activity
19992026
most citedA low level of extragalactic background light as revealed by gamma-rays from blazars

547 citations · 18.9k across the 248 of their papers we have counts for

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Showing 2014 · astro-ph.GAShow all

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astro-ph.GA2014★ 66 cited

Flux upper limits for 47 AGN observed with H.E.S.S. in 2004-2011

H. E. S. S. Collaboration, A. Abramowski, F. Aharonian +217

About 40% of the observation time of the High Energy Stereoscopic System (H.E.S.S.) is dedicated to studying active galactic nuclei (AGN), with the aim of increasing the sample of…