中文
相关论文

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

200 篇论文

In this paper, we study the physical characteristics of anisotropic spherically symmetric quark star candidates for $R+2\sigma T$ gravity model, where $R$, $\sigma$ and $T$ depict scalar curvature, coupling parameter, and the trace of the…

广义相对论与量子宇宙学 · 物理学 2020-01-08 M. Sharif , Arfa Waseem

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 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

Modified gravity is one of the potential candidates to explain the accelerated expansion of the universe. Current study highlights the materialization of anisotropic compact stars in the context of $f(R,G)$ theory of gravity. In particular,…

综合物理 · 物理学 2017-07-07 M. Farasat Shamir , Saeeda Zia

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

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

In this paper, we formulate two exact charged solutions to the field equations by extending the domain of existing anisotropic models with the help of minimal gravitational decoupling in $f(\mathbb{R},\mathbb{T})$ theory. For this, the…

广义相对论与量子宇宙学 · 物理学 2023-12-07 M. Sharif , Tayyab Naseer

Compact objects have an intrinsic anisotropy due to the presence of strong magnetic fields that cause considerable modifications on the equations of state (EoS). In this work, we study the impact of this anisotropy in the size and shape of…

广义相对论与量子宇宙学 · 物理学 2020-02-05 S. López Pérez , D. Manreza Paret , G. Quintero Angulo , A. Pérez Martínez , D. Alvear Terrero

We investigate anisotropic quark stars within the context of energy-momentum squared gravity (EMSG), assuming the internal composition consists of homogeneous, charge-neutral 3-flavor interacting quark matter with ${\cal O}(m_s^4)$…

广义相对论与量子宇宙学 · 物理学 2023-10-02 Qian Li , Xianming Liu , Ruijun Tang , Jiayong Xiao

This paper discusses the gravitational collapse of dynamical self-gravitating fluid distribution in $f(\mathcal{R},\mathcal{T},\mathcal{Q})$ gravity, where $\mathcal{Q}=\mathcal{R}_{\varphi\vartheta}\mathcal{T}^{\varphi\vartheta}$. In this…

广义相对论与量子宇宙学 · 物理学 2024-01-11 M. Sharif , Tayyab Naseer

This paper deals with the theoretical modeling of anisotropic compact stars in the framework of $f(T)$ theory of gravity, where $T$ is torsion scalar. To this end, we have used the exact solutions of Krori and Barua metric to a static…

综合物理 · 物理学 2016-02-16 G. Abbas , Afshan Kanwal , M. Zubair

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 focuses on the analysis of static spherically symmetric anisotropic solutions in the presence of electromagnetic field through the gravitational decoupling approach in…

广义相对论与量子宇宙学 · 物理学 2024-03-04 M. Sharif , T. Naseer

This paper constructs two immediate extensions of the existing anisotropic solutions in the context of Einstein-Maxwell framework by employing minimal geometric deformation. To achieve this, we assume a static spherical interior initially…

广义相对论与量子宇宙学 · 物理学 2023-10-03 M. Sharif , Tayyab Naseer

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

We consider the general situation of a compact relativistic body with anisotropic pressures in the presence of the electromagnetic field. The equation of state for the matter distribution is linear and may be applied to strange stars with…

广义相对论与量子宇宙学 · 物理学 2009-01-16 S. Thirukkanesh , S. D. Maharaj

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 this paper, we developed three analytical models and obtained a new class of solutions describing compact stellar structures using the theory of teleparallel gravity. We consider the general anisotropic nature of stellar configurations…

广义相对论与量子宇宙学 · 物理学 2022-09-21 Jay Solanki , Rohan Joshi , Malay Garg

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 manuscript, we investigate the behavior of stellar structure through embedding approach in $f(R, \phi, X)$ modified theory of gravity, where $R$ denotes the Ricci scalar, $\phi$ represents the scalar potential and $X$ indicates the…

广义相对论与量子宇宙学 · 物理学 2024-04-02 Adnan Malik , Yonghui Xia , Ayesha Almas , M. Farasat Shamir