Results 21 to 30 of about 6,012 (165)

Slowly Rotating Black Holes with Nonlinear Electrodynamics

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   +1 more source

Rotating regular black hole solution [PDF]

open access: yesPhysical Review D, 2014
Based on the Newman-Janis algorithm the Ayon-Beato-Garcia spacetime metric of the regular spherically symmetric, static and charged black hole has been converted into rotational form. It is shown that the derived solution for rotating regular black hole is regular and the critical value of the electric charge $Q$ for which two horizons merge into one ...
Toshmatov, Bobir   +3 more
openaire   +2 more sources

On the size of rotating black holes

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   +1 more source

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   +1 more source

BLACK HOLE AURORA POWERED BY A ROTATING BLACK HOLE [PDF]

open access: yesThe Astrophysical Journal, 2010
9 pages, 3 figures, accepted to ...
Takahashi, Masaaki, Takahashi, Rohta
openaire   +2 more sources

From rotating to charged black holes and back again

open access: yesJournal of High Energy Physics, 2022
The mild form of the Weak Gravity Conjecture (WGC) requires higher derivative corrections to extremal charged black holes to increase their charge-to-mass ratio. This allows decay via emission of a smaller extremal black hole.
Lars Aalsma, Gary Shiu
doaj   +1 more source

Thermodynamic Curvature of AdS Black Holes with Dark Energy

open access: yesFrontiers in Physics, 2021
In this paper, we study the effect of dark energy on the extended thermodynamic structure and interacting microstructures of black holes in AdS, through an analysis of thermodynamic geometry.
Aditya Singh   +2 more
doaj   +1 more source

Universal thermodynamic topological classes of rotating black holes

open access: yesPhysics Letters B
In a recent study, Wei et al. (2024) [96] proposed a universal classification scheme that interprets black hole solutions, including the four-dimensional Schwarzschild, Reissner-Nordström (RN), Schwarzschild-AdS, and RN-AdS black hole solutions, as ...
Xiao-Dan Zhu, Wentao Liu, Di Wu
doaj   +1 more source

Effects of (un)usual asymptotics on shadows and lensing of rotating black holes: Numerical and perturbative treatments

open access: yesPhysics Letters B
We consider the slowly rotating black hole with non-flat, non-(A)dS asymptotics and the rotating black holes with AdS asymptotics in the Einstein-Maxwell-dilaton (EMD) theory, and compare the shadows for such black holes with the Kerr-Newman-AdS black ...
Yong-Zhuang Li, Xiao-Mei Kuang
doaj   +1 more source

Quest for realistic non-singular black-hole geometries: regular-center type

open access: yesJournal of High Energy Physics, 2022
We propose seven criteria to single out physically reasonable non-singular black-hole models and adopt them to four different spherically symmetric models with a regular center and their rotating counterparts. In general relativity, all such non-singular
Hideki Maeda
doaj   +1 more source

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