X射线照射下HZ Her大气的非球对称结构和观测证据  

THE NON-SPHERICALLY SYMMETRIC STRUCTURE OF X-RAY ILLUMINATED HZ Her ATMOSPHERE AHD THE OBSERVATIONAL EVIDENCE

作　　者：宓国柱[1] 沈金英[2] 

机构地区：[1]南京航空学院物理教研室 [2]南京大学管理系

出　　处：《空间科学学报》1989年第2期81-86,共6页Chinese Journal of Space Science

摘　　要：在密近双星系统Her X-1/Hz Her中,Her X-1的X射线辐射对HZ Her大气的加热效应,使大气结构变得很复杂.本文从理论上分析了HZ Her大气的非球对称结构,计算了以指数密度分布大气的温度、电离度等值线,描述了不在双星连心线上的大气结构,讨论了色球层、跃变层和星冕的位置变化.本文还对该系统的食变观测资料作了细致的分析,得到了与视线垂直的径向上不同层次的大气密度分布,与理论符合得很好.In close binary system Her X-1/HZ Her, the structure of HZ Her atmosphere is complicated due to X-ray heating. The non-spherically symmetric structure of HZ Her atmosphere is examined. The temperature and ionization contours for the atmosphere with exponential density distribution are calculated. The positions and physical properties of chromosphere, transition layer and corona along different radial lines are described. The eclipse transition data of this system is analysed in detail, and the density distribution for different layers along the radial line perpendicular to the sight line is obtained. This distribution agrees with the theory very well.

关 键 词：密近双星 X射线 非球对称结构 

分 类 号：P153[天文地球—天文学]