Detection of Vhe Gamma-Rays from MRK 501 with the Cat Imaging Telescope

Abstract

The CAT imaging telescope on the site on the former solar plant Themis has been observing gamma-rays from Mrk501 above 220 GeV in March and April 1997. This source is shown to be highly variable and the light curve is presented. The detected gamma-ray rate for the most intense flare is in excess of 10 per minute.

5 pages, 4 figures, Tex, contribution to 25th ICRC Durban