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arXiv 2009.02735gr-qc
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具有弦流的黑洞

Black holes with a fluid of strings

J. M. Toledo, V. B. Bezerra

摘要:

我们得到了一个带电的、静态的、球对称的、被弦流体包围的、具有宇宙学常数的爱因斯坦方程的精确解。这对应于被弦流体包围的Reissner-Nordström(de Sitter)-Anti de Sitter黑洞。讨论了有关视界和测地运动的一些问题。我们还利用一种从对应的静态解构造旋转解的方法,得到了被弦流体包围的Kerr-Newman黑洞的度规。分析了视界、各能域和测地线运动。在这两种情况下,弦的流体所起的作用被指出。

英文摘要:

We obtain an exact solution of Einstein's equations for a charged, static and spherically symmetric body, surrounded by a fluid of strings and with a cosmological constant. This corresponds to the Reissner-Nordström (de Sitter)-Anti de Sitter black hole surrounded by a fluid of strings. Some aspects concerning the horizons and geodesic motion are discussed. We also obtain the metric corresponding to the Kerr-Newman black hole surrounded by a fluid of strings, by using a method to construct the rotating solution from its counterpart static one. The horizons, ergoregions, and geodesic motion are analyzed. In both cases, the role played by the fluid of strings was pointed out.

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