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Wuppertal 2015 – scientific programme

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T: Fachverband Teilchenphysik

T 27: Gammaastronomie II

T 27.7: Talk

Monday, March 9, 2015, 18:15–18:30, I.13.71 (HS 28)

The Crab pulsar at Tera-electron-Volts energiesDavid Carreto Fidalgo1, Daniel Galindo2, Emma de Oña Wilhelmi3, Roberta Zanin2, •Jezabel Rodriguez Garcia4,5, and Francesco Dazzi4 for the MAGIC collaboration — 1Universidad Complutense, Madrid, Spain — 2Universitat de Barcelona ICC IEEC-UB, Barcelona, Spain — 3Institute of Space Sciences, Barcelona, Spain — 4Max-Planck-Institut für Physik, München, Germany — 5Inst. de Astrofísica de Canarias, La Laguna Tenerife, Spain

MAGIC is a system of two 17 m-diameter Imaging Atmospheric Cherenkov Telescopes (IACTs) located at the Roque de los Muchachos observatory (ORM, 28.8°N, 17.8°W, 2200 m a.s.l.) on the Canary island of La Palma. This system has observed the most energetic ever detected pulsed gamma-ray from an astrophysical source, 2 Tera-electron-Volt emission from the Crab pulsar. Such measurements shed light on the particle acceleration mechanism of pulsars, pointing to Inverse Comptom scattering of IR -- X-ray photons at a distance bigger than 25 stellar radii from the neutron star. These are highly relevant results, since they challenge all the existing theoretical models as none of them can reproduce all the constrains that this observation has imposed.

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