Results 11 to 20 of about 9,198 (296)

On the size of rotating black holes [PDF]

open access: yesEuropean Physical Journal C: Particles and Fields, 2020
Recently a sequence of inequalities relating the black hole horizon, photon sphere, shadow were proposed for spherically symmetric and static black holes, providing the upper bound for given mass.
Xing-Hui Feng, H. Lü
doaj   +4 more sources

Entropy bound of horizons for charged and rotating black holes

open access: yesPhysics Letters B, 2015
We revisit the entropy product, entropy sum and other thermodynamic relations of charged and rotating black holes. Based on these relations, we derive the entropy (area) bound for both event horizon and Cauchy horizon.
Wei Xu, Jia Wang, Xin-he Meng
doaj   +4 more sources

Rotating black holes and Coriolis effect

open access: yesPhysics Letters B, 2016
In this work, we consider the fluid/gravity correspondence for general rotating black holes. By using the suitable boundary condition in near horizon limit, we study the correspondence between gravitational perturbation and fluid equation.
Chia-Jui Chou   +3 more
doaj   +5 more sources

Regular Rotating Black Holes [PDF]

open access: yes, 2023
The collapse of astrophysically significant bodies generates, under suitable conditions, black holes. Since one expects the generator of the black hole to be a rotating body, the black hole will also rotate. The existence of inner singularities in classical solutions for rotating black holes and the fact that General Relativity is incompatible with ...
Torres Herrera, Ramon
openaire   +4 more sources

Quantum rotating black holes

open access: yesJournal of High Energy Physics, 2023
We consider black holes generically sourced by quantum matter described by regular wavefunctions. This allows for integrable effective energy densities and the removal of Cauchy horizons in spherically symmetric configurations.
Roberto Casadio   +2 more
doaj   +2 more sources

Slowly Rotating Black Holes with Nonlinear Electrodynamics [PDF]

open access: yesAdvances in High Energy Physics, 2014
We study charged slowly rotating black hole with a nonlinear electrodynamics (NED) in the presence of cosmological constant. Starting from the static solutions of Einstein-NED gravity as seed solutions, we use the angular momentum as the perturbative ...
S. H. Hendi, M. Allahverdizadeh
doaj   +2 more sources

Counter-rotating black holes from FRII lifetimes

open access: yesFrontiers in Astronomy and Space Sciences, 2023
Estimates suggest that while FRII jets appear to have lifetimes constrained to hundreds of millions of years, radio galaxies with FRI jets appear to be longer lived.
David Garofalo
doaj   +4 more sources

Jackiw-Teitelboim gravity and rotating black holes

open access: yesJournal of High Energy Physics, 2019
We show that the free energy at low temperatures for near-extremal black holes is correctly obtained from the Jackiw-Teitelboim (JT) model of gravity. Our arguments apply to all black holes, including rotating ones, whose metric has a near-horizon AdS2 ...
Upamanyu Moitra   +3 more
doaj   +3 more sources

A note on the entropy of rotating BPS AdS7 × S4 black holes

open access: yesJournal of High Energy Physics, 2018
In this note we show that the entropy of BPS, rotating, electrically charged AdS7 × S 4 black holes can be obtained by an extremization principle involving a particular combination of anomaly coefficients of the six-dimensional N=20 $$ \mathcal{N}=\left ...
Seyed Morteza Hosseini   +2 more
doaj   +3 more sources

Holographic complexity of rotating quantum black holes

open access: yesJournal of High Energy Physics
We study holographic complexity for the rotating quantum BTZ black holes (quBTZ), the BTZ black holes with corrections from bulk quantum fields. Using double holography, the combined system of backreacted rotating BTZ black holes with conformal matters ...
Bin Chen, Yuefeng Liu, Boyang Yu
doaj   +2 more sources

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