| Her X-1的食变现象和伴星HZ Her的大气结构 |
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| 引用本文： | 宓国柱,沈金英.Her X-1的食变现象和伴星HZ Her的大气结构[J].空间科学学报,1988,8(4):253-260. |
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| 作者姓名： | 宓国柱 沈金英 |
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| 作者单位： | 1.南京航空学院物理教研室 |
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| 摘 要： | 在密近双星系统Her X-1/HZ Her中,Her X-1被HZ Her掩食时的X射线光度变化,为研究HZ Her的大气结构,提供了一个直接的观测证据。本文对这个系统的二次食变过程资料进行了拟合分析,推断了HZ Her的低层大气结构,面对X射线源一面的大气,由于X射线的加热作用,其低部存在着一层温度约为8×104K的色球层。与已有的HZ Her大气结构理论相比较,大致符合,但有一定差异。本文简单讨论了这种差异。
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| 收稿时间： | 1988-02-13 |
X-ray Eclipse Transitions in Her X-1/HZ Her Binary and the Atmospheric Structure of HZ Her |
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| Institution: | 1.Dept. of Physics, Nanjing Aeronautical Institute2.Dept, of Astronomy, Nanjing University |
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| Abstract: | In close binary system Her X-I/HZ Her,the gradual occultations of the X-ray pulsar Her X-1 by its companion HZ Her offer a direct observational evidence of the atmospheric structure of HZ Her.The transitions in two observations have been fitted and studied.We find that there exists a chromosphere layer with temperature about 8×104K due to X-ray heating at the bottom of HZ Her atmosphere facing the X-ray source.This conclusion is compared with previous theoretical models of HZ Her atmospheric structure.It agrees roughly with the models.Some disagreements are discussed briefly. |
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