The H.E.S.S. extragalactic sky survey with the first decade of observations

F. Aharonian; F. Ait Benkhali; J. Aschersleben; H. Ashkar; M. Backes; V. Barbosa Martins; R. Batzofin; Y. Becherini; D. Berge; K. Bernlöhr; M. Böttcher; C. Boisson; J. Bolmont; M. de Bony de Lavergne; J. Borowska; M. Bouyahiaoui; F. Bradascio; R. Brose; A. Brown; F. Brun; B. Bruno; T. Bulik; C. Burger-Scheidlin; T. Bylund; S. Casanova; J. Celic; M. Cerruti; T. Chand; S. Chandra; A. Chen; J. Chibueze; O. Chibueze; G. Cotter; P. Cristofari; J. D. Mbarubucyeye; I. D. Davids; J. Devin; J. Djuvsland; A. Dmytriiev; K. Egberts; S. Einecke; S. Fegan; G. Fontaine; S. Funk; S. Gabici; J. F. Glicenstein; J. Glombitza; P. Goswami; G. Grolleron; L. Haerer; B. Heß; J. A. Hinton; W. Hofmann; T. L. Holch; M. Holler; D. Horns; Zhiqiu Huang; M. Jamrozy; F. Jankowsky; A. Jardin-Blicq; E. Kasai; K. Katarzyński; R. Khatoon; B. Khélifi; Nu. Komin; K. Kosack; D. Kostunin; A. Kundu; R. G. Lang; S. Le Stum; A. Lemière; M. Lemoine-Goumard; J.-P. Lenain; F. Leuschner; A. Luashvili; J. Mackey; D. Malyshev; V. Marandon; G. Martí-Devesa; R. Marx; A. Mehta; A. Mitchell; R. Moderski; L. Mohrmann; A. Montanari; M. de Naurois; J. Niemiec; P. O’brien; L. Olivera-Nieto; E. de Ona Wilhelmi; M. Ostrowski; S. Panny; M. Panter; U. Pensec; G. Pühlhofer; M. Punch; A. Quirrenbach; S. Ravikularaman; M. Regeard; A. Reimer; O. Reimer; I. Reis; H. Ren; B. Reville; F. Rieger; G. Rowell; B. Rudak; E. Ruiz-Velasco; V. Sahakian; H. Salzmann; D. A. Sanchez; A. Santangelo; M. Sasaki; J. Schäfer; F. Schüssler; J. N. S. Shapopi; A. Sharma; H. Sol; S. Spencer; Ł. Stawarz; R. Steenkamp; S. Steinmassl; C. Steppa; H. Suzuki; T. Takahashi; T. Tanaka; A. M. Taylor; R. Terrier; A. Thakur; M. Tsirou; C. van Eldik; M. Vecchi; C. Venter; J. Vink; H. J. Völk; T. Wach; S. J. Wagner; A. Wierzcholska; M. Zacharias; A. A. Zdziarski; A. Zech; N. Żywucka

doi:10.1051/0004-6361/202452723

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The H.E.S.S. extragalactic sky survey with the first decade of observations

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The H.E.S.S. extragalactic sky survey with the first decade of observations

F. Aharonian, F. Ait Benkhali, J. Aschersleben, H. Ashkar, M. Backes, V. Barbosa Martins, R. Batzofin, Y. Becherini, D. Berge, K. Bernlöhr, …

Astronomy & Astrophysics - A&A, Vol.695

2025

DOI: https://doi.org/10.1051/0004-6361/202452723

Résumé

galaxies: active

BL Lacertae objects: general

galaxies: jets

gamma rays: galaxies

gamma rays: general

The results of the first extragalactic gamma-ray survey by the High Energy Stereoscopic System (H.E.S.S.) are presented. The survey comprises 2720 hours of very high-energy gamma-ray observations of the extragalactic sky, recorded with H.E.S.S. from 2004 up to the end of 2012. These data have been re-analysed using a common consistent set of up-to-date data calibration and analysis tools. From this analysis, a list of 23 detected objects, predominantly blazars, was obtained. This catalogue was assessed in terms of the source class populations that it contains. The level of source parameter bias for the blazar sources, probed by this observational dataset, was evaluated using Monte-Carlo simulations. Spectral results obtained with the H.E.S.S. data were compared with the Fermi-LAT catalogues to present the full gamma-ray picture of the detected objects. Lastly, this unique dataset was used to assess the contribution of BL Lacertae objects and flat-spectrum radio quasars to the extragalactic gamma-ray background light at several hundreds of gigaelectronvolts. These results are accompanied by the release of the high-level data to the astrophysical community.

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Titre: The H.E.S.S. extragalactic sky survey with the first decade of observations
Créateurs - sans rôle: F. Aharonian
F. Ait Benkhali
J. Aschersleben - Heidelberg University
H. Ashkar - University of Groningen
M. Backes - École Polytechnique
V. Barbosa Martins
R. Batzofin - Deutsches Elektronen-Synchrotron DESY
Y. Becherini - Université Paris Cité
D. Berge - Laboratoire AstroParticule et Cosmologie
K. Bernlöhr - Humboldt-Universität zu Berlin
M. Böttcher
C. Boisson - Janssen
J. Bolmont - Laboratoire de Physique Nucléaire et de Hautes Énergies
M. de Bony de Lavergne - CEA Paris-Saclay
J. Borowska - Commissariat à l'Énergie Atomique et aux Énergies Alternatives
M. Bouyahiaoui - Humboldt-Universität zu Berlin
F. Bradascio - Max Planck Institute for Nuclear Physics
R. Brose - Commissariat à l'Énergie Atomique et aux Énergies Alternatives
A. Brown - Dublin Institute For Advanced Studies
F. Brun - University of Oxford
B. Bruno - Université Paris-Saclay
T. Bulik - Friedrich-Alexander-Universität Erlangen-Nürnberg
C. Burger-Scheidlin - University of Warsaw
T. Bylund - Dublin Institute For Advanced Studies
S. Casanova - Commissariat à l'Énergie Atomique et aux Énergies Alternatives
J. Celic - Institute of Nuclear Physics, Polish Academy of Sciences
M. Cerruti - Laboratoire AstroParticule et Cosmologie
T. Chand - Université Paris Cité
S. Chandra - North-West University
A. Chen - North-West University
J. Chibueze - University of the Witwatersrand
O. Chibueze - North-West University
G. Cotter - North-West University
P. Cristofari - University of Oxford
J. D. Mbarubucyeye - Centre National de la Recherche Scientifique
I. D. Davids - Deutsches Elektronen-Synchrotron DESY
J. Devin - Université de Montpellier, Laboratoire Univers et Particules de Montpellier - LUPM
J. Djuvsland - Centre National de la Recherche Scientifique
A. Dmytriiev - Max Planck Institute for Nuclear Physics
K. Egberts - North-West University
S. Einecke - University of Potsdam
S. Fegan - The University of Adelaide
G. Fontaine - Laboratoire Leprince-Ringuet
S. Funk - École Polytechnique
S. Gabici - Laboratoire AstroParticule et Cosmologie
J. F. Glicenstein - Laboratoire AstroParticule et Cosmologie
J. Glombitza - Université Paris-Saclay
P. Goswami - Université Paris Cité
G. Grolleron - Laboratoire de Physique Nucléaire et de Hautes Énergies
L. Haerer - Centre National de la Recherche Scientifique
B. Heß
J. A. Hinton - University of Tübingen
W. Hofmann - Max Planck Institute for Nuclear Physics
T. L. Holch - Max Planck Institute for Nuclear Physics
M. Holler - Deutsches Elektronen-Synchrotron DESY
D. Horns - Universität Innsbruck
Zhiqiu Huang - Universität Hamburg
M. Jamrozy - Max Planck Institute for Nuclear Physics
F. Jankowsky - Jagiellonian University
A. Jardin-Blicq - Laboratoire de Physique des deux infinis Bordeaux
E. Kasai - Centre National de la Recherche Scientifique
K. Katarzyński - University of Namibia
R. Khatoon - Nicolaus Copernicus University
B. Khélifi - Laboratoire AstroParticule et Cosmologie
Nu. Komin - Centre National de la Recherche Scientifique
K. Kosack - University of the Witwatersrand
D. Kostunin - Université Paris-Saclay
A. Kundu - Deutsches Elektronen-Synchrotron DESY
R. G. Lang - North-West University
S. Le Stum - Centre de physique des particules de Marseille
A. Lemière - Aix-Marseille Université
M. Lemoine-Goumard - Laboratoire de Physique des deux infinis Bordeaux
J.-P. Lenain - Centre National de la Recherche Scientifique
F. Leuschner - Centre National de la Recherche Scientifique
A. Luashvili - University of Tübingen
J. Mackey - Centre National de la Recherche Scientifique
D. Malyshev - Dublin Institute For Advanced Studies
V. Marandon - University of Tübingen
G. Martí-Devesa - CEA Paris-Saclay
R. Marx - Universität Innsbruck
A. Mehta - Heidelberg University
A. Mitchell - Deutsches Elektronen-Synchrotron DESY
R. Moderski - Friedrich-Alexander-Universität Erlangen-Nürnberg
L. Mohrmann - Polish Academy of Sciences
A. Montanari - Max Planck Institute for Nuclear Physics
M. de Naurois - Laboratoire Leprince-Ringuet
J. Niemiec - École Polytechnique
P. O’brien - Institute of Nuclear Physics, Polish Academy of Sciences
L. Olivera-Nieto - University of Leicester
E. de Ona Wilhelmi - Max Planck Institute for Nuclear Physics
M. Ostrowski - Deutsches Elektronen-Synchrotron DESY
S. Panny - Jagiellonian University
M. Panter - Universität Innsbruck
U. Pensec - Laboratoire de Physique Nucléaire et de Hautes Énergies
G. Pühlhofer - Sorbonne Université
M. Punch - University of Tübingen
A. Quirrenbach - Centre National de la Recherche Scientifique
S. Ravikularaman - Heidelberg University
M. Regeard - Université Paris Cité
A. Reimer - Laboratoire AstroParticule et Cosmologie
O. Reimer
I. Reis
H. Ren
B. Reville
F. Rieger
G. Rowell
B. Rudak
E. Ruiz-Velasco - Laboratoire d’Annecy de Physique des Particules
V. Sahakian
H. Salzmann
D. A. Sanchez - Laboratoire d’Annecy de Physique des Particules
A. Santangelo
M. Sasaki
J. Schäfer
F. Schüssler
J. N. S. Shapopi
A. Sharma - AstroParticule et Cosmologie
H. Sol
S. Spencer
Ł. Stawarz
R. Steenkamp
S. Steinmassl
C. Steppa
H. Suzuki
T. Takahashi
T. Tanaka
A. M. Taylor
R. Terrier - AstroParticule et Cosmologie
A. Thakur
M. Tsirou
C. van Eldik
M. Vecchi
C. Venter
J. Vink
H. J. Völk
T. Wach
S. J. Wagner
A. Wierzcholska
M. Zacharias
A. A. Zdziarski
A. Zech
N. Żywucka
Détails de publication: Astronomy & Astrophysics - A&A, Vol.695
Identifiants: 99150299909311
Unité académique: Laboratoire Univers et Particules de Montpellier - LUPM
Langue: English
Type de ressource: Journal article
Champs locaux: hal-05011168