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相关论文: Charged Anisotropic Tolman IV Solution in Matter-G…

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In this paper, we develop two anisotropic solutions for static self-gravitating spherical structure in the presence of electromagnetic field through gravitational decoupling approach in $f(G,T)$ theory, where $G$ and $T$ denote the…

广义相对论与量子宇宙学 · 物理学 2022-11-04 M. Sharif , Komal Hassan

In this article, we studied the behavior of relativistic spherical objects considering Tolman IV spacetime in modified $f(R,\,T)$ gravity for the uncharged perfect fluid matter. We have chosen the matter Lagrangian as $\mathcal{L}_m=-p$ to…

广义相对论与量子宇宙学 · 物理学 2022-05-03 Piyali Bhar , Pramit Rej , M. Zubair

We investigate a compact spherically symmetric relativistic body with anisotropic particle pressure profiles. The distribution possesses characteristics relevant to modeling compact stars within the framework of general relativity. For this…

广义相对论与量子宇宙学 · 物理学 2018-02-28 S. K. Maurya , Ayan Banerjee , Sudan Hansraj

In this paper, we investigate the effects of electromagnetic field on the isotropic spherical gravastar models in metric $f(R,T)$ gravity. For this purpose, we have explored singularity-free exact models of relativistic spheres with a…

广义相对论与量子宇宙学 · 物理学 2020-03-03 Z. Yousaf , Kazuharu Bamba , M. Z. Bhatti , U. Ghafoor

In this paper, we consider static spherical structure to develop some anisotropic solutions by employing the extended gravitational decoupling scheme in the background of…

广义相对论与量子宇宙学 · 物理学 2023-02-10 M. Sharif , Tayyab Naseer

We find new exact solutions to the Einstein-Maxwell field equations which are relevant in the description of highly compact stellar objects. The relativistic star is charged and anisotropic with a quark equation of state. Exact solutions of…

广义相对论与量子宇宙学 · 物理学 2017-01-04 D. Kileba Matondo , S. D. Maharaj

In this article, we provide a new model of static charged anisotropic fluid sphere made of a charged perfect fluid in the context of 5D Einstein-Maxwell-Gauss-Bonnet (EMGB) gravity theory. To generate exact solutions of the EMGB field…

广义相对论与量子宇宙学 · 物理学 2023-05-12 Pramit Rej , Abdelghani Errehymy , Mohammed Daoud

A new model of charged compact star is reported by solving the Einstein-Maxwell field equations by choosing a suitable form of radial pressure. The model parameters $\rho$, $p_r$, $p_{\perp}$ and $E^{2}$ are in closed form and all are well…

广义相对论与量子宇宙学 · 物理学 2018-01-08 B. S. Ratanpal , Piyali Bhar

In this paper, model of charged gravastar under $f(T)$ modified gravity is obtained. The model has been explored by taking the diagonal tetrad field of static spacetime together with electric charge. To solve the Einstein-Maxwell field…

广义相对论与量子宇宙学 · 物理学 2021-06-18 Piyali Bhar , Pramit Rej

This paper is devoted to study the analytic models of anisotropic compact stars in $f(T)$ gravity (where $T$ is torsion scalar), with non-diagonal tetrad. By taking the anisotropic source inside the spherically symmetric star, the equations…

综合物理 · 物理学 2016-01-20 M. Zubair , G. Abbas

We attempt to study a singularity-free model for the spherically symmetric anisotropic strange stars under Einstein's general theory of relativity by exploiting the Tolman-Kuchowicz metric. Further, we have assumed that the cosmological…

广义相对论与量子宇宙学 · 物理学 2018-10-03 M. K. Jasim , Debabrata Deb , Saibal Ray , Y. K. Gupta , Sourav Roy Chowdhury

The main objective of this article is to study the viable compact stellar structures in non-Riemannian geometry, i.e., $f(\mathbb{Q},T)$ theory, where $\mathbb{Q}$ defines the non-metricity and $T$ represents trace of the stress-energy…

广义相对论与量子宇宙学 · 物理学 2024-04-02 M. Zeeshan Gul , M. Sharif , Adeeba Arooj

The effective action for quantum gravity coupled to matter contains corrections arising from the functional measure. We analyse the effect of such corrections for anisotropic self-gravitating compact objects described by means of the…

广义相对论与量子宇宙学 · 物理学 2025-07-29 R. Casadio , I. Kuntz , R. da Rocha

We consider static charged fluid spheres with a cosmological constant. We assume a polytropic equation of state, $p \propto \rho^\Gamma$, and a power law charge distribution, $q\propto r^n$. Using this, we convert the generalised…

广义相对论与量子宇宙学 · 物理学 2026-03-30 Alex Stornelli , Anish Agashe

Taking local anisotropy into consideration, in this paper, some new analytical models of relativistic anisotropic charged quark stars in linear and quadratic regime have been developed. The Einstein-Maxwell field equations have been solved…

广义相对论与量子宇宙学 · 物理学 2023-03-23 Manuel Malaver , Rajan Iyer

The goal of this work is to develop physical models for spherically symmetric systems in the realm of $f(Q)$ gravity. The field equations are set up for anisotropic fluid and formulate these equations using physical ansatz of Vaidya-Tikekar…

广义相对论与量子宇宙学 · 物理学 2025-03-28 M. Awais , M. Azam

In the present article a new class of exact solutions of Einstein's field equations for charged anisotropic distribution is obtained on the background of pseudo-spheroidal spacetime characterized by the metric potential…

广义相对论与量子宇宙学 · 物理学 2016-04-07 B. S. Ratanpal , V. O. Thomas , D. M. Pandya

In this work, we report a new exact solution of Einstein's field equations for static spherically symmetric anisotropic matter distributions on the background of paraboloidal spacetime by assuming a quadratic equation of state. The model…

广义相对论与量子宇宙学 · 物理学 2025-08-25 B S Ratanpal , Bhavesh Suthar

The purpose of this paper is to obtain exact solutions for charged anisotropic spherically symmetric matter configuration. For this purpose, we consider known solution for isotropic spherical system in the presence of electromagnetic field…

广义相对论与量子宇宙学 · 物理学 2018-07-04 M. Sharif , Sobia Sadiq

We find two new classes of exact solutions to the Einstein-Maxwell system of equations. The matter distribution satisfies a linear equation of state consistent with quark matter. The field equations are integrated by specifying forms for…

广义相对论与量子宇宙学 · 物理学 2015-06-23 Jefta M. Sunzu , Sunil D. Maharaj , Subharthi Ray