München 2009 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 82: Gamma-Astronomie 1

T 82.2: Vortrag

Montag, 9. März 2009, 17:20–17:35, M218

MAGIC observations of the Crab Pulsar — •Takayuki Saito¹, Adam Nepomuk Otte², Michael Rissi³, Thomas Schweizer¹, Maxim Shayduk¹, Eckart Lorenz¹, Razmik Mirzoyan¹, and Masahiro Teshima¹ — ¹Max-Planck-Institut fuer Physik, Muchen, Germany — ²University of California, Santa Cruz, USA — ³ETH Zurich, Switzerland

The new observations of the Crab pulsar with the MAGIC telescope by using the analog sum trigger provide a threshold of 25 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.