Freiburg 2008 – wissenschaftliches Programm
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T: Fachverband Teilchenphysik
T 75: Gammaastronomie IV
T 75.2: Vortrag
Donnerstag, 6. März 2008, 17:00–17:15, KGII-HS 2006
The Crab pulsar: VHE sum-trigger observations with MAGIC — •Thomas Schweizer1, Adam Nepomuk Otte2, Michael Rissi3, Maxim Shayduk2, Eckart Lorenz1, Razmik Mirzoyan1, and Masahiro Teshima1 for the MAGIC collaboration — 1Max Plank institute, Muenchen — 2Humboldt Universitaet, Berlin — 3ETH Zurich
The new observations of the Crab pulsar with the MAGIC telescope by using the analog sum trigger provide a threshold of 25 GeV-30 GeV. This allows one a detailed discussion on the physics of pulsed emission from Crab. As of today, mainly two models try to explain the emission of GeV gamma radiation from the Crab pulsar. These are the outer gap and the polar cap models. Measurements at very upper end of the spectrum may allow one to distinguish between the two models. A discussion on this topic will be presented.