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T: Fachverband Teilchenphysik
T 72: Gammaastronomie I
T 72.2: Talk
Monday, March 3, 2008, 17:00–17:15, KGII-HS 2006
Discovery of Very High Energy Gamma Rays from the Flat Spectrum Radio Quasar 3C279 with the MAGIC Telescope — •Pratik Majumdar1, Rudolf Bock1, Daniel Kranich2, Eckart Lorenz2,1, Masahiro Teshima1, and Robert Wagner1 — 1Max Planck Institut fur Physik, Muenchen — 2ETH, Zurich, Switzerland
The quasar 3C279 is one of the best studied flat spectrum radio quasars (FSRQ). It is located at a comparatively large redshift of z=0.536. Observations of such distant sources were until recently impossible owing to the expected steep energy spectrum and the attenuation of gamma rays by extragalactic background light (EBL). We report the detection of significant very high energy gamma ray signal from 3C279 in early 2006 in the E>75 GeV energy range and discuss the implication of these results.