Astronomy and Astrophysics – Astronomy
Scientific paper
Jun 2000
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000aipc..515...81h&link_type=abstract
GeV-TeV GAMMA RAY ASTROPHYSICS WORKSHOP: Towards a Major Atmospheric Cherenkov Detector VI. AIP Conference Proceedings, Volume
Astronomy and Astrophysics
Astronomy
Gamma-Ray Astronomy, Gamma-Ray Sources (Astronomical), Active Galaxies, Galactic Nuclei, Quasars, Red Shift, Gamma-Ray Detection
Scientific paper
The HEGRA IACT stereoscopic system, with an energy threshold of about 0.5 TeV, was used to search for γ-ray emission of several low redshift AGN (z<0.2), mostly BL Lacs. Here we present the results of observations that were made since June 1997 at zenith angles up to 40°. No evidence for TeV emission is detected and the corresponding upper limits in Crab units are given. .
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