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宇宙线分布、氢分布和宇宙γ射线
引用本文:周大庄,K.K.Tang.宇宙线分布、氢分布和宇宙γ射线[J].中国天文和天体物理学报,1991(3).
作者姓名:周大庄  K.K.Tang
作者单位:中国科技大学地球与空间科学系 (周大庄),美国芝加哥大学费米研究所天体物理与空间研究室(K.K.Tang)
摘    要:本文利用几种典型的银河系宇宙线分布律和星际氢分布律计算单漏模式和双漏模式中的弥散宇宙γ射线谱。结果表明,几种典型的宇宙线分布中,李惕碚的分布律优于其他作者的分布律;星际氢分子数量的取值应当比Gordon值除以1.7更小;只要适当地选择宇宙线分布和氢分布就可得到与观测γ谱相近的理论谱,宇宙线分布和氢分布均可在一定范围里选取。

关 键 词:宇宙线  氢分布  γ射线

Cosmic Ray Distributions Hydrogen Distributions and Cosmic Gamma Rays
Zhou Dazhuang.Cosmic Ray Distributions Hydrogen Distributions and Cosmic Gamma Rays[J].Chinese Journal of Astronomy and Astrophysics,1991(3).
Authors:Zhou Dazhuang
Abstract:This paper deals with diffuse cosmic gamma rays in "Single Leaky Box Model" and in "Double Leaky Box Model" by means of several typical galactic cosmic ray distribution laws and hydrogen distribution laws. The calculated results indicate that in the several typical CR distribution laws, Li Tipei's distribution is much favourable than others' both in earth-galactic center direction and in earth-anticenter direction; the value of interstellar molecular hydrogen distribution should be smaller than the Gordon's value divided by 1.7; the calculated diffuse cosmic gamma ray spectra close to the observed ones can be obtained so long as the reasonable CR distribution and the reasonable interstellar hydrogen distribution are selected, so the CR distributions and the hydrogen distributions may vary within a certain range.
Keywords:Cosmic ray-hydrogen distributions-cosmic gamma rays
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