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arXiv 0912.3772astro-ph.HEastro-ph.CO
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2009年Mkn 501的VERITAS观测

VERITAS Observations of Mkn 501 in 2009

Dongqing Huang, Alexander Konopelko

摘要:

VERITAS是最新一代的高灵敏度仪器。它通常用于在感兴趣的源的整个观测季节中均匀分布的短活动星系核监测曝光。这些曝光中的每一个都足够长,以在大约1蟹状星云的通量水平上检测到源。在2009年的观测季节中,使用VERITAS对MKN 501进行了多次曝光,揭示了在通量水平上的可变TeV伽马射线发射,最终超过了2蟹状星云。本文总结了2009年MKN 501数据样本的TeV伽马射线光谱和通量变率测量。

英文摘要:

VERITAS is the high-sensitivity instrument of latest generation. It is often used for the short AGN monitoring exposures evenly distributed over entire observational season of a source of interest. Each of these exposures is long enough to detect the source at the flux level of about 1 Crab. During the 2009 observing season a number of exposures of Mkn 501 with VERITAS revealed variable TeV gamma-ray emission at the flux level eventually exceeding 2 Crab. The spectral and flux variability measurements in TeV gamma rays for the 2009 data sample of Mkn 501 are summarized in this paper.

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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