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Antoranz Canales, Pedro and Contreras González, José Luis and Fonseca González, Mª Victoria and López Moya, Marcos and Miranda Pantoja, José Miguel (2007) Observation of VHE gamma-rays from Cassiopeia A with the MAGIC telescope. Astronomy & Astrophysics, 474 (3). pp. 937-940. ISSN 0004-6361
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Official URL: http://dx.doi.org/10.1051/0004-6361:20078168
Abstract
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.
| Item Type: | Article |
|---|---|
| Additional Information: | © ESO 2007. We would like to thank the IAC for the excellent working conditions at the Observatorio del Roque de los Muchachos in La Palma. The support of the German BMBF and MPG, the Italian INFN and the Spanish CICYT is gratefully acknowledged. This work was also supported by ETH |
| Uncontrolled Keywords: | Supernova-Remnants, 5 GHZ, Acceleration, Progenitor, Emission. |
| Subjects: | Sciences > Physics > Electronics Sciences > Physics > Electricity Sciences > Physics > Nuclear physics |
| ID Code: | 23759 |
| Deposited On: | 02 Dec 2013 11:16 |
| Last Modified: | 10 Dec 2018 14:58 |
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