Detection of Vhe Gamma-Rays from MRK 501 with the Cat Imaging Telescope
/ Authors
A. Barrau, R. Bazer-Bachi, H. Cabot, L. Chounet, G. Debiais, B. Degrange, J. Dezalay, A. Djannati-Atai, D. Dumora, P. Espigat
and 26 more authors
B. Fabre, P. Fleury, G. Fontaine, R. George, C. Ghesquière, P. Goret, C. Gouiffès, I. Grenier, L. Iacoucci, S. L. Bohec, I. Mallet, C. Meynadier, F. Munz, T. Palfrey, É. Paré, Y. Pons, M. Punch, J. Québert, K. Ragan, C. Renault, M. Rivoal, L. Rob, P. Schovanek, D. Smith, J. Tavernet, J. Vrána
/ 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.