The H.E.S.S. Extragalactic Sky

Abstract

More than fifty extragalactic very high energy (VHE; E>100 GeV) sources have been found using ground-based imaging atmospheric Cherenkov telescopes, about twenty of which have been discovered using the H.E.S.S. (High Energy Stereoscopic System) experiment based in Namibia. Even though BL Lac objects are the dominant class of VHE detected extragalactic objects, other types of sources (starburst galaxies, radio galaxies or flat spectrum radio quasars) begin to emerge. A review of the extragalactic sources studied with H.E.S.S. is given, with an emphasis on new results.

9 pages, 5 figures, to appear in the proceedings of the "4th High Energy Phenomena in Relativistic Outflows (HEPRO IV)" meeting

References in corpus (11)

• Heating Hot Atmospheres with Active Galactic Nuclei
• Very-High-Energy Gamma Rays from a Distant Quasar: How Transparent Is the Universe?
• Fast variability of TeV gamma-rays from the radio galaxy M 87
• The Imprint of The Extragalactic Background Light in the Gamma-Ray Spectra of Blazars
• Fermi Gamma-ray Imaging of a Radio Galaxy
• Spine-sheath layer radiative interplay in subparsec-scale jets and the TeV emission from M87
• H.E.S.S. discovery of VHE gamma-rays from the quasar PKS 1510-089
• A synchrotron self-Compton scenario for the very high energy gamma-ray emission of the radiogalaxy M87
• H.E.S.S and Fermi-LAT discovery of gamma rays from the blazar 1ES 1312-423
• H.E.S.S. Observations of the Prompt and Afterglow Phases of GRB 060602B
• Gamma Ray Bursts