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MAGIC OBSERVATIONS OF THE UNIDENTIFIED γ-RAY SOURCE TeV J2032+4130

机译:未知的γ射线源TeV J2032 + 4130的魔术观察

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摘要

We observed the first known very high energy (VHE) γ-ray-emitting unidentified source, TeV J2032+4130, for 94 hr with the MAGIC telescope. The source was detected with a significance of 5.6 σ. The flux, position, and angular extension are compatible with the previous ones measured by the HEGRA telescope system 5 years ago. The integral flux amounts to (4.5 ± 0.3_(stat) ± 0.35_(sys)) × 10~(-13) photons cm~(-2) s~(-1) above 1 TeV. The source energy spectrum, obtained with the lowest energy threshold to date, is compatible with a single power law with a hard photon index of Γ = -2.0 ± 0.3_(stat) ± 0.2_(sys).
机译:我们用MAGIC望远镜观测了第一个已知的发射极高能量(VHE)γ射线的未识别光源TeV J2032 + 4130,历时94小时。检测到该源的显着性为5.6σ。通量,位置和角度扩展与5年前HEGRA望远镜系统测得的通量,位置和角度扩展兼容。积分通量等于(4.5±0.3_(stat)±0.35_(sys))×10〜(-13)光子cm〜(-2)s〜(-1),高于1 TeV。迄今为止,以最低的能量阈值获得的源能谱与具有Γ= -2.0±0.3_(stat)±0.2_(sys)的硬光子指数的单幂定律兼容。

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