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arXiv 0706.4065astro-ph
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用MAGIC望远镜观测仙后座A的VHE γ射线

Observation of VHE gamma-rays from Cassiopeia A with the MAGIC telescope

J. Albert

摘要:

我们从超新星遗迹仙后座A中寻找甚高能量(VHE)伽马射线辐射。壳型超新星遗迹仙后座A在2006年7月至2007年1月期间被17米MAGIC望远镜观测了47小时。在能量为250 GeV以上探测到该源,其显著性为5.2 sigma,在1 TeV以上探测到的光子通量为(7.3+-0.7_stat+-2.2_sys 10 ^-13 cm^-2 s ^-1。光子光谱符合幂律dN/dE = A E^-Gamma,光子指数Gamma=2.3+-0.2_stat+-0.2_sys。在望远镜的角分辨率范围内,源是点状的。

英文摘要:

We searched for very high energy (VHE) gamma-ray emission from the supernova remnant Cassiopeia A. The shell-type supernova remnant Cassiopeia A was observed with the 17 meter MAGIC telescope between July 2006 and January 2007 for a total time of 47 hours. The source was detected above an energy of 250 GeV with a significance of 5.2sigma and a photon flux above 1 TeV of (7.3+-0.7_stat+-2.2_sys)10^-13 cm^-2s^-1. The photon spectrum is compatible with a power law dN/dE = A E^-Gamma 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.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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