arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2009.06990gr-qc
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具有de Sitter核的规则Kiselev黑洞

Regular Kiselev black hole with a de Sitter core

R. Saadati, F. Shojai

摘要:

我们提出了Kiselev黑洞的一些新的方面,然后研究了该时空中的零和类时薄壳坍缩。对于后者,我们证明了Kiselev黑洞可以与具有薄的类时尘埃壳的de Sitter核匹配,产生非奇异的黑洞时空。讨论了类时超曲面的状态方程参数非负的问题。利用Barrabes-Israel交界条件,得到了壳体的运动方程。讨论了壳层定态解的稳定性,并找到了壳层参数和Kiselev几何参数的适当范围,在此范围内构造了稳定的定态黑洞.

英文摘要:

We present some new aspects of Kiselev black hole and then study the null and timelike thin shell collapse in this spacetime. For the latter, we show that Kiselev black hole can be matched to de Sitter core with a thin timelike dust shell to produce a non-singular black hole space-time. It is argued that for timelike hypersurface, the equation of state parameter must be non-negative. Using Barrabes-Israel junction conditions, the equation of motion of the shell is obtained. The stability of stationary solutions of the shell is discussed and some appropriate ranges for the parameters of shell and Kiselev geometry are found for which a stable stationary black hole is constructed.

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