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相关论文: A study of anisotropic compact star with MIT bag E…

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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

In this article we propose a new class of isotropic strange star using Buchdahl-I metric ansatz in the context of MIT bag model equation of state considering of non-zero strange quark mass $(m_{s})$ in the framework of modified $f(R,T)$…

广义相对论与量子宇宙学 · 物理学 2024-05-22 Debadri Bhattacharjee , Pradip Kumar Chattopadhyay

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

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

In this article, we are devoted to discuss different compact stars admitting anisotropic interiors in a particular modified theory of gravity. For this purpose, a spherically symmetric metric is adopted to formulate the field equations…

广义相对论与量子宇宙学 · 物理学 2025-12-29 Tayyab Naseer , M. Sharif

This paper presents a novel anisotropic quark star model in the backdrop of mimetic gravitational theory. Our study focuses on the strange quark stars using the MIT bag equation of state (EoS) admitting non-singular Buchdahl metric…

广义相对论与量子宇宙学 · 物理学 2025-09-16 Meghanil Sinha , S. Surendra Singh

Alternative gravity theory is currently an incredibly significant technique for addressing some enduring experimental difficulties, such as the universe's dark region. They may also be employed in celestial cosmology, producing results that…

广义相对论与量子宇宙学 · 物理学 2024-05-01 Tayyaba Naz , Adnan Malik , Zenab Ramay

We propose a spherically symmetric and anisotropic model for strange quark stars within the framework of MIT Bag model. Though the model is found to comply with all the physical requirements of a realistic star satisfying a strange matter…

广义相对论与量子宇宙学 · 物理学 2017-11-20 Mehedi Kalam , Anisul Ain Usmani , Farook Rahaman , Sk. Monowar Hossein , Indrani Karar , Ranjan Sharma

We study strange stars in the framework of $f\left(R,\mathcal{T}\right)$ theory of gravity where the strange quark matter distribution inside the stellar system is governed by the phenomenological MIT Bag model equation of state (EOS).…

综合物理 · 物理学 2018-04-24 Debabrata Deb , Farook Rahaman , Saibal Ray , B. K. Guha

This article presents a new model for anisotropic compact stars that are confined to physical dark matter in the background of $f(T)$ teleparallel gravity. The model is based on the equation of state (EoS) of the bag model type and the…

广义相对论与量子宇宙学 · 物理学 2024-08-06 Samprity Das , Prabir Rudra , Surajit Chattopadhyay

This paper aims to examine the composition of various spherically symmetric star models which are coupled with anisotropic configuration in $f(\mathcal{R},\mathcal{T},\mathcal{Q})$ gravity, where…

广义相对论与量子宇宙学 · 物理学 2024-07-03 M. Sharif , T. Naseer

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

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

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

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

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

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

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

This paper investigates some particular anisotropic star models in $f(\mathcal{R},\mathcal{T},\mathcal{Q})$ gravity, where $\mathcal{Q}=\mathcal{R}_{\omega\alpha}\mathcal{T}^{\omega\alpha}$. We adopt a standard model…

广义相对论与量子宇宙学 · 物理学 2023-04-05 M. Sharif , T. Naseer

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
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