引力塌缩

本文主要致力于黑X射线双星光变曲线以及周期性特征的研究。黑洞是经过恒星引力塌缩而形成的一种质量较大的致密天体，几乎所有的黑洞系统是X射线新星。

This paper is contributed to the study of the light curve and periodicity of the black hole X-ray binary Cyg X-1.Black hole is the high-mass compact object , which is result of the gravity collapse of the star and most of the black hole system is X-ray nova .

证明了Oppenheimer和Snyder关于均匀密度零压星的引力塌缩的经典解是不完整的，它并不能正确地连接作为内解和外解的Friedmann度规和Schwarzschild度规；

The collapse solution of a star with uniform density and zero pressure given in the classic paper of Oppenheimer and Snyder is proved to be incomplete ; it cannot correctly connect the Friedmann and Schwarzschild metrics as the interior and exterior solu tions .

引力塌缩系统的熵变

Entropy charge of gravitational collape systems