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相关论文: Anisotropic Strange Star Model Beyond Standard Max…

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The recent theoretical advance known as the Minimal Geometric Deformation (MGD) method has initiated a renewed interest in investigating higher curvature gravitational effects in relativistic astrophysics. In this work, we model a strange…

广义相对论与量子宇宙学 · 物理学 2022-02-16 S. K. Maurya , Ksh. Newton Singh , M. Govender , Sudan Hansraj

This study simulates strange stars in $f(Q)$ gravity with an additional source under an electric field using gravitational decoupling and the complete Gravitational Decoupling (CGD) technique. By employing the Tolman ansatz and the MIT bag…

广义相对论与量子宇宙学 · 物理学 2024-03-21 Santosh V. Lohakare , S. K. Maurya , Ksh. Newton Singh , B. Mishra , Abdelghani Errehymy

This thesis investigates compact astrophysical objects within modified theories of gravity, focusing on neutron stars and strange stars. The work studies their internal structure, equilibrium, and stability in gravitational frameworks based…

广义相对论与量子宇宙学 · 物理学 2026-05-26 Sneha Pradhan

In our investigation, we pioneer the development of geometrically deformed strange stars within the framework of teleparallel gravity theory through gravitational decoupling via the complete geometric deformation (CGD) technique. The…

广义相对论与量子宇宙学 · 物理学 2025-02-05 Sneha Pradhan , Piyali Bhar , Sanjay Mandal , P. K. Sahoo , Kazuharu Bamba

We study a specific model of anisotropic strange stars in the modified $f\left(R,\mathcal{T}\right)$-type gravity by deriving solutions to the modified Einstein field equations representing a spherically symmetric anisotropic stellar…

广义相对论与量子宇宙学 · 物理学 2019-05-01 Debabrata Deb , Sergei V. Ketov , S. K. Maurya , Maxim Khlopov , P. H. R. S. Moraes , Saibal Ray

In this study, we developed the geometrically deformed compact objects in the $f(Q, T)$ gravity theory under an electric field through gravitational decoupling via. minimal geometric deformation (MGD) technique for the first time. The…

广义相对论与量子宇宙学 · 物理学 2024-08-06 Sneha Pradhan , Sunil Kumar Maurya , Pradyumn Kumar Sahoo , Ghulam Mustafa

In the work, we present investigation on decoupling gravitational sources under the framework of $f(R,T)$ gravity. Basically the complete geometric deformation technique has been employed here which facilitates finding exact solutions to…

广义相对论与量子宇宙学 · 物理学 2024-03-21 S. K. Maurya , B. Mishra , Saibal Ray , Riju Nag

In this work we take our cue from the observations of gravitational waves of the GW190814 event which suggests that source of the signals can be ascribed to a compact binary coalescence of a 22.2 to 24.3$ M_{\odot}$ black hole and a compact…

广义相对论与量子宇宙学 · 物理学 2022-10-12 S. K. Maurya , G. Mustafa , M. Govender , Ksh. Newton Singh

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

In this article, we attempt to find a singularity free solution of Einstein's field equations for compact stellar objects, precisely strange (quark) stars, considering Schwarzschild metric as the exterior spacetime. To this end, we consider…

广义相对论与量子宇宙学 · 物理学 2017-10-19 Debabrata Deb , Sourav Roy Chowdhury , Saibal Ray , Farook Rahaman , B. K. Guha

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

Present paper deals with the composition and modelling of compact dense astrophysical bodies under the framework of $f(R)$ gravity. The model is employed on various observed strange stars viz., SMC X-1, SAX J1808.4-3658, Swift J1818.0-1607,…

广义相对论与量子宇宙学 · 物理学 2020-08-12 B. Thakore , R. Goti , S. Shah , H. Pandya , D. M. Pandya

This paper deals with existence of strange stars in $f\left(T\right) $ modified gravity. For this purpose, we have taken the diagonal tetrad field of static spacetime with charged anisotropic fluid and MIT bag model, which provide the…

综合物理 · 物理学 2016-06-28 G. Abbas , Shahid Qaisar , Abdul Jawad

We obtain a class of new anisotropic relativistic solution in Einstein Gauss-Bonnet (EGB) gravity with Finch-Skea metric in hydrostatic equilibrium. The relativistic solutions are employed to construct anisotropic stellar models for strange…

广义相对论与量子宇宙学 · 物理学 2022-01-26 Sagar Dey , Bikash Chandra Paul

In this paper, we generate an exact anisotropic gravastar model using gravitational decoupling technique through minimal geometric deformation in the framework of $f(\Re, {T}^{2})$ gravity. This novel model explains an ultra-compact stellar…

广义相对论与量子宇宙学 · 物理学 2023-04-17 M. Sharif , Saba Naz

The main aim of this study is to examine the behaviour of physical parameters of an anisotropic compact star model demonstrating spherical symmetry in F(Q) modified gravity. To evaluate the behaviour and the stability of an anisotropic…

广义相对论与量子宇宙学 · 物理学 2025-05-26 Sat Paul , Jitendra Kumar , S. K. Maurya

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 article focuses on different anisotropic models within the framework of a specific modified $f(\mathcal{R},\mathcal{T},\mathcal{R}_{\zeta\gamma}\mathcal{T}^{\zeta\gamma})$ gravity theory. The study adopts a static spherically symmetric…

广义相对论与量子宇宙学 · 物理学 2025-04-22 Yihu Feng , Tayyab Naseer , G. Mustafa , S. K. Maurya

Motivation: Motivated by the growing interest in understanding the role of non-metricity in describing dense stellar systems, in this paper, we study compact stellar configurations within the framework of linear $f(Q)$ gravity. Methodology:…

广义相对论与量子宇宙学 · 物理学 2026-04-28 Arpita Ghosh , Abhishek Paul , Ranjan Sharma , Samstuti Chanda

Inspired by the conundrum of the gravitational event, GW190814 which brings to light the coalescence of a 23 $ M_{\odot}$ black hole with a yet to be determined secondary component, we look to modelling compact objects within the framework…

广义相对论与量子宇宙学 · 物理学 2023-09-20 S. K. Maurya , K. N. Singh , M. Govender , G. Mustafa , S. Ray
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