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相关论文: Anisotropic Compact Stars in $f(T)$ Gravity

200 篇论文

In this work, we get an idea of the existence of compact stars in the background of f(T) modified gravity where T is a scalar torsion. We acquire the equations of motion using anisotropic property within the spherically compact star with…

综合物理 · 物理学 2019-11-26 Pameli Saha , Ujjal Debnath

In this work, we investigate an anisotropic compact star's physical properties and stability in F(Q) gravity. The study focuses on the significance of F(Q) gravity on the structure and stability of compact star, considering non-perfect…

广义相对论与量子宇宙学 · 物理学 2024-09-26 Sat Paul , Jitendra Kumar , Sunil Kumar Maurya , Sourav Choudhary , Sweeti Kiroriwala

This paper investigates the viability and stability of anisotropic compact stars in the framework of $f(\mathcal{R},\mathrm{T}^{2})$ theory ($\mathcal{R}$ is the Ricci scalar and…

广义相对论与量子宇宙学 · 物理学 2023-05-31 M. Sharif , Sana Manzoor

We obtain a class of anisotropic spherically symmetric relativistic solutions of compact objects in hydrostatic equilibrium in the $f(R,T) =R+2\chi T$ modified gravity, where $R$ is the Ricci scalar, $T$ is the trace of the energy momentum…

综合物理 · 物理学 2020-09-18 S. Dey , A. Chanda , B. C. Paul

This study simulates the characteristics of spherically symmetric, anisotropic compact stellar bodies with electrical charge within the framework of the $f(Q)$ theory of gravity. Employing the Krori-Barua metric ansatz (K.D. Krori, J.…

广义相对论与量子宇宙学 · 物理学 2024-11-05 Debadri Bhattacharjee , Pradip Kumar Chattopadhyay

One of the possible potential candidates for describing the universe's rapid expansion is modified gravity. In the framework of the modified theory of gravity $f(R,G)$, the present work features the materialization of anisotropic matter,…

广义相对论与量子宇宙学 · 物理学 2022-06-29 W. U. Rahman , M. Ilyas , Z. Yousaf , S. Ullah , F. Khan , R. khan

In this work, we study the existence of strange star in the background of $f(\mathbb{T},\mathcal{T})$ gravity in the Einstein spacetime geometry, where $\mathbb{T}$ is the torsion tensor and $\mathcal{T}$ is the trace of the energy-momentum…

广义相对论与量子宇宙学 · 物理学 2021-10-13 I. G. Salako , M. Khlopov , Saibal Ray , M. Z. Arouko , Pameli Saha , Ujjal Debnath

Current study highlights the physical characteristics of charged anisotropic compact stars by exploring some exact solutions of modified field equations in $f(R,G)$ gravity. A comprehensive analysis is performed from the obtained solutions…

广义相对论与量子宇宙学 · 物理学 2018-06-13 M. Farasat Shamir , Saeeda Zia

The present work is focused on the investigation of the existence of compact structures describing anisotropic matter distributions within the framework of modified gravity theories, specifically f(R,$\mathcal{T}$) gravity theory.…

广义相对论与量子宇宙学 · 物理学 2019-08-14 S. K. Maurya , Abdelghani Errehymy , Debabrata Deb , Francisco Tello-Ortiz , Mohammed Daoud

We investigate various anisotropic spherical distributions of charged celestial bodies within the context of f(R) gravity, where R represents the Ricci scalar. The properties of specific charged compact objects are analyzed by using the…

广义相对论与量子宇宙学 · 物理学 2025-05-13 W. U. Rahman , M. Ilyas , Yi Zhong , De-Liang Yao

Within the metric formalism of $f(R)$ theories of gravity, where $R$ is the Ricci scalar, we study the hydrostatic equilibrium structure of compact stars with the inclusion of anisotropic pressure. In particular, we focus on the $f(R)=…

广义相对论与量子宇宙学 · 物理学 2022-07-11 Juan M. Z. Pretel , Sergio B. Duarte

We investigate anisotropic compact stars in the non-minimal $Y(R)F^2$ model of gravity which couples an arbitrary function of curvature scalar $Y(R)$ to the electromagnetic field invariant $F^2$. After we obtain exact anisotropic solutions…

广义相对论与量子宇宙学 · 物理学 2018-10-17 Özcan Sert , Fatma Çeliktaş , Muzaffer Adak

Model of gravitational collapse of anisotropic compact stars in a new theory of $ f(R) $ gravity has been developed. The author considers the modified gravity model of $ f(R) = \xi R^4 $ to investigate a physically acceptable model of…

广义相对论与量子宇宙学 · 物理学 2022-04-01 Jay Solanki

The manifesto of the current article is to investigate the compact anisotropic matter profiles in the context of one of the modified gravitational theories, known as $f(\mathcal{R}, \mathcal{T})$ gravity, where $\mathcal{R}$ is a Ricci…

广义相对论与量子宇宙学 · 物理学 2021-01-05 G. Mustafa , Xia Tie-Cheng , Mushtaq Ahmad , M. Farasat Shamir

The main objective of this paper is to investigate the impact of $f(\mathcal{Q},\mathcal{T})$ gravity on the geometry of anisotropic compact stellar objects, where $\mathcal{Q}$ is non-metricity and $\mathcal{T}$ is the trace of the…

广义相对论与量子宇宙学 · 物理学 2024-02-21 M. Zeeshan Gul , M. Sharif , Adeeba Arooj

In this paper, we have formulated the new exact model of quintessence anisotropic star in $f(R)$ theory of gravity. The dynamical equations in $f(R)$ theory with the anisotropic fluid and quintessence field have been solved by using…

综合物理 · 物理学 2015-09-30 G. Abbas , M. Zubair , G. Mustafa

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

This paper explores the viability and stability of compact stellar objects characterized by anisotropic matter in the framework of $f(\mathrm{Q},\mathrm{T})$ theory, where $\mathrm{Q}$ denotes non-metricity and $\mathrm{T}$ represents the…

广义相对论与量子宇宙学 · 物理学 2024-07-08 M. Zeeshan Gul , M. Sharif , Adeeba Arooj

This paper delves into the impact of extended symmetric teleparallel theory on anisotropic compact stellar structures. The explicit field equations were formulated by considering a minimum model of this extended gravity. Basically, the…

广义相对论与量子宇宙学 · 物理学 2025-05-01 M. Zeeshan Gul , M. Sharif , Adeeba Arooj , Baiju Dayanandan

The present study provides an in-depth analysis of the anisotropic matter distribution and various physical aspects of compact stars in the context of a $f(R,G)$-gravity framework. In order to gain an exhaustive understanding of these…

广义相对论与量子宇宙学 · 物理学 2023-08-22 M. Ilyas , A. R. Athar , F. Khan , Asma Anfal