arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2211.08061gr-qc
收藏

具有规则视界的轴对称旋转黑洞

Axially symmetric rotating black hole with regular horizons

H. V. Ovcharenko, O. B. Zaslavskii

AI总结:

本文研究轴对称旋转黑洞的规则视界,通过视界附近度规行为的一般形式,比较曲率不变量与自由落体参考系中曲率张量分量的有界性要求,并分别分析非极端、极端和超极端视界。

摘要:

我们考虑轴对称旋转黑洞的度规。我们不指定度规的具体形式,仅依赖于其在视界附近的行为。通常,在推广博耶-林德奎斯特坐标的坐标系中,该行为由两个整数p和q表征,它们进入时间度规系数和径向度规系数在主近似下的渐近展开。对于给定的p和q,我们找到了度规规则的一般形式,以及度规系数的展开形式。我们比较了两种类型的要求:(i)曲率不变量的有界性,(ii)自由落体参考系中曲率张量各分量的有界性。分析分别针对非极端、极端和超极端视界进行。

英文摘要:

We consider the metric of an axially symmetric rotating black hole. We do not specify the concrete form of a metric and rely on its behavior near the horizon only. Typically, it is characterized (in the coordinates that generalize the Boyer-Lindquist ones) by two integers $p$ and $q$ that enter asymptotic expansions of the time and radial metric coefficients in the main approximation. For given $p,$ $q$ we find a general form for which the metric is regular, and how the expansions of the metric coefficients look like. We compare two types of requirement: (i) boundedness of curvature invariants, (ii) boundedness of separate components of the curvature tensor in a free falling frame. Analysis is done for nonextremal, extremal and ultraextremal horizons separately.

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。

↑