Observations of TeV gamma rays from Markarian 501 at large zenith angles
arXiv:astro-ph/9904405 · doi:10.1088/0954-3899/25/8/316
Abstract
TeV gamma rays from the blazar Markarian 501 have been detected with the University of Durham Mark 6 atmospheric Cerenkov telescope using the imaging technique at large zenith angles. Observations were made at zenith angles in the range 70 - 73 deg during 1997 July and August when Markarian 501 was undergoing a prolonged and strong flare.
7 pages, 2 figures, accepted for publication in J. Phys. G.: Nucl. Part. Phys