activity
19992019
most citedThe Crab Nebula and Pulsar between 500 GeV and 80 TeV: Observations with the HEGRA stereoscopic air Cherenkov telescopes

280 citations · 1.8k across the 21 of their papers we have counts for

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Showing 2003Show all

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astro-ph2003★ 60 cited

The Technical Performance of the HEGRA System of Imaging Air Cherenkov Telescopes

G. Puehlhofer, O. Bolz, N. Goetting +1

Between early 1997 and late 2002, the HEGRA collaboration operated a stereoscopic system of 4 (later 5) imaging atmospheric Cherenkov telescopes. In this paper we present the calib…

astro-ph2003★ 169 cited

Is the Giant Radio Galaxy M87 a TeV Gamma-Ray Emitter?

HEGRA Collaboration, F. Aharonian, A. Akhperjanian +1

For the first time an excess of photons above an energy threshold of 730 GeV from the giant radio galaxy M87 has been measured at a significance level above 4 sigma. The data have…