| 天鹅座X-3 X光子对γ射线的吸收 |
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| 引用本文： | 李惕碚,吴枚,唐小平.天鹅座X-3 X光子对γ射线的吸收[J].中国天文和天体物理学报,1990(3). |
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| 作者姓名： | 李惕碚 吴枚 唐小平 |
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| 作者单位： | 中国科学院高能物理所高能天体物理实验室
(李惕碚，吴枚)，中国科学院高能物理所高能天体物理实验室(唐小平) |
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| 摘 要： | 通过处理天文卫星COS-B的数据,我们首次获得了Cygnus X-3的γ射线像,并且发现了150—5000 MeV高能γ辐射与2—12keV X辐射强度的负相关现象,即X射线高态时的γ辐射比低态时弱. γ-X负相关现象可以用吸积盘X射线冕区中密集的X射线光子对γ射线的吸收作用解释.
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| 关 键 词： | 伽傌源 X射线双星 辐射机制 |
Absorption of Gamma Rays by X-Ray Photons Around Cygnus X-3 |
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| Li Tipei Wu Mei Tang Xiaoping.Absorption of Gamma Rays by X-Ray Photons Around Cygnus X-3[J].Chinese Journal of Astronomy and Astrophysics,1990(3). |
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| Authors: | Li Tipei Wu Mei Tang Xiaoping |
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| Abstract: | We calculated the absorption effect of gamma-rays of Cygnus X-3 by the ambient X-ray photons through the photon-photon pair production and inverse Compton scattering. Differences between the appearance of the spectrum of Cygnus X-3 gamma-rays in the X-ray high state and that in the low state indicate the presence of this effect. |
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| Keywords: | Gamma-ray sources-X-ray binaries-Radiation mechanisms |
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