Farnier
Laboratoire Leprince-Ringuet, Ecole Polytechnique, CNRS/IN2P3, F-91128 Palaiseau, France.
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S
Fegan
Universität Hamburg, Institut für Experimentalphysik, Luruper Chaussee 149, D 22761 Hamburg, Germany.
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Laboratoire d'Annecy-le-Vieux de Physique des Particules, Université de Savoie, CNRS/IN2P3, F-74941 Annecy-le-Vieux, France.
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Fiasson
Laboratoire Leprince-Ringuet, Ecole Polytechnique, CNRS/IN2P3, F-91128 Palaiseau, France.
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Fontaine
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Funk
Institut für Physik und Astronomie, Universität Potsdam, Karl-Liebknecht-Strasse 24/25, D 14476 Potsdam, Germany.
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Füßling
APC, AstroParticule et Cosmologie, Université Paris Diderot, CNRS/IN2P3, CEA/Irfu, Observatoire de Paris, Sorbonne Paris Cité, 10, rue Alice Domon et Léonie Duquet, 75205 Paris Cedex 13, France.
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S
Gabici
Institut für Physik, Humboldt-Universität zu Berlin, Newtonstrasse 15, D 12489 Berlin, Germany.
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Gajdus
Laboratoire Univers et Particules de Montpellier, Université Montpellier 2, CNRS/IN2P3, CC 72, Place Eugène Bataillon, F-34095 Montpellier Cedex 5, France.
Y A
YA
Gallant
Centre for Space Research, North-West University, Potchefstroom 2520, South Africa.
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Garrigoux
DESY, D-15738 Zeuthen, Germany.
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Giavitto
Laboratoire Leprince-Ringuet, Ecole Polytechnique, CNRS/IN2P3, F-91128 Palaiseau, France.
B
B
Giebels
DSM/Irfu, CEA Saclay, F-91191 Gif-Sur-Yvette Cedex, France.
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JF
Glicenstein
Institut für Astronomie und Astrophysik, Universität Tübingen, Sand 1, D 72076 Tübingen, Germany.
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Gottschall
Obserwatorium Astronomiczne, Uniwersytet Jagielloński, ulica Orla 171, 30-244 Kraków, Poland.
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A
Goyal
Université Bordeaux 1, CNRS/IN2P3, Centre d'Études Nucléaires de Bordeaux Gradignan, 33175 Gradignan, France.
M-H
MH
Grondin
Astronomical Observatory, The University of Warsaw, Aleje Ujazdowskie 4, 00-478 Warsaw, Poland.
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M
Grudzińska
Institut für Astro- und Teilchenphysik, Leopold-Franzens-Universität Innsbruck, A-6020 Innsbruck, Austria.
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Hadasch
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Hahn
School of Chemistry & Physics, University of Adelaide, Adelaide 5005, Australia.
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Hawkes
Universität Hamburg, Institut für Experimentalphysik, Luruper Chaussee 149, D 22761 Hamburg, Germany.
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G
Heinzelmann
UJF-Grenoble 1 / CNRS-INSU, Institut de Planétologie et d'Astrophysique de Grenoble (IPAG) UMR 5274, Grenoble F-38041, France.
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G
Henri
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Hermann
LUTH, Observatoire de Paris, PSL Research University, CNRS, Université Paris Diderot, 5 Place Jules Janssen, 92190 Meudon, France.
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O
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A
Hillert
Max-Planck-Institut für Kernphysik, P.O. Box 103980, D 69029 Heidelberg, Germany.|Department of Physics and Astronomy, The University of Leicester, University Road, Leicester LE1 7RH, United Kingdom.
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Max-Planck-Institut für Kernphysik, P.O. Box 103980, D 69029 Heidelberg, Germany.
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Hofmann
DESY, D-15738 Zeuthen, Germany.
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Hoischen
Laboratoire Leprince-Ringuet, Ecole Polytechnique, CNRS/IN2P3, F-91128 Palaiseau, France.
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Holler
Universität Hamburg, Institut für Experimentalphysik, Luruper Chaussee 149, D 22761 Hamburg, Germany.
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D
Horns
Centre for Space Research, North-West University, Potchefstroom 2520, South Africa.
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LPNHE, Université Pierre et Marie Curie Paris 6, Université Denis Diderot Paris 7, CNRS/IN2P3, 4 Place Jussieu, F-75252, Paris Cedex 5, France.
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Jacholkowska
Obserwatorium Astronomiczne, Uniwersytet Jagielloński, ulica Orla 171, 30-244 Kraków, Poland.
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Nicolaus Copernicus Astronomical Center, ul. Bartycka 18, 00-716 Warsaw, Poland.
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Universität Erlangen-Nürnberg, Physikalisches Institut, Erwin-Rommel-Strasse 1, D 91058 Erlangen, Germany.
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Jankowsky
Landessternwarte, Universität Heidelberg, Königstuhl, D 69117 Heidelberg, Germany.
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Jankowsky
School of Physics, University of the Witwatersrand, 1 Jan Smuts Avenue, Braamfontein, Johannesburg 2050, South Africa.
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Jingo
Universität Erlangen-Nürnberg, Physikalisches Institut, Erwin-Rommel-Strasse 1, D 91058 Erlangen, Germany.
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Jogler
APC, AstroParticule et Cosmologie, Université Paris Diderot, CNRS/IN2P3, CEA/Irfu, Observatoire de Paris, Sorbonne Paris Cité, 10, rue Alice Domon et Léonie Duquet, 75205 Paris Cedex 13, France.
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Universität Erlangen-Nürnberg, Physikalisches Institut, Erwin-Rommel-Strasse 1, D 91058 Erlangen, Germany.
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Jung-Richardt
Universität Hamburg, Institut für Experimentalphysik, Luruper Chaussee 149, D 22761 Hamburg, Germany.
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MA
Kastendieck
Centre for Astronomy, Nicolaus Copernicus University, ulica Gagarina 11, 87-100 Toruń, Poland.
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Universität Erlangen-Nürnberg, Physikalisches Institut, Erwin-Rommel-Strasse 1, D 91058 Erlangen, Germany.
U
U
Katz
LPNHE, Université Pierre et Marie Curie Paris 6, Université Denis Diderot Paris 7, CNRS/IN2P3, 4 Place Jussieu, F-75252, Paris Cedex 5, France.
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Kerszberg
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LPNHE, Université Pierre et Marie Curie Paris 6, Université Denis Diderot Paris 7, CNRS/IN2P3, 4 Place Jussieu, F-75252, Paris Cedex 5, France.
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King
DESY, D-15738 Zeuthen, Germany.
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Institut für Astronomie und Astrophysik, Universität Tübingen, Sand 1, D 72076 Tübingen, Germany.
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Klochkov
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Institut für Astro- und Teilchenphysik, Leopold-Franzens-Universität Innsbruck, A-6020 Innsbruck, Austria.
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School of Physics, University of the Witwatersrand, 1 Jan Smuts Avenue, Braamfontein, Johannesburg 2050, South Africa.
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Komin
DSM/Irfu, CEA Saclay, F-91191 Gif-Sur-Yvette Cedex, France.
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Kosack
Institut für Theoretische Physik, Lehrstuhl IV: Weltraum und Astrophysik, Ruhr-Universität Bochum, D 44780 Bochum, Germany.
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Krakau
Universität Erlangen-Nürnberg, Physikalisches Institut, Erwin-Rommel-Strasse 1, D 91058 Erlangen, Germany.
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Kraus
Laboratoire d'Annecy-le-Vieux de Physique des Particules, Université de Savoie, CNRS/IN2P3, F-74941 Annecy-le-Vieux, France.
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Krayzel
Centre for Space Research, North-West University, Potchefstroom 2520, South Africa.
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PP
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Université Bordeaux 1, CNRS/IN2P3, Centre d'Études Nucléaires de Bordeaux Gradignan, 33175 Gradignan, France.
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Laboratoire d'Annecy-le-Vieux de Physique des Particules, Université de Savoie, CNRS/IN2P3, F-74941 Annecy-le-Vieux, France.
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Lamanna
School of Chemistry & Physics, University of Adelaide, Adelaide 5005, Australia.
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Lau
Laboratoire d'Annecy-le-Vieux de Physique des Particules, Université Savoie Mont-Blanc, CNRS/IN2P3, F-74941 Annecy-le-Vieux, France.
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JP
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LUTH, Observatoire de Paris, PSL Research University, CNRS, Université Paris Diderot, 5 Place Jules Janssen, 92190 Meudon, France.
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J
Lefaucheur
DSM/Irfu, CEA Saclay, F-91191 Gif-Sur-Yvette Cedex, France.
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APC, AstroParticule et Cosmologie, Université Paris Diderot, CNRS/IN2P3, CEA/Irfu, Observatoire de Paris, Sorbonne Paris Cité, 10, rue Alice Domon et Léonie Duquet, 75205 Paris Cedex 13, France.
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Université Bordeaux 1, CNRS/IN2P3, Centre d'Études Nucléaires de Bordeaux Gradignan, 33175 Gradignan, France.
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Lemoine-Goumard
LPNHE, Université Pierre et Marie Curie Paris 6, Université Denis Diderot Paris 7, CNRS/IN2P3, 4 Place Jussieu, F-75252, Paris Cedex 5, France.
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JP
Lenain
Institut für Physik und Astronomie, Universität Potsdam, Karl-Liebknecht-Strasse 24/25, D 14476 Potsdam, Germany.
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E
Leser
Institut für Physik, Humboldt-Universität zu Berlin, Newtonstrasse 15, D 12489 Berlin, Germany.
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Lohse
DSM/Irfu, CEA Saclay, F-91191 Gif-Sur-Yvette Cedex, France.
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Lorentz
Max-Planck-Institut für Kernphysik, P.O. Box 103980, D 69029 Heidelberg, Germany.
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Lui
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I
Lypova
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A
Marcowith
Laboratoire Leprince-Ringuet, Ecole Polytechnique, CNRS/IN2P3, F-91128 Palaiseau, France.
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C
Mariaud
Max-Planck-Institut für Kernphysik, P.O. Box 103980, D 69029 Heidelberg, Germany.
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Marx
Laboratoire d'Annecy-le-Vieux de Physique des Particules, Université de Savoie, CNRS/IN2P3, F-74941 Annecy-le-Vieux, France.
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G
Maurin
School of Chemistry & Physics, University of Adelaide, Adelaide 5005, Australia.
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Maxted
Institut für Physik und Astronomie, Universität Potsdam, Karl-Liebknecht-Strasse 24/25, D 14476 Potsdam, Germany.
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Mayer
Department of Physics, University of the Free State, P.O. Box 339, Bloemfontein 9300, South Africa.
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PJ
Meintjes
Institut für Theoretische Physik, Lehrstuhl IV: Weltraum und Astrophysik, Ruhr-Universität Bochum, D 44780 Bochum, Germany.
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U
Menzler
Oskar Klein Centre, Department of Physics, Stockholm University, Albanova University Center, SE-10691 Stockholm, Sweden.
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Meyer
Max-Planck-Institut für Kernphysik, P.O. Box 103980, D 69029 Heidelberg, Germany.
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AM
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Nicolaus Copernicus Astronomical Center, ul. Bartycka 18, 00-716 Warsaw, Poland.
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Moderski
Landessternwarte, Universität Heidelberg, Königstuhl, D 69117 Heidelberg, Germany.
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M
Mohamed
Oskar Klein Centre, Department of Physics, Stockholm University, Albanova University Center, SE-10691 Stockholm, Sweden.
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K
Morå
DSM/Irfu, CEA Saclay, F-91191 Gif-Sur-Yvette Cedex, France.
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E
Moulin
Institut für Physik, Humboldt-Universität zu Berlin, Newtonstrasse 15, D 12489 Berlin, Germany.
T
T
Murach
Laboratoire Leprince-Ringuet, Ecole Polytechnique, CNRS/IN2P3, F-91128 Palaiseau, France.
M
M
de Naurois
GRAPPA, Anton Pannekoek Institute for Astronomy and Institute of High-Energy Physics, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands.
F
F
Niederwanger
Instytut Fizyki Jądrowej PAN, ul. Radzikowskiego 152, 31-342 Kraków, Poland.
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J
Niemiec
Institut für Physik, Humboldt-Universität zu Berlin, Newtonstrasse 15, D 12489 Berlin, Germany.
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Oakes
Max-Planck-Institut für Kernphysik, P.O. Box 103980, D 69029 Heidelberg, Germany.
H
H
Odaka
DESY, D-15738 Zeuthen, Germany.
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S
Ohm
Institut für Astro- und Teilchenphysik, Leopold-Franzens-Universität Innsbruck, A-6020 Innsbruck, Austria.
S
S
Öttl
Obserwatorium Astronomiczne, Uniwersytet Jagielloński, ulica Orla 171, 30-244 Kraków, Poland.
M
M
Ostrowski
Institut für Physik, Humboldt-Universität zu Berlin, Newtonstrasse 15, D 12489 Berlin, Germany.
I
I
Oya
Laboratoire Univers et Particules de Montpellier, Université Montpellier, CNRS/IN2P3, CC 72, Place Eugène Bataillon, F-34095 Montpellier Cedex 5, France.
M
M
Padovani
Max-Planck-Institut für Kernphysik, P.O. Box 103980, D 69029 Heidelberg, Germany.
M
M
Panter
Max-Planck-Institut für Kernphysik, P.O. Box 103980, D 69029 Heidelberg, Germany.
R D
RD
Parsons
Institut für Physik, Humboldt-Universität zu Berlin, Newtonstrasse 15, D 12489 Berlin, Germany.
M
M
Paz Arribas
Centre for Space Research, North-West University, Potchefstroom 2520, South Africa.
N W
NW
Pekeur
UJF-Grenoble 1 / CNRS-INSU, Institut de Planétologie et d'Astrophysique de Grenoble (IPAG) UMR 5274, Grenoble F-38041, France.
G
G
Pelletier
UJF-Grenoble 1 / CNRS-INSU, Institut de Planétologie et d'Astrophysique de Grenoble (IPAG) UMR 5274, Grenoble F-38041, France.
P-O
PO
Petrucci
DSM/Irfu, CEA Saclay, F-91191 Gif-Sur-Yvette Cedex, France.
B
B
Peyaud
APC, AstroParticule et Cosmologie, Université Paris Diderot, CNRS/IN2P3, CEA/Irfu, Observatoire de Paris, Sorbonne Paris Cité, 10, rue Alice Domon et Léonie Duquet, 75205 Paris Cedex 13, France.
S
S
Pita
Max-Planck-Institut für Kernphysik, P.O. Box 103980, D 69029 Heidelberg, Germany.
H
H
Poon
Department of Physics and Electrical Engineering, Linnaeus University, 351 95 Växjö, Sweden.
D
D
Prokhorov
Department of Physics and Electrical Engineering, Linnaeus University, 351 95 Växjö, Sweden.
H
H
Prokoph
Institut für Astronomie und Astrophysik, Universität Tübingen, Sand 1, D 72076 Tübingen, Germany.
G
G
Pühlhofer
APC, AstroParticule et Cosmologie, Université Paris Diderot, CNRS/IN2P3, CEA/Irfu, Observatoire de Paris, Sorbonne Paris Cité, 10, rue Alice Domon et Léonie Duquet, 75205 Paris Cedex 13, France.
M
M
Punch
Landessternwarte, Universität Heidelberg, Königstuhl, D 69117 Heidelberg, Germany.
A
A
Quirrenbach
Universität Erlangen-Nürnberg, Physikalisches Institut, Erwin-Rommel-Strasse 1, D 91058 Erlangen, Germany.
S
S
Raab
Institut für Astro- und Teilchenphysik, Leopold-Franzens-Universität Innsbruck, A-6020 Innsbruck, Austria.
A
A
Reimer
Institut für Astro- und Teilchenphysik, Leopold-Franzens-Universität Innsbruck, A-6020 Innsbruck, Austria.
O
O
Reimer
Laboratoire Univers et Particules de Montpellier, Université Montpellier 2, CNRS/IN2P3, CC 72, Place Eugène Bataillon, F-34095 Montpellier Cedex 5, France.
M
M
Renaud
Max-Planck-Institut für Kernphysik, P.O. Box 103980, D 69029 Heidelberg, Germany.
R
R
de Los Reyes
Max-Planck-Institut für Kernphysik, P.O. Box 103980, D 69029 Heidelberg, Germany.
F
F
Rieger
Dublin Institute for Advanced Studies, 31 Fitzwilliam Place, Dublin 2, Ireland.
C
C
Romoli
Laboratoire d'Annecy-le-Vieux de Physique des Particules, Université de Savoie, CNRS/IN2P3, F-74941 Annecy-le-Vieux, France.
S
S
Rosier-Lees
School of Chemistry & Physics, University of Adelaide, Adelaide 5005, Australia.
G
G
Rowell
Nicolaus Copernicus Astronomical Center, ul. Bartycka 18, 00-716 Warsaw, Poland.
B
B
Rudak
LUTH, Observatoire de Paris, PSL Research University, CNRS, Université Paris Diderot, 5 Place Jules Janssen, 92190 Meudon, France.
C B
CB
Rulten
National Academy of Sciences of the Republic of Armenia, Marshall Baghramian Avenue, 24, 0019 Yerevan, Republic of Armenia.|Yerevan Physics Institute, 2 Alikhanian Brothers Street, 375036 Yerevan, Armenia.
V
V
Sahakian
GRAPPA, Institute of High-Energy Physics, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands.
D
D
Salek
Laboratoire d'Annecy-le-Vieux de Physique des Particules, Université de Savoie, CNRS/IN2P3, F-74941 Annecy-le-Vieux, France.
D A
DA
Sanchez
Institut für Astronomie und Astrophysik, Universität Tübingen, Sand 1, D 72076 Tübingen, Germany.
A
A
Santangelo
Institut für Astronomie und Astrophysik, Universität Tübingen, Sand 1, D 72076 Tübingen, Germany.
M
M
Sasaki
Institut für Theoretische Physik, Lehrstuhl IV: Weltraum und Astrophysik, Ruhr-Universität Bochum, D 44780 Bochum, Germany.
R
R
Schlickeiser
DSM/Irfu, CEA Saclay, F-91191 Gif-Sur-Yvette Cedex, France.
F
F
Schüssler
DESY, D-15738 Zeuthen, Germany.
A
A
Schulz
Institut für Physik, Humboldt-Universität zu Berlin, Newtonstrasse 15, D 12489 Berlin, Germany.
U
U
Schwanke
Landessternwarte, Universität Heidelberg, Königstuhl, D 69117 Heidelberg, Germany.
S
S
Schwemmer
Centre for Space Research, North-West University, Potchefstroom 2520, South Africa.
A S
AS
Seyffert
School of Physics, University of the Witwatersrand, 1 Jan Smuts Avenue, Braamfontein, Johannesburg 2050, South Africa.
N
N
Shafi
GRAPPA, Anton Pannekoek Institute for Astronomy and Institute of High-Energy Physics, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands.
R
R
Simoni
LUTH, Observatoire de Paris, PSL Research University, CNRS, Université Paris Diderot, 5 Place Jules Janssen, 92190 Meudon, France.
H
H
Sol
Centre for Space Research, North-West University, Potchefstroom 2520, South Africa.
F
F
Spanier
Oskar Klein Centre, Department of Physics, Stockholm University, Albanova University Center, SE-10691 Stockholm, Sweden.
G
G
Spengler
Universität Hamburg, Institut für Experimentalphysik, Luruper Chaussee 149, D 22761 Hamburg, Germany.
F
F
Spieß
Obserwatorium Astronomiczne, Uniwersytet Jagielloński, ulica Orla 171, 30-244 Kraków, Poland.
L
L
Stawarz
University of Namibia, Department of Physics, Private Bag 13301, Windhoek, Namibia.
R
R
Steenkamp
Institut für Physik und Astronomie, Universität Potsdam, Karl-Liebknecht-Strasse 24/25, D 14476 Potsdam, Germany.|DESY, D-15738 Zeuthen, Germany.
C
C
Stegmann
Universität Erlangen-Nürnberg, Physikalisches Institut, Erwin-Rommel-Strasse 1, D 91058 Erlangen, Germany.
F
F
Stinzing
DESY, D-15738 Zeuthen, Germany.
K
K
Stycz
Centre for Space Physics, North-West University, Potchefstroom 2520, South Africa.
I
I
Sushch
LPNHE, Université Pierre et Marie Curie Paris 6, Université Denis Diderot Paris 7, CNRS/IN2P3, 4 Place Jussieu, F-75252, Paris Cedex 5, France.
J-P
JP
Tavernet
APC, AstroParticule et Cosmologie, Université Paris Diderot, CNRS/IN2P3, CEA/Irfu, Observatoire de Paris, Sorbonne Paris Cité, 10, rue Alice Domon et Léonie Duquet, 75205 Paris Cedex 13, France.
T
T
Tavernier
Dublin Institute for Advanced Studies, 31 Fitzwilliam Place, Dublin 2, Ireland.
A M
AM
Taylor
APC, AstroParticule et Cosmologie, Université Paris Diderot, CNRS/IN2P3, CEA/Irfu, Observatoire de Paris, Sorbonne Paris Cité, 10, rue Alice Domon et Léonie Duquet, 75205 Paris Cedex 13, France.
R
R
Terrier
Universität Hamburg, Institut für Experimentalphysik, Luruper Chaussee 149, D 22761 Hamburg, Germany.
M
M
Tluczykont
Laboratoire d'Annecy-le-Vieux de Physique des Particules, Université de Savoie, CNRS/IN2P3, F-74941 Annecy-le-Vieux, France.
C
C
Trichard
Max-Planck-Institut für Kernphysik, P.O. Box 103980, D 69029 Heidelberg, Germany.
R
R
Tuffs
Centre for Space Research, North-West University, Potchefstroom 2520, South Africa.
J
J
van der Walt
Universität Erlangen-Nürnberg, Physikalisches Institut, Erwin-Rommel-Strasse 1, D 91058 Erlangen, Germany.
C
C
van Eldik
Department of Physics, University of the Free State, P.O. Box 339, Bloemfontein 9300, South Africa.
B
B
van Soelen
Laboratoire Univers et Particules de Montpellier, Université Montpellier 2, CNRS/IN2P3, CC 72, Place Eugène Bataillon, F-34095 Montpellier Cedex 5, France.
G
G
Vasileiadis
Universität Erlangen-Nürnberg, Physikalisches Institut, Erwin-Rommel-Strasse 1, D 91058 Erlangen, Germany.
J
J
Veh
Centre for Space Physics, North-West University, Potchefstroom 2520, South Africa.
C
C
Venter
Max-Planck-Institut für Kernphysik, P.O. Box 103980, D 69029 Heidelberg, Germany.
A
A
Viana
LPNHE, Université Pierre et Marie Curie Paris 6, Université Denis Diderot Paris 7, CNRS/IN2P3, 4 Place Jussieu, F-75252, Paris Cedex 5, France.
P
P
Vincent
GRAPPA, Anton Pannekoek Institute for Astronomy, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands.
J
J
Vink
School of Chemistry & Physics, University of Adelaide, Adelaide 5005, Australia.
F
F
Voisin
Max-Planck-Institut für Kernphysik, P.O. Box 103980, D 69029 Heidelberg, Germany.
H J
HJ
Völk
Laboratoire d'Annecy-le-Vieux de Physique des Particules, Université de Savoie, CNRS/IN2P3, F-74941 Annecy-le-Vieux, France.
T
T
Vuillaume
Centre for Space Physics, North-West University, Potchefstroom 2520, South Africa.
Z
Z
Wadiasingh
Landessternwarte, Universität Heidelberg, Königstuhl, D 69117 Heidelberg, Germany.
S J
SJ
Wagner
Institut für Physik, Humboldt-Universität zu Berlin, Newtonstrasse 15, D 12489 Berlin, Germany.
P
P
Wagner
Oskar Klein Centre, Department of Physics, Stockholm University, Albanova University Center, SE-10691 Stockholm, Sweden.
R M
RM
Wagner
Max-Planck-Institut für Kernphysik, P.O. Box 103980, D 69029 Heidelberg, Germany.|Department of Physics and Astronomy, The University of Leicester, University Road, Leicester LE1 7RH, United Kingdom.
R
R
White
Obserwatorium Astronomiczne, Uniwersytet Jagielloński, ulica Orla 171, 30-244 Kraków, Poland.
A
A
Wierzcholska
Universität Erlangen-Nürnberg, Physikalisches Institut, Erwin-Rommel-Strasse 1, D 91058 Erlangen, Germany.
P
P
Willmann
Universität Erlangen-Nürnberg, Physikalisches Institut, Erwin-Rommel-Strasse 1, D 91058 Erlangen, Germany.
A
A
Wörnlein
DSM/Irfu, CEA Saclay, F-91191 Gif-Sur-Yvette Cedex, France.
D
D
Wouters
Max-Planck-Institut für Kernphysik, P.O. Box 103980, D 69029 Heidelberg, Germany.
R
R
Yang
Max-Planck-Institut für Kernphysik, P.O. Box 103980, D 69029 Heidelberg, Germany.|Department of Physics and Astronomy, The University of Leicester, University Road, Leicester LE1 7RH, United Kingdom.
V
V
Zabalza
Laboratoire Leprince-Ringuet, Ecole Polytechnique, CNRS/IN2P3, F-91128 Palaiseau, France.
D
D
Zaborov
Landessternwarte, Universität Heidelberg, Königstuhl, D 69117 Heidelberg, Germany.
M
M
Zacharias
Nicolaus Copernicus Astronomical Center, ul. Bartycka 18, 00-716 Warsaw, Poland.
A A
AA
Zdziarski
LUTH, Observatoire de Paris, PSL Research University, CNRS, Université Paris Diderot, 5 Place Jules Janssen, 92190 Meudon, France.
A
A
Zech
Laboratoire Leprince-Ringuet, Ecole Polytechnique, CNRS/IN2P3, F-91128 Palaiseau, France.
F
F
Zefi
Universität Erlangen-Nürnberg, Physikalisches Institut, Erwin-Rommel-Strasse 1, D 91058 Erlangen, Germany.
A
A
Ziegler
Obserwatorium Astronomiczne, Uniwersytet Jagielloński, ulica Orla 171, 30-244 Kraków, Poland.
N
N
Żywucka