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T: Fachverband Teilchenphysik

T 72: Gammaastronomie I

T 72.2: Vortrag

Montag, 3. März 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 Lorenz^2,1, 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.