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相关论文: Bardeen-de Sitter black holes

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In this report the exact rotating charged black hole solution to the Einstein--nonlinear electrodynamics theory with a cosmological constant is presented. This black hole is equipped with mass, rotation parameter, electric and magnetic…

广义相对论与量子宇宙学 · 物理学 2022-05-25 Alberto A. García Díaz

We construct black hole solutions to Einstein-Born-Infeld gravity with a cosmological constant. Since an elliptic function appears in the solutions for the metric, we construct horizons numerically. The causal structure of these solutions…

高能物理 - 理论 · 物理学 2008-11-26 Sharmanthie Fernando , Don Krug

We discuss the existence, stability and classical thermodynamics of four-dimensional, spherically symmetric black hole solutions of the Einstein equations with a conformally coupled scalar field. We review the solutions existing in the…

广义相对论与量子宇宙学 · 物理学 2007-05-23 Elizabeth Winstanley

Numerical arguments are presented for the existence of spherically symmetric regular and black hole solutions of the EYMH equations with a negative cosmological constant. These solutions approach asymptotically the anti-de Sitter spacetime.…

广义相对论与量子宇宙学 · 物理学 2009-11-07 J. J. van der Bij , Eugen Radu

A regular static, spherically symmetric electrically charged black hole solution of general relativity coupled to a new theory for nonlinear electrodynamics is presented. This theory has the interesting feature that, at far distances from…

高能物理 - 理论 · 物理学 2021-08-27 Mohammad Bagher Jahani Poshteh , Nematollah Riazi

We study a solution of the Einstein's equations generated by a self-gravitating, anisotropic, static, non-singular matter fluid. The resulting Schwarzschild like solution is regular and accounts for smearing effects of noncommutative…

高能物理 - 理论 · 物理学 2015-02-05 Antonia Micol Frassino

We obtain an exact solution of Einstein's equations for a charged, static and spherically symmetric body, surrounded by a fluid of strings and with a cosmological constant. This corresponds to the Reissner-Nordstr\"om (de Sitter)-Anti de…

广义相对论与量子宇宙学 · 物理学 2020-12-30 J. M. Toledo , V. B. Bezerra

Since the Brans-Dicke theory is conformal related to the dilaton gravity theory, by applying a conformal transformation to the dilaton gravity theory, we derived the cosmological constant term in the Brans-Dicke theory and the physical…

广义相对论与量子宇宙学 · 物理学 2007-05-23 C. J. Gao , S. N. Zhang

A nonlinear charged version of the (2+1)-anti de Sitter black hole solution is derived. The source to the Einstein equations is a Born-Infeld electromagnetic field, which in the weak field limit becomes the (2+1)-Maxwell field. The obtained…

高能物理 - 理论 · 物理学 2009-10-31 Mauricio Cataldo , Alberto Garcia

We present a new explicit class of black holes in general quadratic gravity with a cosmological constant. These spherically symmetric Schwarzschild-Bach-(anti-)de Sitter geometries (Schwa-Bach-(A)dS), derived under the assumption of…

广义相对论与量子宇宙学 · 物理学 2018-12-10 Robert Svarc , Jiri Podolsky , Vojtech Pravda , Alena Pravdova

We obtained new hairy black hole solutions in Einstein-scalar theory, including asymptotic flat, de Sitter and anti-de Sitter black holes. The theory is inspired by Ref. [1], where traversable wormhole solutions from an Einstein-phantom…

广义相对论与量子宇宙学 · 物理学 2024-03-19 Xiao-Ping Rao , Hyat Huang , Jinbo Yang

It is shown that Schwarzschild black hole and de Sitter solutions exist as exact solutions of a recently proposed relativistic covariant formulation of (power-counting) renormalizable gravity with a fluid. The formulation without a fluid is…

高能物理 - 理论 · 物理学 2011-03-22 G. Cognola , E. Elizalde , L. Sebastiani , S. Zerbini

We present arguments for the existence of charged, rotating black holes in $d=2N+1$ dimensions, with $d\geq 5$ with a positive cosmological constant. These solutions posses both, a regular horizon and a cosmological horizon of spherical…

广义相对论与量子宇宙学 · 物理学 2008-11-26 Y. Brihaye , T. Delsate

We consider a class of black hole solutions to Einstein's equations in d dimensions with a negative cosmological constant. These solutions have the property that the horizon is a (d-2)-dimensional Einstein manifold of positive, zero, or…

高能物理 - 理论 · 物理学 2009-10-31 Danny Birmingham

In this article, we investigate the impact of cosmological parameters on black holes using an exact solution to Einstein's equations that satisfies the Whittaker equation of state. We examine a spherically symmetric black hole in the…

广义相对论与量子宇宙学 · 物理学 2024-04-26 Santanu Tripathy , K Rajesh Nayak

We consider static circularly symmetric solution of three-dimensional Einstein's equations with negative cosmological constant (the BTZ black hole). The case of zero cosmological constant corresponding to the interior region of a black hole…

广义相对论与量子宇宙学 · 物理学 2008-11-26 G. de Berredo-Peixoto , M. O. Katanaev

We present arguments for the existence of both globally regular and black hole solutions of the Einstein equations with a conformally coupled scalar field, in the presence of a negative cosmological constant, for space-time dimensions…

广义相对论与量子宇宙学 · 物理学 2009-11-11 Eugen Radu , Elizabeth Winstanley

Static, spherically symmetric solutions of the field equations for a particular dimensional continuation of general relativity with negative cosmological constant are studied. The action is, in odd dimensions, the Chern-Simons form for the…

广义相对论与量子宇宙学 · 物理学 2009-10-22 Maximo Banados , Claudio Teitelboim , Jorge Zanelli

We have obtained a new exact regular black hole solution for the EGB gravity coupled with nonlinear electrodynamics in AdS space. The numerical analysis of horizon structure suggests two horizons exist: Cauchy and event. We also study the…

广义相对论与量子宇宙学 · 物理学 2023-12-08 Amit Kumar , Dharm Veer Singh , Yerlan Myrzakulov , Gulmira Yergaliyeva , Sudhaker Upadhyay

In the light of the "no-hair" conjecture, we revisit stable black holes in su(N) Einstein-Yang-Mills theory with a negative cosmological constant. These black holes are endowed with copious amounts of gauge field hair, and we address the…

广义相对论与量子宇宙学 · 物理学 2015-06-04 Ben L. Shepherd , Elizabeth Winstanley