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

Barrau, A.; Bazer-Bachi, R.; Cabot, H.; Chounet, L. M.; Debiais, G.; Degrange, B.; Dezalay, J. P.; Djannati-Atai, A.; Dumora, D.; Espigat, P.; Fabre, B.; Fleury, P.; Fontaine, G.; George, R.; Ghesquiere, C.; Goret, P.; Gouiffes, C.; Grenier, I. A.; Iacoucci, L.; Bohec, S. Le; Mallet, I.; Meynadier, C.; Munz, F.; Palfrey, T. A.; Pare, E.; Pons, Y.; Punch, M.; Quebert, J.; Ragan, K.; Renault, C.; Rivoal, M.; Rob, L.; Schovanek, P.; Smith, D.; Tavernet, J. P.; Vrana, J.

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

Authors

Description

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