Hamburg 2016 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 38: Gammaastronomie II

T 38.8: Vortrag

Montag, 29. Februar 2016, 18:30–18:45, VMP9 SR 27

FACT - Energy Spectrum of the Crab Nebula — •Fabian Temme, Sabrina Einecke, and Jens Buss for the FACT collaboration — TU Dortmund, Experimental Physics 5, Otto-Hahn-Str.4, 44221 Dortmund, Germany

The First G-APD Cherenkov Telescope is the first Imaging Air Cherenkov Telescope which uses silicon photon detectors (G-APDs aka SiPM) as photo sensors. With more than four years of operation, FACT proved an application of SiPMs is suitable for the field of ground-based gamma-ray astronomy. Due to the stable flux at TeV energies, the Crab Nebula is handled as a "standard candle" in Cherenkov astronomy. The analysis of its energy spectrum and comparison with other experiments, allows to evaluate the performance of FACT. A modern analysis chain, based on data stream handling and multivariate analysis methods was developed in close cooperation with the department of computer science at the TU Dortmund. In this talk, this analysis chain and its application will be presented. Further to this, results, including the energy spectrum of the Crab Nebula, measured with FACT, will be shown.