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The thermodynamics of a magnetised Kerr-Newman black hole is studied to all orders in the appended magnetic field $B$. The asymptotic properties of the metric and other fields are dominated by the magnetic flux that extends to infinity…

高能物理 - 理论 · 物理学 2014-02-26 G. W. Gibbons , Yi Pang , C. N. Pope

In this paper, we investigate the thermodynamic properties of spherically symmetric, static black hole solutions within the framework of Conformal Killing Gravity (CKG). This is a modified theory of gravity that retains all solutions of…

广义相对论与量子宇宙学 · 物理学 2025-08-19 S. Ghaffari , G. G. Luciano

We incorporate the effect of non-local gravitational self-energy to obtain a neutral, non-singular spacetime geometry. This is achieved by using a non-local gravitational theory inspired by T-duality, where particle mass is not point-like…

广义相对论与量子宇宙学 · 物理学 2026-05-04 Kimet Jusufi , Douglas Singleton

We consider the integral light polarization from optically thick accretion disks. Basic mechanism is the multiple light scattering on free electrons (Milne's problem) in magnetized atmosphere. The Faraday rotation of the polarization plane…

星系天体物理 · 物理学 2009-08-20 N. A. Silant'ev , M. Yu. Piotrovich , Yu. N. Gnedin , T. M. Natsvlishvili

We study the quantum gravitational effects in spherically symmetric black hole spacetimes. The effective quantum spacetime felt by a point-like test mass is constructed by ``renormalization group improving'' the Schwarzschild metric. The…

高能物理 - 理论 · 物理学 2009-10-31 A. Bonanno , M. Reuter

We examine the accretion process in a thin disk surrounding a supermassive black hole within the framework of Einstein-Maxwell-scalar (EMS) gravity. Our investigation aims to elucidate how variations in model parameters affect different…

广义相对论与量子宇宙学 · 物理学 2024-10-21 Yingdong Wu , Haiyuan Feng , Wei-Qiang Chen

We purpose an approach for the thermodynamic analysis of rotating and non-linear magnetic-charged black hole with quintessence. Accordingly, we compute various thermodynamics quantities of the black hole, such as mass, temperature,…

广义相对论与量子宇宙学 · 物理学 2019-12-02 Ragil Tsafack Ndongmo , Saleh Mahamat , Thomas Bouetou Bouetou , Timoleon Crepin Kofane

We explore the thermodynamic and optical properties of Einstein-Dyonic-ModMax (EDM) black holes (BHs), incorporating quantum gravity corrections and plasma effects. The ModMax theory promotes the classical Maxwell theory to a non-linear…

广义相对论与量子宇宙学 · 物理学 2026-04-24 Erdem Sucu , Suat Dengiz , İzzet Sakallı

This work analyzes the Einstein-Gauss-Bonnet gravity of charged black hole solutions through Newman-Janis approach. The Hawking temperature for corresponding black hole is also computed. The solution depends upon rotation parameter $a$,…

广义相对论与量子宇宙学 · 物理学 2022-08-19 Riasat Ali , Rimsha Babar , Muhammad Asgher

In this paper, we utilize the effective corrections of the $\bar{\mu}$-scheme in loop quantum black holes to obtain a 4-dimensional spherically symmetric metric with a cosmological constant. By imposing the areal gauge on the components of…

广义相对论与量子宇宙学 · 物理学 2024-07-10 Jianhui Lin , Xiangdong Zhang

We investigate Einstein--Gauss--Bonnet--Maxwell massive gravity in $4D$ AdS background and find an exact black hole solution. The horizon structure of the black holes studied. Treating the cosmological constant as pressure and Gauss-Bonnet…

广义相对论与量子宇宙学 · 物理学 2023-07-19 Prosenjit Paul , Sudhaker Upadhyay , Dharm Veer Singh

In this paper, we study the physical significance of the thermodynamic volumes of AdS black holes using the Noether charge formalism of Iyer and Wald. After applying this formalism to study the extended thermodynamics of a few examples, we…

高能物理 - 理论 · 物理学 2017-04-13 Josiah Couch , Willy Fischler , Phuc H. Nguyen

This work illustrates how the formation of energy-preserving shocks for polytropic accretion and temperature-preserving shocks for isothermal accretion are influenced by various geometrical configurations of general relativistic,…

高能天体物理现象 · 物理学 2019-08-28 Pratik Tarafdar , Deepika B. Ananda , Sankhashubhra Nag , Tapas K. Das

We show that AdS black holes dual to field theories on flat spacetime, as used in applications of the AdS/CFT correspondence to strong interaction and condensed matter physics, have temperatures with positive lower bounds. There are two…

高能物理 - 理论 · 物理学 2010-12-23 Brett McInnes

We investigate the heat properties of charged AdS black holes in the Gauss-Bonnet gravity coupled with nonlinear electrodynamics. We consider the thermodynamics of black holes from the perspective of heat capacity and show that the…

广义相对论与量子宇宙学 · 物理学 2023-04-11 Yang Guo , Yan-Gang Miao

We present a systematic investigation of the thermodynamic topology for a broad class of asymptotically charged Anti-de Sitter (AdS) black holes in Einstein-Maxwell-Dilaton (EMD) theories, examining how scalar coupling parameters and…

高能物理 - 理论 · 物理学 2025-09-09 H. Babaei-Aghbolagh , Habib Esmaili , Song He , Hosein Mohammadzadeh

Recently, Rajagapol et al presented an asymptotically AdS black hole metric whose thermodynamics qualitatively mimics the behavior of the Van der Waals fluid by treating the cosmological constant as a thermodynamic pressure. In some studies…

广义相对论与量子宇宙学 · 物理学 2024-04-12 R. Oubagha , B. Hamil , M. Merad , B. C. Lütfüoğlu

Quintessential dark energy with pressure $p$ and density $\rho$ is related by equation of state $p=\omega\rho$ with the state parameter $-1<\omega<-1/3$. The cosmological dark energy influence on black hole spacetime are interesting and…

广义相对论与量子宇宙学 · 物理学 2017-03-22 Zhaoyi Xu , Jiancheng Wang

This study examines a recently hypothesized black hole, which is a perfect solution of metric-affine gravity with a positive cosmological constant, and its thermodynamic features as well as the Joule-Thomson expansion. We develop some…

广义相对论与量子宇宙学 · 物理学 2024-01-03 Muhammad Yasir , Xia Tiecheng , Faisal Javed , G. Mustafa

The thermodynamics of charged topological black holes (TBHs) with different horizon geometries in $d$-dimensional Einstein-Maxwell and 4-dimensional conformal gravities is revisited using the restricted phase space formalism. The concept of…

高能物理 - 理论 · 物理学 2023-09-27 Tao Wang , Zhiqiang Zhang , Xiangqing Kong , Liu Zhao