Hairy black holes by gravitational decoupling

@article{59503,
   author = {Ovalle Araya, Jorge Iván and Casadio, R. and Contreras, E. and Sotomayor, A.},
   article_location = {Netherlands},
   article_number = {January},
   doi = {http://dx.doi.org/10.1016/j.dark.2020.100744},
   keywords = {MINIMAL GEOMETRIC DEFORMATION;CHARGED COMPACT STAR;BRANE-WORLD STARS;ANISOTROPIC SOLUTIONS;GENERAL-RELATIVITY;SPACE-TIME;MODELS},
   language = {eng},
   issn = {2212-6864},
   journal = {Physics of the Dark Universe},
   title = {Hairy black holes by gravitational decoupling},
   url = {https://www.sciencedirect.com/science/article/pii/S221268642030457X?via%3Dihub},
   volume = {31},
   year = {2021}
}

TY  - JOUR
ID  - 59503
AU  - Ovalle Araya, Jorge Iván - Casadio, R. - Contreras, E. - Sotomayor, A.
PY  - 2021
TI  - Hairy black holes by gravitational decoupling
JF  - Physics of the Dark Universe
VL  - 31
IS  - January
SP  - "100744-1"-"100744-10"
EP  - "100744-1"-"100744-10"
SN  - 22126864
KW  - MINIMAL GEOMETRIC DEFORMATION;CHARGED COMPACT STAR;BRANE-WORLD STARS;ANISOTROPIC SOLUTIONS;GENERAL-RELATIVITY;SPACE-TIME;MODELS
UR  - https://www.sciencedirect.com/science/article/pii/S221268642030457X?via%3Dihub
N2  - 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.
ER  - 

OVALLE ARAYA, Jorge Iván, R. CASADIO, E. CONTRERAS a A. SOTOMAYOR. Hairy black holes by gravitational decoupling. \textit{Physics of the Dark Universe}. Netherlands, 2021, roč.~31, January, s.~''100744-1''-''100744-10'', 10 s. ISSN~2212-6864. Dostupné z: https://dx.doi.org/10.1016/j.dark.2020.100744.