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In general relativity, the gyromagnetic ratio for all stationary, axisymmetric and asymptotically flat Einstein-Maxwell fields is known to be g=2. In this paper, we continue our previous works of examination this result for rotating charged…

High Energy Physics - Theory · Physics 2008-11-26 Alikram N. Aliev

We construct the perturbative solution of the charged black hole in the Kaluza-Klein spacetime with the matched asymptotic expansion method. The corrections to the thermodynamic variables are calculated up to the post-Newtonian order. We…

High Energy Physics - Theory · Physics 2013-05-30 Ryotaku Suzuki , Shunichiro Kinoshita , Tetsuya Shiromizu

We present a Kerr-Newman type stationary and axisymmetric solution that describes rotating black holes with a tidal charge in the Randall-Sundrum braneworld. The tidal charge appears as an imprint of nonlocal gravitational effects from the…

Astrophysics · Physics 2007-05-23 Alikram N. Aliev

The cosmological black holes are black holes living not in an asymptotically flat universe but in an expanding spacetime. They have a rich dynamics in particular for their mass and horizon. In this article we perform a natural step in…

General Relativity and Quantum Cosmology · Physics 2017-11-15 Rahim Moradi , Clément Stahl , Javad T. Firouzjaee , She-Sheng Xue

With the help of Newman-Janis method new spinning black hole (BH) solution for a non-local gravity model was obtained. We show how to account the quantum gravitational correction part in BH shadows modelling using spinning BH metrics with a…

General Relativity and Quantum Cosmology · Physics 2024-04-26 Stanislav Alexeyev , Artem Baiderin , Alexandra Nemtinova , Oleg Zenin

We identify a set of higher-derivative extensions of Einstein-Maxwell theory that allow for spherically symmetric charged solutions characterized by a single metric function $f(r)=-g_{tt}=1/g_{rr}$. These theories are a non-minimally…

High Energy Physics - Theory · Physics 2021-04-26 Pablo A. Cano , Ángel Murcia

We consider theories with gravity, gauge fields and scalars in four-dimensional asymptotically flat space-time. By studying the equations of motion directly we show that the attractor mechanism can work for non-supersymmetric extremal black…

High Energy Physics - Theory · Physics 2009-11-11 Kevin Goldstein , Norihiro Iizuka , Rudra P. Jena , Sandip P. Trivedi

We investigate the shadow properties of a rotating black hole with a weakly coupled global monopole charge, using a modified Newman-Janis algorithm. This study explores how this charge and rotational effects shape the black hole's shadow,…

General Relativity and Quantum Cosmology · Physics 2025-03-28 Mohsen Fathi

This paper presents a new metric for slowly rotating charged Gauss-Bonnet black holes in higher dimensional anti-de Sitter spaces. Taking the angular momentum parameter $a$ up to second order, the slowly rotating charged black hole…

General Relativity and Quantum Cosmology · Physics 2015-05-28 De-Cheng Zou , Zhan-Ying Yang , Rui-Hong Yue , Tian-Yi Yu

We consider Einstein-Maxwell gravity in diverse dimensions and construct the small charge perturbation to the extremal rotating black holes with all equal angular momenta in odd $D=2n+1$ dimensions. Exact solutions exist at the…

High Energy Physics - Theory · Physics 2025-12-18 Qi-Yuan Mao , H. Lu

In this work we derived a rotating and non-linear magnetic-charged black hole surrounded by quintessence using the Newman-Janis algorithm. Considering the state parameter $\omega_q=-3/2$, we studied the event horizons, the ergosphere, and…

General Relativity and Quantum Cosmology · Physics 2020-02-21 Carlos A. Benavides-Gallego , A. A. Abdujabbarov , Cosimo Bambi

By using a new approach, we demonstrate analytic expressions for slowly rotating Gauss-Bonnet charged black holes with negative cosmological constant. Up to the linear order of the rotating parameter a, the mass, Hawking temperature and…

General Relativity and Quantum Cosmology · Physics 2011-10-04 De-Cheng Zou , Zhan-Ying Yang , Rui-Hong Yue

We construct asymptotically flat black hole solutions of Einstein-scalar gravity sourced by a nontrivial scalar field with 1/r asymptotic behaviour. Near the singularity the black hole behaves as the Janis-Newmann-Winicour-Wyman solution.…

General Relativity and Quantum Cosmology · Physics 2015-10-08 Mariano Cadoni , Edgardo Franzin

We consider the non-extremal, charged, rotating black hole solution of five dimensional minimal gauged supergravity of Cvetic, Lu and Pope [Phys.Lett. B 598 (2004) 273]. We compute the Ashtekar-Magnon-Das mass and show it agrees with the…

High Energy Physics - Theory · Physics 2010-04-05 Hari K. Kunduri , James Lucietti

By considering charged black hole solutions of a one parameter family of two dimensional dilaton gravity theories, one finds the existence of quantum mechanically stable gravitational kinks with a simple mass to charge relation. Unlike…

General Relativity and Quantum Cosmology · Physics 2009-10-28 R. Balbinot , A. Fabbri

We investigate static and rotating charged spherically symmetric solutions in the framework of $f({\cal R})$ gravity, allowing additionally the electromagnetic sector to depart from linearity. Applying a convenient, dual description for the…

General Relativity and Quantum Cosmology · Physics 2021-01-04 G. G. L. Nashed , Emmanuel N. Saridakis

After many years of efforts, the first nonlinearly charged rotating black hole has been finally reported by Garcia-Diaz in two recent works. This is an important result that was pending in General Relativity, since nonlinear generalizations…

General Relativity and Quantum Cosmology · Physics 2022-03-28 Eloy Ayón-Beato

We consider asymptotically AdS, non-extremal, charged and rotating black holes with rotation in a single 2-plane and two independent U(1) charge parameters. Using a common ansatz, solutions are found for 5-dimensional U(1)^3 gauged…

High Energy Physics - Theory · Physics 2011-08-26 David D. K. Chow

In this paper, we study slowly rotating black hole solutions in Lovelock gravity (n=3). These exact slowly rotating black hole solutions are obtained in uncharged and charged cases, respectively. Up to the linear order of the rotating…

General Relativity and Quantum Cosmology · Physics 2011-10-04 Rui-Hong Yue , De-Cheng Zou , Tian-Yi Yu , Peng Li , Zhan-Ying Yang

In this paper, we present charged spherically symmetric black hole solutions and slowly rotating charged solutions in bumblebee gravity with and without a cosmological constant. The static spherically symmetric solutions describe the…

General Relativity and Quantum Cosmology · Physics 2025-03-25 Jia-Zhou Liu , Wen-Di Guo , Shao-Wen Wei , Yu-Xiao Liu