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arXiv · 1512.02653

Regular nonminimal magnetic black holes in spacetimes with a cosmological constant

Alexander B. Balakin·José P. S. Lemos·Alexei E. Zayats
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Abstract

We consider new regular exact spherically symmetric solutions of a nonminimal Einstein--Yang-Mills theory with a cosmological constant and a gauge field of magnetic Wu-Yang type. The most interesting solutions found are black holes with metric and curvature invariants that are regular everywhere, i.e., regular black holes. We set up a classification of the solutions according to the number and type of horizons. The structure of these regular black holes is characterized by four specific features: a small cavity in the neighborhood of the center, a repulsion barrier off the small cavity, a distant equilibrium point, in which the metric function has a minimum, and a region of Newtonian attraction. Depending on the sign and value of the cosmological constant the solutions are asymptotically de Sitter (dS), asymptotically flat, or asymptotically anti-de Sitter (AdS).

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BibTeXRIS

Alexander B. Balakin, José P. S. Lemos, Alexei E. Zayats. 2016-01-08. Regular nonminimal magnetic black holes in spacetimes with a cosmological constant. https://doi.org/10.1103/physrevd.93.024008

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