Wuppertal 2015 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 27: Gammaastronomie II

T 27.7: Vortrag

Montag, 9. März 2015, 18:15–18:30, I.13.71 (HS 28)

The Crab pulsar at Tera-electron-Volts energies — David Carreto Fidalgo¹, Daniel Galindo², Emma de Oña Wilhelmi³, Roberta Zanin², •Jezabel Rodriguez Garcia^4,5, 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.