Bonn 2001 – wissenschaftliches Programm

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T: Teilchenphysik

T 401: Kosmische Strahlung 4

T 401.3: Vortrag

Mittwoch, 28. März 2001, 14:30–14:45, HS I

Observations of the Monoceros SNR/Rosette nebula interacting region with the HEGRA system of IACTs — •Fabrizio Lucarelli1,2 and Alexander Konopelko11Max-Planck-Institut für Kernphysik, Heidelberg — 2Facultad de Ciencias Fisicas, Universidad "Complutense", Madrid

The array of 5 imaging atmospheric Čerenkov telescopes (IACTs) deployed at La Palma of Canary Island, and operated by the HEGRA (High Energy Gamma Ray Astronomy) collaboration, was used for the observations of the interaction region of the Monoceros SNR with the dense Rosette nebula for a total of about 60 hrs and 10 hrs in ON-source and OFF-source mode, respectively. At present the performance of the IACTs array reveals the energy threshold of 500 GeV and the angular resolution of 0.1 for γ-rays. We have mapped the extended sky region of 2× 2 associated with the Monoceros SNR/Rosette nebula and which is centered towards the hard spectrum X-ray point source J0635+533, recently detected by the Italian-Dutch satellite BeppoSAX. The EGRET source of the diffuse emission in the energy range 100 MeV - 10 GeV was effectively in the field of view of present observations. We will present the result of the data analysis and its physical interpretation.

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