scholarly journals Einstein–Maxwell Dirichlet walls, negative kinetic energies, and the adiabatic approximation for extreme black holes

2015 ◽  
Vol 32 (19) ◽  
pp. 195017 ◽  
Author(s):  
Tomás Andrade ◽  
William R Kelly ◽  
Donald Marolf
Keyword(s):  
Black Holes ◽  
Adiabatic Approximation ◽  
Extreme Black Holes

scholarly journals Transient scalar hair for nearly extreme black holes

2019 ◽  
Vol 1 (3) ◽  
Author(s):  
Lior M. Burko ◽  
Gaurav Khanna ◽  
Subir Sabharwal
Keyword(s):  
Black Holes ◽  
Scalar Hair ◽  
Extreme Black Holes

The effect of dark matter on the weak cosmic censorship conjecture in the extended space

2021 ◽  
pp. 2150207
Author(s):  
Zi-Yu Fu ◽  
Bao-Qi Zhang ◽  
Chuan-Yin Wang ◽  
Hui-Ling Li
Keyword(s):  
Black Holes ◽  
Black Hole ◽  
Dark Matter ◽  
Second Law Of Thermodynamics ◽  
Cosmic Censorship ◽  
De Sitter ◽  
Extended Phase ◽  
Extended Space ◽  
Extreme Black Holes ◽  
Cosmic Censorship Conjecture

By analyzing the energy–momentum relationship of the absorbed fermions dropping into a Reissner–Nordstöm–anti-de Sitter black hole surrounded by dark matter, the laws of thermodynamic and weak cosmic censorship conjecture in the extended phase space are investigated. We find that the first law of thermodynamics is valid. However, the validity of the second law of thermodynamics depends on the density [Formula: see text] of the perfect fluid dark matter. In addition, we also find that when the fermions are absorbed, the structures of black hole surrounded by dark matter would not change. Therefore, weak cosmic censorship conjecture holds for the extreme black holes and the non-extreme black holes.

scholarly journals Vortices and extreme black holes: The question of flux expulsion

1999 ◽  
Vol 59 (8) ◽  
Author(s):  
Filipe Bonjour ◽  
Roberto Emparan ◽  
Ruth Gregory
Keyword(s):  
Black Holes ◽  
Flux Expulsion ◽  
Extreme Black Holes
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