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30th International Cosmic Ray Conference - ICRC'07, Merida : Mexique (2007)
Observation of the SNR Cassiopeia A with the MAGIC telescope.
E. De Oña Wilhelmi1, V. Vitale, A. Robert, N. Mankuzhiyil, J. Cortina

The Supernova remnant Cassiopeia A was observed with the 17 meter imaging atmospheric Cherenkov telescope MAGIC for about 50 hours in winter 2006/07. The observations were performed in the so-called wobble mode, under moderated Moon illumination. Above 1 TeV, Cas A has been detected by the HEGRA Stereoscopic Cherenkov Telescope System, at the level of few percent of Crab. The detection of TeV gamma-rays proves that Cas A is a site of CR acceleration for particles - either nucleons or electrons - with multi-TeV energies. A detailed study of the Cas A spectrum and its extention to lower energies, where MAGIC achieves its best sensitivity, will be presented.
1 :  APC - UMR 7164 - AstroParticule et Cosmologie
Physique/Astrophysique/Astrophysique stellaire et solaire

Planète et Univers/Astrophysique/Astrophysique stellaire et solaire