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相关论文: Letelier black hole immersed in an electromagnetic…

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We present an investigation of a static, spherically symmetric Letelier black hole (BH) immersed in an electromagnetic universe (EMU), characterized by the cloud of strings (CoS) parameter $\alpha$ and the EMU parameter $a$. The photon…

广义相对论与量子宇宙学 · 物理学 2025-12-23 İzzet Sakallı , Erdem Sucu , Ahmad Al-Badawi , Faizuddin Ahmed

This study investigates a Schwarzschild-anti de Sitter black hole coupled to a cloud of strings featuring only the electric-like component of the string bivector, embedded in a perfect fluid dark matter and a quintessence field. We examine…

广义相对论与量子宇宙学 · 物理学 2025-10-28 Faizuddin Ahmed , Edilberto O. Silva

In this paper, we examine the geodesic and thermodynamic properties of a Schwarzschild black hole with a cloud of strings (known as the Letelier black hole) immersed in a King dark matter (KDM) halo under an isotropic configuration. The…

广义相对论与量子宇宙学 · 物理学 2025-10-21 Faizuddin Ahmed , Edilberto O. Silva

We construct a new family of regular black hole solutions supported by the novel Letelier-Alencar string cloud and regularized through a rational Dagum-type distribution. The regulator smooths the matter profile and ensures finite curvature…

We construct a static, spherically symmetric black hole (BH) solution embedded in a cored Plummer dark matter (DM) halo and a Letelier cloud of strings (CoS). Starting from the Plummer-Schwarzschild metric of Senjaya et…

广义相对论与量子宇宙学 · 物理学 2026-04-03 Ahmad Al-Badawi , Faizuddin Ahmed , İzzet Sakallı

In this paper, we theoretically investigate the deflection of light, lensing equations, topological properties of photon rings, and accretion disk characteristics in the spacetime of a holonomy-corrected Schwarzschild black hole surrounded…

广义相对论与量子宇宙学 · 物理学 2025-09-10 Faizuddin Ahmed , Shubham Kala

In this work, we investigate relativistic tidal forces around a black hole sourced by a cloud of strings, described by the generalized Letelier-Alencar solution. We first review the original Letelier spacetime and its recent generalization,…

广义相对论与量子宇宙学 · 物理学 2026-03-25 Marcos V. de S. Silva , T. M. Crispim , R. R. Landim , Gonzalo J. Olmo , Diego Sáez-Chillón Gómez

We obtain the solution corresponding to a static and spherically symmetric black hole with a cloud of strings (Letelier spacetime) immersed in a quintessential fluid. We discuss some aspects of its thermodynamics. We also present a…

广义相对论与量子宇宙学 · 物理学 2019-03-08 Marco M. Dias e Costa , J. M. Toledo , V. B. Bezerra

This manuscript investigates a Schwarzschild black hole surrounded by perfect fluid dark matter embedded in a cloud of strings. The effects of its surroundings on thermodynamics, timelike and null geodesics, shadows, and quasinormal modes…

广义相对论与量子宇宙学 · 物理学 2025-03-28 Bilel Hamil , Bekir Can Lütfüoğlu

In this study, we investigate the motion of charged, neutral, and light-like particles in a magnetized black hole solution surrounded by a cloud of strings in an anti-de Sitter (AdS) background. This spacetime admits several well-known…

广义相对论与量子宇宙学 · 物理学 2025-05-15 Ahmad Al-Badawi , Faizuddin Ahmed , İzzet Sakallı , Sanjar Shaymatov

We obtain a black hole solution in the Einstein-Gauss-Bonnet theory for the string cloud model in a five dimensional spacetime. We analyze the event horizons and naked singularities. Later, we compute the Hawking temperature…

高能物理 - 理论 · 物理学 2016-08-14 Estanislao Herscovich , Martín G. Richarte

We obtain the solution of a static spherically symmetric black hole surrounded by a cloud of strings in Rastall gravity and study the influence of the parameter $a$ associated with strings on the event horizon and the Hawking temperature.…

高能物理 - 理论 · 物理学 2020-05-14 Xin-Chang Cai , Yan-Gang Miao

We investigate the geodesic motion of test particles around a charged Euler-Heisenberg Anti-de Sitter black hole (CEH-AdS-BH) with a cloud of strings (CoS) and surrounded by perfect fluid dark matter (PFDM). Our analysis examines how the…

广义相对论与量子宇宙学 · 物理学 2025-09-17 Faizuddin Ahmed , Ahmad Al-Badawi , İzzet Sakallı

We construct an exact black hole solution for the Einstein gravity coupled with the nonlinear electrodynamics (which corresponds to the Maxwell electrodynamics in the weak field limit) in the presence of a cloud of strings as the source. We…

广义相对论与量子宇宙学 · 物理学 2022-11-18 Dharm Veer Singh , Aradhya Shukla , Sudhaker Upadhyay

In this study, we examine quantum Oppenheimer-Snyder black holes (BHs) embedded within a cloud of strings and immersed in perfect fluid dark matter. Also, beginning with the underlying spacetime geometry, we determine how quantum…

广义相对论与量子宇宙学 · 物理学 2026-02-27 Faizuddin Ahmed , Allan R. P. Moreira , Abdelmalek Bouzenada

In this paper, we consider a static spherically symmetric black hole (BH) embedded in a Dehnen-(1,4,0) type dark matter (DM) halo in the presence of a cloud string. We examine and present data on how the core density of the DM halo…

广义相对论与量子宇宙学 · 物理学 2024-12-31 Ahmad Al-Badawi , Sanjar Shaymatov

This work aims to explore the gravitational consequences of a recently proposed black hole solution presented in the literature [Phys. Dark Univ. 50 (2025) 102061]. We initiate our analyzes by taking into account the horizon structure,…

广义相对论与量子宇宙学 · 物理学 2025-09-18 A. A. Araújo Filho , N. Heidari , Iarley P. Lobo

This paper revisits black hole solutions surrounded by clouds and fluids of strings within the framework of general relativity. We introduce a generalized equation of state for a fluid of strings with a variable parameter and derive a…

广义相对论与量子宇宙学 · 物理学 2025-02-25 Luis Cesar Nunes dos Santos

We present an investigation of quantum-corrected black hole spacetimes coupled with clouds of strings, examining two distinct theoretical models that incorporate quantum gravitational effects through different implementations of correction…

高能天体物理现象 · 物理学 2025-10-30 Faizuddin Ahmed , Ahmad Al-Badaw , Orhan Donmez , Izzet Sakalli , Saeed Noori Gashti , Behnam Pourhassan , Fatih Dogan

In this work, we probe the weak gravitational lensing by a static spherically symmetric black hole in view of $f(R)$ gravity in the background of the non-plasma medium (vacuum). We provide a discussion on a light ray in a static black hole…

广义相对论与量子宇宙学 · 物理学 2023-11-01 Surajit Mandal
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