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arXiv · 1705.04168

Charged cosmological black hole

Rahim Moradi·Clément Stahl·Javad T. Firouzjaee·She-Sheng Xue
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Abstract

The cosmological black holes are black holes living not in an asymptotically flat universe but in an expanding spacetime. They have a rich dynamics in particular for their mass and horizon. In this article we perform a natural step in investigating this new type of black hole: we consider the possibility of a \textit{charged} cosmological black hole. We derive the general equations of motion governing its dynamics and report a new analytic solution for the special case of the charged Lema\^itre-Tolman-Bondi equations of motion that describe a charged cosmological black hole. We then study various relevant quantities for the characterization of the black hole such as the C-function, the effect of the charge on the black hole flux and the nature of the singularity. We also perform numerical investigations to strengthen our results. Finally we challenge a model of gamma ray burst within our framework.

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Rahim Moradi, Clément Stahl, Javad T. Firouzjaee, She-Sheng Xue. 2017-05-10. Charged cosmological black hole. https://doi.org/10.1103/physrevd.96.104007

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