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Main Authors:	Brun, François, Sanchez, David, Taylor, Andrew M., Cerruti, Matteo, Lenain, Jean-Philippe
Format:	Preprint
Published:	2025
Subjects:	High Energy Astrophysical Phenomena
Online Access:	https://arxiv.org/abs/2512.16005
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author	Brun, François Sanchez, David Taylor, Andrew M. Cerruti, Matteo Lenain, Jean-Philippe
author_facet	Brun, François Sanchez, David Taylor, Andrew M. Cerruti, Matteo Lenain, Jean-Philippe
contents	During its first phase, from 2004 up to the end of 2012, the H.E.S.S. (High Energy Stereoscopic System) experiment observed the extragalactic skies for more than 2700 hours. These data have been re-analysed in a single consistent framework, leading to the derivation of a catalog of 23 sources. In total, about 5.7% of the sky was observed, allowing for several additional studies to be conducted: source variability, extragalactic gamma-ray background light, and comparison with the Fermi-LAT catalogues. In this contribution, we discuss these results and present the high-level data (catalogs, maps) released to the astrophysical community.
format	Preprint
id	arxiv_https___arxiv_org_abs_2512_16005
institution	arXiv
publishDate	2025
record_format	arxiv
spellingShingle	HEGS : Revisiting a decade of H.E.S.S. extragalactic observations Brun, François Sanchez, David Taylor, Andrew M. Cerruti, Matteo Lenain, Jean-Philippe High Energy Astrophysical Phenomena During its first phase, from 2004 up to the end of 2012, the H.E.S.S. (High Energy Stereoscopic System) experiment observed the extragalactic skies for more than 2700 hours. These data have been re-analysed in a single consistent framework, leading to the derivation of a catalog of 23 sources. In total, about 5.7% of the sky was observed, allowing for several additional studies to be conducted: source variability, extragalactic gamma-ray background light, and comparison with the Fermi-LAT catalogues. In this contribution, we discuss these results and present the high-level data (catalogs, maps) released to the astrophysical community.
title	HEGS : Revisiting a decade of H.E.S.S. extragalactic observations
topic	High Energy Astrophysical Phenomena
url	https://arxiv.org/abs/2512.16005

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