scholarly journals Stationary massive disks around black holes: Realistic equation of state and bifurcation

2021 ◽  
Vol 104 (2) ◽  
Author(s):  
Wojciech Kulczycki ◽  
Patryk Mach ◽  
Edward Malec
Keyword(s):  
Black Holes ◽  
Equation Of State

scholarly journals Equation of state for a classical gas of BPS black holes

2001 ◽  
Vol 64 (10) ◽  
Author(s):  
Nahomi Kan ◽  
Takuya Maki ◽  
Kiyoshi Shiraishi
Keyword(s):  
Black Holes ◽  
Equation Of State ◽  
Classical Gas

OF CHARGED STARS AND CHARGED BLACK HOLES

2004 ◽  
Vol 13 (07) ◽  
pp. 1375-1379 ◽  
Author(s):  
MANUEL MALHEIRO ◽  
RODRIGO PICANÇO ◽  
SUBHARTHI RAY ◽  
JOSÉ P. S. LEMOS ◽  
VILSON T. ZANCHIN
Keyword(s):  
Black Holes ◽  
Black Hole ◽  
Charged Particle ◽  
Equation Of State ◽  
Mass Density ◽  
Compact Star ◽  
Maximum Amount ◽  
Stellar Structure ◽  
Charged Black Holes ◽  
Polytropic Equation

Effect of maximum amount of charge a compact star can hold, is studied here. We analyze the different features in the renewed stellar structure and discuss the reasons why such huge charge is possible inside a compact star. We studied a particular case of a polytropic equation of state (EOS) assuming the charge density is proportional to the mass density. Although the global balance of force allows a huge charge, the electric repulsion faced by each charged particle forces it to leave the star, resulting in the secondary collapse of the system to form a charged black hole.

Stability of charged Kiselev thin-shell wormholes

2020 ◽  
Vol 35 (02n03) ◽  
pp. 2040015
Author(s):  
Muhammad Sharif ◽  
Faisal Javed
Keyword(s):  
Black Holes ◽  
Equation Of State ◽  
Thin Shell ◽  
Unstable Behavior ◽  
Wormhole Throat ◽  
Barotropic Equation ◽  
Thin Shell Wormholes ◽  
The Stability

This work is devoted to exploring the stability of thin-shell wormholes developed from two equivalent copies of charged quintessence (charged Kiselev) black holes by using Visser cut and paste approach. The characteristics of the surface matter of the shell are determined by using Israel formalism. We examine the stability of thin-shell by assuming a barotropic equation of state for the surface matter of the wormhole throat. We conclude that wormhole becomes stable in the presence of both charge and Kiselev parameter otherwise, it shows an unstable behavior.

scholarly journals Extracting equation of state parameters from black hole-neutron star mergers: Aligned-spin black holes and a preliminary waveform model

2014 ◽  
Vol 89 (4) ◽  
Author(s):  
Benjamin D. Lackey ◽  
Koutarou Kyutoku ◽  
Masaru Shibata ◽  
Patrick R. Brady ◽  
John L. Friedman
Keyword(s):  
Black Holes ◽  
Black Hole ◽  
Neutron Star ◽  
Equation Of State

Stability of a charged rotating BTZ thin shell with a different variable equation of state

2021 ◽  
pp. 2150086
Author(s):  
A. Eid
Keyword(s):  
Black Holes ◽  
Equation Of State ◽  
Thin Shell ◽  
Mechanical Stability ◽  
Chaplygin Gas ◽  
Throat Radius ◽  
Generalized Chaplygin Gas ◽  
Radial Perturbation ◽  
Btz Black Holes ◽  
Variable Equation

Dynamics of charged rotating BTZ black holes in 2 + 1 dimensions by using the cut and paste approach is discussed. Due to the mechanical stability of rotating charged BTZ thin shell, the radial perturbation about the equilibrium throat radius and three variable equation of state (EoS) is analyzed. Several examples are displayed satisfying it, such as variable Phantom-like, variable Chaplygin gas and variable modified generalized Chaplygin gas.

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