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arXiv 1202.6439astro-ph.HEastro-ph.COhep-ph
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蟹状星云中的Gamma-ray耀斑和吸收:可爱的TeV-PeV天体物理学

Gamma-ray flare and absorption in Crab Nebula: Lovely TeV-PeV astrophysics

Kazunori Kohri, Yutaka Ohira, Kunihito Ioka

摘要:

我们光谱适合GeV的伽玛射线耀斑最近观察到的蟹状星云考虑一个小的斑点洛伦兹推向我们。指出TeV-PeV区的逆康普顿耀斑比同步辐射增强了一个洛伦兹因子平方\sim <$^2,它已经排除了<$\gtrsim 200,并将被未来的TeV-PeV观测站CTA,Tibet AS + MD和LHAASO探测到。我们还表明,从蟹状星云发出的PeV光子被吸收的宇宙微波背景辐射通过电子-正电子对创建。

英文摘要:

We spectrally fit the GeV gamma-ray flares recently-observed in the Crab Nebula by considering a small blob Lorentz-boosted towards us. We point out that the corresponding inverse-Compton flare at TeV--PeV region is more enhanced than synchrotron by a Lorentz factor square \sim Γ^2, which is already excluding Γ\gtrsim 200 and will be detected by future TeV - PeV observatories, CTA, Tibet AS + MD and LHAASO for Γ\gtrsim 30. We also show that PeV photons emitted from the Crab Nebula are absorbed by Cosmic Microwave Background radiation through electron-positron pair creation.

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