2025
Regular Schwarzschild black holes and cosmological models
CASADIO, Roberto; Alexander KAMENSHCHIK and Jorge Iván OVALLE ARAYABasic information
Original name
Regular Schwarzschild black holes and cosmological models
Authors
CASADIO, Roberto; Alexander KAMENSHCHIK and Jorge Iván OVALLE ARAYA
Edition
Physical Review D, 2025, 2470-0010
Other information
Language
English
Type of outcome
Article in a journal
Field of Study
10308 Astronomy
Country of publisher
United States of America
Confidentiality degree
is not subject to a state or trade secret
References:
Impact factor
Impact factor: 5.300 in 2024
Organization unit
Institute of physics in Opava
UT WoS
001459607900008
EID Scopus
2-s2.0-86000500937
Keywords in English
general relativity; Kantowski-Sachs universe; mass inflation
Tags
International impact, Reviewed
Changed: 26/1/2026 10:51, Mgr. Pavlína Jalůvková
Abstract
In the original language
We study regular Schwarzschild black holes in general relativity as an alternative to the singular counterpart. We analyze two types of solutions which are completely parametrized by the Arnowitt-Deser- Misner mass alone. We find that both families of regular solutions contain a de Sitter condensate at the core and admit (quasi) extremal black hole configurations in which the two horizons are arbitrarily close. Cosmological models based on these regular configurations are also analyzed, finding that they describe nontrivial Kantowski-Sachs universes free of singularities.