中文
相关论文

相关论文: A new exact solution for anisotropic compact stars…

200 篇论文

In this work some families of relativistic anisotropic charged fluid spheres have been obtained by solving Einstein-Maxwell field equations with preferred form of one of the metric potentials, a suitable forms of electric charge…

广义相对论与量子宇宙学 · 物理学 2014-09-02 Mohammad Hassan Murad , Saba Fatema

In this paper, we explore the existence of various non-singular compact stellar solutions influenced by the Maxwell field within the matter-geometry coupling based modified gravity. We start this analysis by considering a static spherically…

广义相对论与量子宇宙学 · 物理学 2024-09-04 Tayyab Naseer , Jackson Levi Said

In present work, we have studied a new stellar distribution model with spherically symmetric matter and an uncharged isotropic distribution in general relativity. In this model, we have considered a particular metric potential. The model is…

广义相对论与量子宇宙学 · 物理学 2021-09-03 Amit Kumar Prasad , Jitendra Kumar , Ashok Kumar

We obtain an approximate global stationary and axisymmetric solution of Einstein's equations which can be considered as a simple star model: a self-gravitating perfect fluid ball with constant mass density rotating in rigid motion. Using…

广义相对论与量子宇宙学 · 物理学 2008-11-26 J. A. Cabezas , J. Martin-Martin , A. Molina , E. Ruiz

We extract new classes of anisotropic solutions in the framework of mimetic gravity, by applying the Tolman-Finch-Skea metric and a specific anisotropy not directly depending on it, and by matching smoothly the interior anisotropic solution…

广义相对论与量子宇宙学 · 物理学 2023-04-19 G. G. L. Nashed , Emmanuel N. Saridakis

In this work, we have obtained exact solutions of Einstein equations for static and axially symmetric magnetized matter, specifically in plane-symmetric and almost-plane symmetric cases. Although these solutions impose constraints on the…

广义相对论与量子宇宙学 · 物理学 2018-04-05 Ernesto Contreras , Pedro Bargueno , Gretel Quintero , Aurora Perez-Martinez , Diana Alvear

The literature suggests that dark energy is responsible for the accelerating expansion of the universe due to its negative pressure, therefore, dark energy can be used as a possible option to prevent the gravitational collapse of compact…

广义相对论与量子宇宙学 · 物理学 2025-08-18 Susmita Sarkar , Nayan Sarkar

Some new exact solutions of Einstein's field equations in a spatially homogeneous and anisotropic Bianchi type-V space-time with minimally interaction of perfect fluid and dark energy components have been obtained. To prevail the…

综合物理 · 物理学 2011-10-06 Anirudh Pradhan , H. Amirhashchi

We investigate the properties of high density compact objects in a vector type theory, inspired by Einstein's 1919 theory of elementary particles, in which Einstein assumed that elementary particles are held together by gravitational as…

广义相对论与量子宇宙学 · 物理学 2022-04-12 Zahra Haghani , Tiberiu Harko

In this paper we present a strange stellar model using Tolman $V$ type metric potential employing simplest form of the MIT bag equation of state (EOS) for the quark matter. We consider that the stellar system is spherically symmetric,…

广义相对论与量子宇宙学 · 物理学 2018-08-08 Dibyendu Shee , Debabrata Deb , Shounak Ghosh , Saibal Ray , B. k. Guha

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

In this paper, we study new exact solutions of Einstein's field equations with the motivation of the relativistic elasticity theory. We construct the static conformal elastic solution by applying conformal transformations to the…

广义相对论与量子宇宙学 · 物理学 2022-10-04 H. M. Manjunatha , S. K. Narasimhamurthy , Z. Nekouee

In this paper, we studied the behaviour of compact relativistic objects with anisotropic matter distribution considering quadratic equation of state of Feroze and Siddiqui (2011). We specify the gravitational potential Z(x) in order to…

广义相对论与量子宇宙学 · 物理学 2014-07-04 Manuel Malaver

In the present study we search for a new stellar model with spherically symmetric matter and charged distribution under general relativistic framework. The model represents a compact star of embedding class one. The solutions obtain here…

广义相对论与量子宇宙学 · 物理学 2017-03-08 S. K. Maurya , Y. K. Gupta , Saibal Ray , Debabrata Deb

We present a model of compact astrophysical object under General Theory of Relativity using the anisotropic extension of Tolman IV solution. The anisotropy function, derived from the model, remains well behaved throughout the interior of…

广义相对论与量子宇宙学 · 物理学 2022-06-29 Shyam Das , Bikram Keshari Parida , Koushik Chakraborty , Saibal Ray

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

This thesis explores compact objects, particularly neutron stars, focusing on their properties, classification, and stability within the framework of general relativity. Two distinct studies are presented. The first study examines the…

广义相对论与量子宇宙学 · 物理学 2024-10-15 A. C. Khunt

We find a new class of exact solutions to the Einstein-Maxwell equations which can be used to model the interior of charged relativistic objects. These solutions can be written in terms of special functions in general; for particular…

广义相对论与量子宇宙学 · 物理学 2013-01-01 K. Komathiraj , S. D. Maharaj

In the present work, we have searched the existence of anisotropic and non-singular compact star in the $f(R,T)$ gravity by taking into account the non-exotic equation of state (EoS). In order to obtain the solutions of the matter content…

广义相对论与量子宇宙学 · 物理学 2020-07-02 Anil Kumar Yadav , Monimala Mondal , Farook Rahaman

In this article we study the structure and stability of compact astrophysical objects which are ruled by the dark energy equation of state (EoS). The existence of dark energy is important for explaining the current accelerated expansion of…

广义相对论与量子宇宙学 · 物理学 2021-08-02 Ayan Banerjee , M. K. Jasim , Anirudh Pradhan
‹ 上一页 1 8 9 10 下一页 ›