Regular black holes and black universes

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dc.creatorBronnikov, K. A.
dc.creatorDehnen, H.
dc.creatorMelnikov, V. N.
dc.date2006-11-03
dc.date2006-11-12
dc.date.accessioned2026-07-07T10:41:06Z
dc.date.available2026-07-07T10:41:06Z
dc.descriptionWe give a comparative description of different types of regular static, spherically symmetric black holes (BHs) and discuss in more detail their particular type, which we suggest to call black universes. The latter have a Schwarzschild-like causal structure, but inside the horizon there is an expanding Kantowski-Sachs universe and a de Sitter infinity instead of a singularity. Thus a hypothetic BH explorer gets a chance to survive. Solutions of this kind are naturally obtained if one considers static, spherically symmetric distributions of various (but not all) kinds of phantom matter whose existence is favoured by cosmological observations. It also looks possible that our Universe has originated from phantom-dominated collapse in another universe and underwent isotropization after crossing the horizon. An explicit example of a black-universe solution with positive Schwarzschild mass is discussed.
dc.description13 pages, 1 figure. 6 referenses and some discussion added, misprints corrected
dc.identifierhttps://arxiv.org/abs/gr-qc/0611022
dc.identifierhttp://arxiv.org/abs/gr-qc/0611022
dc.identifierGen.Rel.Grav.39:973-987,2007
dc.identifierdoi:10.1007/s10714-007-0430-6
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/181526
dc.subjectGeneral Relativity and Quantum Cosmology
dc.titleRegular black holes and black universes
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