Search for photon line-like signatures from Dark Matter annihilations with H.E.S.S

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

doi:10.1103/PhysRevLett.110.041301

Journal articles

Search for photon line-like signatures from Dark Matter annihilations with H.E.S.S

A. Abramowski ¹ Fabio Acero ² F. Aharonian ^{3, 4, 5} A. G. Akhperjanian ^{5, 6} G. Anton ⁷ S. Balenderan ⁸ Agnès Balzer ^{9, 10} A. Barnacka ¹¹ Y. Becherini ^{12, 13} J. Becker Tjus ¹⁴ K. Bernlöhr ^{15, 3} E. Birsin ¹⁵ J. Biteau ¹² A. Bochow ³ C. Boisson ¹⁶ J. Bolmont ¹⁷ P. Bordas ¹⁸ J. Brucker ⁷ F. Brun ¹² P. Brun ¹⁹ T. Bulik ²⁰ S. Carrigan ³ S. Casanova ²¹ M. Cerruti ¹⁶ P. M. Chadwick ⁸ R. C. G. Chaves ²² A. Cheesebrough ⁸ S. Colafrancesco ²³ G. Cologna ²⁴ J. Conrad ²⁵ C. Couturier ²⁶ M. Dalton ^{15, 27} M. K. Daniel ⁸ I. D. Davids ²⁸ B. Degrange ¹² C. Deil ³ P. Dewilt ²⁹ H. J. Dickinson ²⁵ A. Djannati-Ataï ³⁰ W. Domainko ³ L. O'C. Drury ⁴ G. Dubus ³¹ K. Dutson ³² J. Dyks ²⁰ M. Dyrda ³³ K. Egberts ³⁴ P. Eger ⁷ P. Espigat ¹³ L. Fallon ⁴ C. Farnier ²⁵ S. Fegan ¹² F. Feinstein ² M. V. Fernandes ¹ D. Fernandez ² A. Fiasson ³⁵ G. Fontaine ¹² A. Förster ³ M. Füßling ¹⁵ M. Gajdus ¹⁵ Y. A. Gallant ² T. Garrigoux ²⁶ H. Gast ³ B. Giebels ¹² J. F. Glicenstein ¹⁹ B. Glück ⁷ D. Göring ⁷ M. -H. Grondin ^{3, 36} S. Häffner ⁷ J. D. Hague ³⁷ J. Hahn ³ D. Hampf ¹ J. Harris ⁸ S. Heinz ⁷ G. Heinzelmann ¹ G. Henri ³¹ G. Hermann ³ A. Hillert ³ J. A. Hinton ³² W. Hofmann ³ P. Hofverberg ³ M. Holler ¹⁰ D. Horns ¹ A. Jacholkowska ¹⁷ C. Jahn ⁷ M. Jamrozy ³⁸ I. Jung ⁷ M. A. Kastendieck ¹ K. Katarzyński ³⁹ U. Katz ⁴⁰ S. Kaufmann ²⁴ B. Khélifi ¹² S. Klepser ⁹ D. Klochkov ⁴¹ W. Kluźniak ³⁹ T. Kneiske ¹ Nu. Komin ³⁵ K. Kosack ¹⁹ R. Kossakowski ³⁵ F. Krayzel ³⁵ P. P. Krüger ^{3, 42} H. Laffon ¹² G. Lamanna ³⁵ J. Lefaucheur ¹³ M. Lemoine-Goumard ²⁷ J. -P. Lenain ^{26, 13} D. Lennarz ³ T. Lohse ¹⁵ A. Lopatin ⁴⁰ C. -C. Lu ³ V. Marandon ³ A. Marcowith ² J. Masbou ³⁵ G. Maurin ³⁵ N. Maxted ²⁹ M. Mayer ¹⁰ T. J. L. Mccomb ⁸ M. C. Medina ¹⁹ J. Méhault ² U. Menzler ⁴³ R. Moderski ⁴⁴ M. Mohamed ²⁴ Emmanuel Moulin ¹⁹ C. L. Naumann ¹⁷ M. Naumann-Godo ¹⁹ M. de Naurois ¹² D. Nedbal ⁴⁵ D. Nekrassov ³ N. Nguyen ¹ J. Niemiec ³³ S. J. Nolan ⁸ S. Ohm ^{3, 32} E. de Oña Wilhelmi ³ B. Opitz ¹ M. Ostrowski ³⁸ I. Oya ¹⁵ M. Panter ³ R. D. Parsons ³ M. Paz Arribas ¹⁵ N. W. Pekeur ²¹ G. Pelletier ³¹ J. Perez ³⁴ P. -O. Petrucci ³¹ B. Peyaud ¹⁹ S. Pita ¹³ G. Pühlhofer ⁴¹ M. Punch ¹³ A. Quirrenbach ²⁴ M. Raue ¹ A. Reimer ³⁴ O. Reimer ³⁴ M. Renaud ² R. de Los Reyes ³ F. Rieger ³ J. Ripken ²⁵ L. Rob ⁴⁵ S. Rosier-Lees ³⁵ G. Rowell ²⁹ B. Rudak ²⁰ C. B. Rulten ⁸ V. Sahakian ⁶ D. A. Sanchez ³ A. Santangelo ⁴¹ R. Schlickeiser ¹⁴ A. Schulz ⁹ U. Schwanke ¹⁵ S. Schwarzburg ⁴¹ S. Schwemmer ²⁴ F. Sheidaei ¹³ J. L. Skilton ³ H. Sol ¹⁶ G. Spengler ¹⁵ Ł. Stawarz ³⁸ R. Steenkamp ²⁸ C. Stegmann ^{9, 10} F. Stinzing ⁷ K. Stycz ⁹ I. Sushch ¹⁵ A. Szostek ³⁸ J. -P. Tavernet ¹⁷ R. Terrier ¹³ M. Tluczykont ¹ C. Trichard ³⁵ K. Valerius ⁴⁰ C. van Eldik ^{3, 40} G. Vasileiadis ² C. Venter ²¹ A. Viana ¹⁹ P. Vincent ¹⁷ H. J. Völk ³ F. Volpe ³ S. Vorobiov ² M. Vorster ²¹ S. J. Wagner ³⁶ M. Ward ⁸ R. White ⁴⁶ A. Wierzcholska ³⁸ D. Wouters ¹⁹ M. Zacharias ¹⁴ A. Zajczyk ^{2, 20} A. A. Zdziarski ²⁰ A. Zech ¹⁶ H. -S. Zechlin ¹

1 Institut für Experimentalphysik [Hamburg]

2 LUPM - Laboratoire Univers et Particules de Montpellier

3 MPIK - Max-Planck-Institut für Kernphysik

4 DIAS - Dublin Institute for Advanced Studies

5 NAS RA - National Academy of Sciences of the Republic of Armenia [Yerevan]

6 Yerevan Physics Institute

7 FAU - Friedrich-Alexander Universität Erlangen-Nürnberg

8 Department of Physics [Durham University]

9 DESY - Deutsches Elektronen-Synchrotron [Zeuthen]

10 Universität Potsdam

11 Nicolaus Copernicus University [Toruń]

12 LLR - Laboratoire Leprince-Ringuet

13 APC (UMR_7164) - AstroParticule et Cosmologie

14 Astronomisches Institut der Ruhr-Universität Bochum

15 Humboldt-Universität zu Berlin

16 LUTH (UMR_8102) - Laboratoire Univers et Théories

17 LPNHE - Laboratoire de Physique Nucléaire et de Hautes Énergies

18 IAAT - Institut für Astronomie und Astrophysik [Tübingen]

19 CEA - CEA- Saclay

20 Astronomical Observatory [Warsaw]

21 Unit for Space Physics, North-West University, South-Africa

22 APC - Cosmologie

APC (UMR_7164) - AstroParticule et Cosmologie

23 WITS - University of the Witwatersrand [Johannesburg]

24 ZAH - Zentrum für Astronomie der Universität Heidelberg

25 Oskar Klein Centre [Stockholm]

26 LPNHE (UMR_7585) - Laboratoire de Physique Nucléaire et de Hautes Énergies

27 CENBG - Centre d'Etudes Nucléaires de Bordeaux Gradignan

28 NUST - Namibia University of Science and Technology

29 University of South Australia [Adelaide]

30 APC - AHE - APC - Astrophysique des Hautes Energies

APC (UMR_7164) - AstroParticule et Cosmologie, Dipartimento di Astronomia, Universita degli Studi di Bologna

31 IPAG - Institut de Planétologie et d'Astrophysique de Grenoble

32 Department of Physics and Astronomy [Leicester]

33 IFJ - Instytut Fizyki Jądrowej PAN

34 Leopold Franzens Universität Innsbruck - University of Innsbruck

35 LAPP - Laboratoire d'Annecy de Physique des Particules

36 Universität Heidelberg [Heidelberg]

37 MPIA - Max Planck Institute for Astronomy

38 Uniwersytet Jagiellonski

39 TCfA - Torun Centre for Astronomy

40 Physikalisches Institut [Erlangen]

41 Eberhard Karls Universität Tübingen

42 Unit for Space Physics, North-West University

43 ITP4 - Institut für Theoretische Physik IV [Bochum]

44 Space Research Centre [Torun]

45 Astronomical Institute of Charles University

46 Space Research Centre [Leicester]

Abstract : Gamma-ray line signatures can be expected in the very-high-energy (VHE; E_\gamma > 100 GeV) domain due to self-annihilation or decay of dark matter (DM) particles in space. Such a signal would be readily distinguishable from astrophysical \gamma-ray sources that in most cases produce continuous spectra which span over several orders of magnitude in energy. Using data collected with the H.E.S.S. \gamma-ray instrument, upper limits on line-like emission are obtained in the energy range between ~500 GeV and ~25 TeV for the central part of the Milky Way halo and for extragalactic observations, complementing recent limits obtained with the Fermi-LAT instrument at lower energies. No statistically significant signal could be found. For monochromatic \gamma-ray line emission, flux limits of (2x10^-7 - 2x10^-5) m^-2 s^-1 sr^-1 and (1x10^-8 - 2x10^-6) m^-2 s^-1 sr^-1 are obtained for the central part of the Milky Way halo and extragalactic observations, respectively. For a DM particle mass of 1 TeV, limits on the velocity-averaged DM annihilation cross section < \sigma v >(\chi\chi -> \gamma\gamma) reach ~10^-27 cm^3 s^-1, based on the Einasto parametrization of the Galactic DM halo density profile.

Keywords : 95.35.+d 95.85.Pw Dark matter Gamma-ray

Document type :

Journal articles

Domain :

Physics [physics] / Astrophysics [astro-ph] / High Energy Astrophysical Phenomena [astro-ph.HE]

Sciences of the Universe [physics] / Astrophysics [astro-ph] / High Energy Astrophysical Phenomena [astro-ph.HE]

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Contributor : Claudine Bombar <>
Submitted on : Friday, June 4, 2021 - 3:09:26 PM
Last modification on : Friday, July 16, 2021 - 11:20:03 AM

Search for photon line-like signatures from Dark Matter annihilations with H.E.S.S

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