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arXiv 2307.09079gr-qc
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约化Kiselev黑洞

Reduced Kiselev black hole

Zhi-Shuo Qu, Towe Wang, Chao-Jun Feng

AI总结:

本文研究约化Kiselev黑洞(参数$w$在$-1/3<w<0$区间),分析其因果结构、热力学、阴影和弱场极限,并探讨替代解释与扩展。

摘要:

Kiselev模型描述了一个被流体包围的黑洞,该流体在径向和切向分别满足状态方程$p_r/ρ=-1$和$p_t/ρ=(3w+1)/2$。该模型在参数区域$-1<w<-1/3$内已被广泛研究。若移除黑洞并转向区域$-1/3<w<0$(即$p_t>0$),则会出现一个新的黑洞型视界。这种情况在Kiselev的开创性工作中已被提及,但在文献中很少被研究。我们将其称为约化Kiselev黑洞,并重新审视这一情况,重点关注其因果结构、热力学、阴影和弱场极限。此外,我们还讨论了该黑洞的替代解释及其扩展。

英文摘要:

The Kiselev model describes a black hole surrounded by a fluid with equations of state $p_r/ρ=-1$ and $p_t/ρ=(3w+1)/2$ respectively in radial and tangential directions. It has been extensively studied in the parameter region $-1<w<-1/3$. If one rids off the black hole and turns to the region $-1/3<w<0$, i.e. $p_t>0$, then a new horizon of black hole type will emerge. This case has been mentioned in Kiselev's pioneer work but seldom investigated in the literature. Referring to it as reduced Kiselev black hole, we revisit this case with attention to its causal structure, thermodynamics, shadow cast and weak-field limit. An alternative interpretation and extensions of the black hole are also discussed.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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