Gravitational Collapse of a Spherical Star with Heat Flow as a Possible Energy Mechanism of Gamma-Ray Bursts
Gravitational Collapse of a Spherical Star with Heat Flow as a Possible Energy Mechanism of Gamma-Ray Bursts
复制标题
球状恒星的引力塌缩与热流作为伽马射线爆发的可能能量机制
DOI：
10.1088/0253-6102/50/1/52
复制
发表时间：
2008
期刊：
影响因子：
--
通讯作者：
Xin Li
中科院分区：
文献类型：
--
作者：
Zhe Chang;C. Guan;Chao;Xin Li
本文研究了球对称非均匀星星的引力坍缩，该恒星由具有热流的理想流体描述，其中心满足状态方程p = ρ/3。在引力坍缩的过程中，整个星星的能量被发射到太空中。剩下的时空是一个闵可夫斯基时空，在过程结束时没有残余。对于一颗太阳质量和太阳半径的星星，其辐射的总能量约为1054 erg，时间尺度约为8 s。这是伽玛射线暴的典型值。因此，我们认为具有热流的球形星星的引力坍缩是伽玛射线暴的一种可能的能量机制。
We investigate the gravitational collapse of a spherically symmetric, inhomogeneous star, which is described by a perfect fluid with heat flow and satisfies the equation of state p = ρ/3 at its center. In the process of the gravitational collapse, the energy of the whole star is emitted into space. And the remaining spacetime is a Minkowski one without a remnant at the end of the process. For a star with a solar mass and solar radius, the total energy emitted is at the order of 1054 erg, and the time-scale of the process is about 8 s. These are in the typical values for a gamma-ray burst. Thus, we suggest the gravitational collapse of a spherical star with heat flow as a possible energy mechanism of gamma-ray bursts.
DOI：
10.1017/9781009253161
发表时间：
2023-02
期刊：
--
影响因子：
--
作者：
S. Hawking;G. Ellis
通讯作者：
S. Hawking;G. Ellis