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相关论文: Compact star in Tolman Kuchowicz spacetime in back…

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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

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

In this paper, we develop a new relativistic compact stellar model for a spherically symmetric anisotropic matter distribution. The model has been obtained through generating a new class of solutions by invoking the Tolman {\em ansatz} for…

广义相对论与量子宇宙学 · 物理学 2020-11-25 Piyali Bhar , Shyam Das , Bikram Keshari Parida

In this present work, we have obtained a singularity-free spherically symmetric stellar model with anisotropic pressure in the background of Einstein's general theory of relativity. The Einstein's field equations have been solved by…

广义相对论与量子宇宙学 · 物理学 2021-06-23 Piyali Bhar , Pramit Rej , P. Mafa Takisa , M. Zubair

We present model for anisotropic compact star under the general theory of relativity of Einstein. In the study a 4-dimensional spacetime has been considered which is embedded into the 5-dimensional flat metric so that the spherically…

综合物理 · 物理学 2018-08-01 S. K. Maurya , Saibal Ray , Shounak Ghosh , Sarbajit Manna , Smitha T. T

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 paper, we have presented a compact object model in the framework of Einstein-Gauss-Bonnet gravity (EGB) with a linear equation of state considering a metric potential proposed for Buchdahl (1959). The new obtained models satisfy all…

广义相对论与量子宇宙学 · 物理学 2023-01-24 Manuel Malaver , Rajan Iyer , Israr Khan

We investigate a compact spherically symmetric relativistic body with anisotropic particle pressure profiles. The distribution possesses characteristics relevant to modeling compact stars within the framework of general relativity. For this…

广义相对论与量子宇宙学 · 物理学 2018-02-28 S. K. Maurya , Ayan Banerjee , Sudan Hansraj

This paper discusses a generalized model for compact stars, assumed to be anisotropic in nature due to the spherical symmetry and high density. After embedding the four-dimensional spacetime in a five-dimensional flat spacetime, which may…

综合物理 · 物理学 2018-03-09 S. K. Maurya , Debabrata Deb , Saibal Ray , P. K. F. Kuhfittig

Within the framework of Einstein-Gauss-Bonnet theory in five-dimensional spacetime ($5D$ EGB), we derive the hydrostatic equilibrium equations and solve them numerically to obtain neutron stars for both isotropic and anisotropic…

广义相对论与量子宇宙学 · 物理学 2024-10-15 Juan M. Z. Pretel , Ayan Banerjee , Anirudh Pradhan

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

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

The possible emergence of compact stars has been investigated in the recently introduced modified Gauss-Bonnet $f(\mathcal{G},T)$ gravity, where $\mathcal{G}$ is the Gauss-Bonnet term and ${T}$ is the trace of the energy-momentum tensor.…

广义相对论与量子宇宙学 · 物理学 2017-10-18 M. Farasat Shamir , Mushtaq Ahmad

This paper is devoted to investigate the dynamics of the self gravitating adiabatic and anisotropic source in $5D$ Einstein Gauss-Bonnet gravity. To this end, the source has been taken as Tolman-Bondi model which preserve inhomogeneity in…

综合物理 · 物理学 2015-04-30 G. Abbas , M. Zubair

In recent years, there has been a growing interest in stellar modelling in the framework of Einstein-Gauss-Bonnet gravity. In this paper, for a relativistic star in static equilibrium, we invoke the $5$ dimensional Einstein-Gauss-Bonnet…

广义相对论与量子宇宙学 · 物理学 2023-06-22 Soumik Bhattacharya , Suntharalingam Thirukkanesh , Ranjan Sharma

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

In this paper, we treat 4-dimensional Einstein-Gauss-Bonnet gravity as general relativity with an effective stress-energy tensor. We will study the modified Oppenheimer-Snyder-Datt model of the gravitational collapse of a star in a…

广义相对论与量子宇宙学 · 物理学 2023-02-22 R. Hassannejad , A. Sadeghi , F. Shojai

In this study, we present a generalized spherically symmetric, anisotropic and static compact stellar model in $f(T)$ gravity, where $T$ represents the torsion scalar. By employing the Karmarkar condition we have obtained embedding class 1…

广义相对论与量子宇宙学 · 物理学 2018-11-30 Debabrata Deb , Shounak Ghosh , S. K. Maurya , Maxim Khlopov , Saibal Ray

This study investigates the modeling of anisotropic magnetized static neutron stars within the framework of five-dimensional Einstein-Gauss-Bonnet (5D EGB) gravity. While Einstein's gravity has traditionally been employed to examine neutron…

广义相对论与量子宇宙学 · 物理学 2025-08-21 Mohammad Mazhari

We develop a theoretical framework to study slowly rotating compact stars in a rather general class of alternative theories of gravity, with the ultimate goal of investigating constraints on alternative theories from electromagnetic and…

广义相对论与量子宇宙学 · 物理学 2015-05-30 Paolo Pani , Emanuele Berti , Vitor Cardoso , Jocelyn Read
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