Observation of VHE gamma-rays from Cassiopeia A with the MAGIC telescope
Aims. We searched for very high energy (VHE)gamma-ray emission from the supernova remnant Cassiopeia A. Methods. The shell-type supernova remnant Cassiopeia A was observed with the 17 m MAGIC telescope between July 2006 and January 2007 for a total time of 47 h. Results. The source was detected abov...
| Authors: | , , , , |
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| Format: | article |
| Publication Date: | 2007 |
| Country: | España |
| Institution: | Universidad Complutense de Madrid (UCM) |
| Repository: | Docta Complutense |
| Language: | English |
| OAI Identifier: | oai:docta.ucm.es:20.500.14352/50899 |
| Online Access: | https://hdl.handle.net/20.500.14352/50899 |
| Access Level: | Open access |
| Keyword: | 537 539.1 Supernova-Remnants 5 GHZ Acceleration Progenitor Emission. Electrónica (Física) Electricidad Física nuclear 2202.03 Electricidad 2207 Física Atómica y Nuclear |
| Summary: | Aims. We searched for very high energy (VHE)gamma-ray emission from the supernova remnant Cassiopeia A. Methods. The shell-type supernova remnant Cassiopeia A was observed with the 17 m MAGIC telescope between July 2006 and January 2007 for a total time of 47 h. Results. The source was detected above an energy of 250 GeV with a significance of 5.2s and a photon flux above 1 TeV of (7.3 +/- 0.7(stat) +/- 2.2(sys)) x 10(-13) cm(-2)s(-1). The photon spectrum is compatible with a power law dN/dE proportional to E-r with a photon index Gamma = 2.3 +/- 0.2(stat) +/- 0.2(sys). The source is point- like within the angular resolution of the telescope. |
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