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T: Fachverband Teilchenphysik
T 90: Gammaastronomie 2
T 90.2: Gruppenbericht
Dienstag, 28. Februar 2012, 17:05–17:25, ZHG 008
Observations of the Crab pulsar and the Crab Nebula with the MAGIC telescopes — •Takayuki Saito1, Emiliano Carmona2, Gianluca Giavitto3, Stefan Klepser3, Daniel Mazin1,3, Thomas Schweizer1, Julian Sitarek3, and Roberta Zanin4 — 1Max-Planck-Institut fuer Physik, Muenchen, Germany — 2CIEMAT, Madrid, Spain — 3IFAE, Barcelona, Spain — 4UB, Barcelona, Spain
The Crab Pulsar has been detected by MAGIC both in mono-mode and in stereo mode. The mono-mode observations measure the energy spectrum from 25 GeV to 100 GeV, while the stereo mode observations covers from 50 GeV to 400 GeV. The measured energy spectrum deviates significantly from the exponential cutoff spectrum which had been predicted by many theoretical models and inferred from the Fermi-LAT observations. With the stereo system, MAGIC could also measure the energy spectrum of the Crab Nebula from 50 GeV to 45 TeV. Combined with the Fermi-LAT measurements, the IC peak was estimated with a high precision.
Here we report on the details of these observations and theoretical interpretation of the measured spectra.