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相关论文: Charged compact star in $f(R,T)$ gravity in Tolman…

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Employing $f(T)$ gravity, where $T$ is the torson, we have developed a new model of an anisotropic compact star in this work. Tolman-Kuchowicz (TK) metric potential has been used to solve the set of field equations. Furthermore, the…

广义相对论与量子宇宙学 · 物理学 2023-04-12 Piyali Bhar

The concept of dark energy can be used as a possible option to prevent the gravitational collapse of compact objects into singularities. It affects the universe on the largest scale, as it is responsible for our universe's accelerated…

广义相对论与量子宇宙学 · 物理学 2023-08-15 Pramit Rej , Akashdip Karmakar

In this manuscript, we study the behavior of charged isotropic compact stellar objects within the framework of the modified Gauss-Bonnety theory of gravity by considering the Tolman Kuchowicz spacetime. We use some matching conditions of…

广义相对论与量子宇宙学 · 物理学 2024-06-25 Adnan Malik

The purpose of our present work is to investigate some new features of a static anisotropic relativistic hybrid compact star composed of strange quark matter (SQM) in the inner core and normal baryonic matter distribution in the crust. Here…

广义相对论与量子宇宙学 · 物理学 2024-03-21 Pramit Rej , Piyali Bhar

This paper aims to explore a class of static stellar equilibrium configuration of relativistic charged spheres made of a charged perfect fluid. Solving the Einstein-Maxwell field equations, we consider a particularized metric potential,…

广义相对论与量子宇宙学 · 物理学 2021-05-11 J. Kumar , S. K. Maurya , A. K. Prasad , Ayan Banerjee

In this article we propose a relativistic model of a static spherically symmetric anisotropic strange star with the help of Tolman-Kuchowicz (TK) metric potentials [Tolman, Phys. Rev. {\bf55}, 364 (1939) and Kuchowicz, Acta Phys. Pol.…

广义相对论与量子宇宙学 · 物理学 2019-10-02 Suparna Biswas , Dibyendu Shee , Saibal Ray , F. Rahaman , B. K. Guha

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

In this work, we examine a spherically symmetric compact body with isotropic pressure profile, in this context we obtain a new class of exact solutions of Einstein's-Maxwell field equation for compact stars with uniform charged…

综合物理 · 物理学 2021-04-28 Amit Kumar Prasad , Jitendra Kumar

This paper deals with the existence of a compact stellar object, precisely strange (quark) star, in the framework of Einstein's General Theory of Relativity with Tolman $V$ metric potential, which is one of the simplest forms of potential…

广义相对论与量子宇宙学 · 物理学 2020-04-23 Saibal Ray , Dibyendu Shee , Debabrata Deb , S. K. Maurya , M. K. Jasim

The purpose of this paper is to study charged compact stars using extended gravitational theory, also known as $f(\mathcal{R}, \mathcal{G}, \mathcal{T})$ gravity. Alternatively, this theory is also called $f(\mathcal{R}, \mathcal{T},…

广义相对论与量子宇宙学 · 物理学 2023-08-23 M. Ilyas , A. R. Athar , Asma Bibi

The present work is to introduce a new kind of modified gravitational theory, named as $f(\mathcal{R,G,T})$ (also $f(\mathcal{R,T,G})$) gravity, where $\mathcal{R}$ is the Ricci scalar, $\mathcal{G}$ is Gauss-Bonnet invariant and…

广义相对论与量子宇宙学 · 物理学 2021-11-16 M. Ilyas

This article aims to investigate various anisotropic stellar models in the background of $f(\mathcal{R},\mathcal{T},\mathcal{Q})$ gravity, where $\mathcal{Q}=\mathcal{R}_{\varphi\vartheta}\mathcal{T}^{\varphi\vartheta}$. In this regard, we…

广义相对论与量子宇宙学 · 物理学 2024-10-10 M. Sharif , Tayyab Naseer

The present work discusses about the existence of compact star model in the context of $f(R,T)$ gravity with $R$ as the Ricci scalar and $T$ as the trace of energy-momentum tensor $T_{\mu \nu}$. The model has been developed by considering…

广义相对论与量子宇宙学 · 物理学 2021-07-05 Piyali Bhar , Pramit Rej , Aisha Siddiqa , Ghulam Abbas

In this work, we explore a class of compact charged spheres that have been tested against experimental and observational constraints with some known compact stars candidates. The study is performed by considering the self-gravitating,…

综合物理 · 物理学 2018-08-01 Jitendra Kumar , Amit Kumar Prasad , S. K. Maurya , Ayan Banerjee

This study investigates the behavior of charged compact stars within the $f(\mathfrak{Q}, \mathcal{T})$ gravitational framework, where $\mathfrak{Q}$ denotes the non-metricity scalar and $\mathcal{T}$ represents the trace of the…

广义相对论与量子宇宙学 · 物理学 2026-04-07 M. Sharif , Iqra Ibrar

In the current article, we study anisotropic spherically symmetric strange star under the background of $f(R,T)$ gravity using the metric potentials of Tolman-Kuchowicz type~\cite{Tolman1939,Kuchowicz1968} as $\lambda(r)=\ln(1+ar^2+br^4)$…

广义相对论与量子宇宙学 · 物理学 2020-06-03 Suparna Biswas , Dibyendu Shee , B. K. Guha , Saibal Ray

In this paper, we consider the mimetic gravitational theory to derive a novel category of anisotropic star models. To end and to put the resulting differential equations into a closed system, the form of the metric potential $g_{rr}$ as…

广义相对论与量子宇宙学 · 物理学 2021-10-11 G. G. L. Nashed

This paper presents the class of solutions to the Einstein field equations for the uncharged static spherically symmetric compact object PSR J0952-0607 by using Generalized Tolman-Kuchowicz space-time metric with quadratic equation of…

广义相对论与量子宇宙学 · 物理学 2025-04-04 Hemani R. Acharya , D. M. Pandya , Bharat Parekh , V. O. Thomas

In this paper, we assess different charged self-gravitating stellar models possessing anisotropic matter source in the background of $f(G,T)$ gravity. For this purpose, we choose a well-known model of this gravity, i.e., $f(G,T)=G^2+\varrho…

广义相对论与量子宇宙学 · 物理学 2023-12-01 M. Sharif , K. Hassan

Dark energy is the component in the present Universe with the greatest abundance, and it is responsible for the accelerating expansion of the Universe. As a result, dark energy is likely to interact with any compact astrophysical object…

广义相对论与量子宇宙学 · 物理学 2022-02-28 Piyali Bhar
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