Regular black holes in an asymptotically de Sitter universe

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dc.creatorMatyjasek, Jerzy
dc.creatorTryniecki, Dariusz
dc.creatorKlimek, Mariusz
dc.date2008-09-12
dc.date.accessioned2026-07-07T12:40:18Z
dc.date.available2026-07-07T12:40:18Z
dc.descriptionA regular solution of the system of coupled equations of the nonlinear electrodynamics and gravity describing static and spherically-symmetric black holes in an asymptotically de Sitter universe is constructed and analyzed. Special emphasis is put on the degenerate configurations (when at least two horizons coincide) and their near horizon geometry. It is explicitly demonstrated that approximating the metric potentials in the region between the horizons by simple functions and making use of a limiting procedure one obtains the solutions constructed from maximally symmetric subspaces with different absolute values of radii. Topologically they are $AdS_{2}\times S^{2}$ for the cold black hole, $dS_{2}\times S^{2}$ when the event and cosmological horizon coincide, and the Plebański- Hacyan solution for the ultraextremal black hole. A physically interesting solution describing the lukewarm black holes is briefly analyzed
dc.identifierhttps://arxiv.org/abs/0809.2275
dc.identifierhttp://arxiv.org/abs/0809.2275
dc.identifierMod.Phys.Lett.A23:3377-3392,2009
dc.identifierdoi:10.1142/S0217732308028715
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/219402
dc.subjectGeneral Relativity and Quantum Cosmology
dc.titleRegular black holes in an asymptotically de Sitter universe
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