OVALLE ARAYA, Jorge Iván, R. CASADIO, E. CONTRERAS and A. SOTOMAYOR. Hairy black holes by gravitational decoupling. Physics of the Dark Universe. Netherlands, 2021, vol. 31, January, p. "100744-1"-"100744-10", 10 pp. ISSN 2212-6864. Available from: https://dx.doi.org/10.1016/j.dark.2020.100744.
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Basic information
Original name Hairy black holes by gravitational decoupling
Authors OVALLE ARAYA, Jorge Iván (152 Chile, belonging to the institution), R. CASADIO, E. CONTRERAS and A. SOTOMAYOR.
Edition Physics of the Dark Universe, Netherlands, 2021, 2212-6864.
Other information
Original language English
Type of outcome Article in a journal
Field of Study 10308 Astronomy
Country of publisher Netherlands
Confidentiality degree is not subject to a state or trade secret
WWW URL
RIV identification code RIV/47813059:19630/21:A0000170
Organization unit Institute of physics in Opava
Doi http://dx.doi.org/10.1016/j.dark.2020.100744
UT WoS 000630235100004
Keywords in English MINIMAL GEOMETRIC DEFORMATION;CHARGED COMPACT STAR;BRANE-WORLD STARS;ANISOTROPIC SOLUTIONS;GENERAL-RELATIVITY;SPACE-TIME;MODELS
Tags 2022, FÚ, RIV22
Tags International impact, Reviewed
Changed by Changed by: Mgr. Pavlína Jalůvková, učo 25213. Changed: 11/3/2022 11:40.
Abstract
Black holes with hair represented by generic fields surrounding the central source of the vacuum Schwarzschild metric are examined under the minimal set of requirements consisting of (i) the existence of a well defined event horizon, namely, we require the Killing horizon coincides with the causal horizon and (ii) the strong or dominant energy condition for the hair outside the horizon. We develop our analysis by means of the gravitational decoupling approach. We find that trivial deformations of the seed Schwarzschild vacuum preserve the energy conditions and provide a new mechanism to evade the no-hair theorem based on a primary hair associated with the charge generating these transformations. Under the above conditions (i) and (ii), this charge consistently increases the entropy from the minimum value given by the Schwarzschild geometry. As a direct application, we find a non-trivial extension of the Reissner-Nordstrom black hole showing a surprisingly simple horizon. Finally, the non-linear electrodynamics generating this new solution is fully specified.
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