Black holes with a fluid of strings

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...

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Bibliographic Details
Published in:Annals of physics 2020-12, Vol.423, p.168349, Article 168349
Main Authors: Toledo, J.M., Bezerra, V.B.
Format: Article
Language:English
Subjects:
Fluid of strings
Rotating black holes
Static black hole solutions
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Summary: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. •We obtain the solutions corresponding to black holes with a fluid of strings.•Static and stationary black solutions are studied.•In an appropriate limit, the fluid can explain the flat rotation curve of galaxies.
ISSN:0003-4916
1096-035X
DOI:10.1016/j.aop.2020.168349