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相关论文: Relativistic Models Of A Class Of Compact Objects

200 篇论文

We present a class of exact solutions of Einstein's gravitational field equations describing spherically symmetric and static anisotropic stellar type configurations. The solutions are obtained by assuming a particular form of the…

广义相对论与量子宇宙学 · 物理学 2009-11-07 M. K. Mak , T. Harko

A class of solutions describing the interior of a static spherically symmetric compact anisotropic star is reported. The analytic solution has been obtained by utilizing the Finch and Skea ({\it Class. Quant. Grav.} {\bf 6} (1989) 467)…

广义相对论与量子宇宙学 · 物理学 2015-06-16 Ranjan Sharma , B. S. Ratanpal

A new class of solution describing an anisotropic stellar configuration satisfying Karmarkar's condition i.e. spherically symmetric metric of embedding class 1, is reported. It has been shown that the compact star model is physically…

广义相对论与量子宇宙学 · 物理学 2017-05-24 S. K. Maurya , B. S. Ratanpal , M. Govender

We have proposed a model for relativistic compact star with anisotropy and analytically obtained exact spherically symmetric solutions describing the interior of the dense star admitting non-static conformal symmetry. Several features of…

广义相对论与量子宇宙学 · 物理学 2016-04-27 Dibyendu Shee , Farook Rahaman , B. K. Guha , Saibal Ray

A physically realistic stellar model with a simple expression for the energy density and conformally flat interior is found. The relations between the different physical conditions are used without graphic proofs. It may represnet a real…

广义相对论与量子宇宙学 · 物理学 2018-04-26 B. V. Ivanov

We studied a new class of interior solutions that are singular-free and useful for describing anisotropic compact star objects with spherically symmetric matter distribution. We have considered metric potential selecting B_0^2…

广义相对论与量子宇宙学 · 物理学 2023-10-19 B. S. Ratanpal , Rinkal Patel

We address the problem of finding static and spherically symmetric anisotropic compact stars in general relativity that admit conformal motions. The study is framed in the language of f(R) gravity theory in order to expose opportunity for…

广义相对论与量子宇宙学 · 物理学 2017-07-06 Ayan Banerjee , Sumita Banerjee , Sudan Hansraj , Ali Ovgun

We present a class of relativistic solutions of cold compact anisotropic stars in hydrostatic equilibrium in the framework of higher dimensions using spheroidal geometry. The solutions obtained with Vaidya-Tikekar metric are used to…

广义相对论与量子宇宙学 · 物理学 2015-06-23 Bikash Chandra Paul , Pradip Kumar Chattopadhyay , Shibshankar Kamakar

We demonstrate a technique to generate new class of exact solutions to the Einstein-Maxwell system describing a static spherically symmetric relativistic star with anisotropic matter distribution. An interesting feature of the new class of…

综合物理 · 物理学 2020-11-25 K. Komathiraj , Ranjan Sharma

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 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

A class of solutions of Einstein field equations satisfying Karmarkar embedding condition is presented which could describe static, spherical fluid configurations, and could serve as models for compact stars. The fluid under consideration…

广义相对论与量子宇宙学 · 物理学 2021-03-24 Lipi Baskey , Shyam Das , Farook Rahaman

In the present investigation an exact generalized model for anisotropic compact stars of embedding class one is sought for under general relativistic background. The generic solutions are verified by exploring different physical aspects,…

综合物理 · 物理学 2017-02-01 S. K. Maurya , Y. K. Gupta , Saibal Ray , Debabrata Deb

We describe a novel class of geometrical models of relativistic stars. Our approach to the static spherically symmetric solutions of Einstein equations is based on a careful physical analysis of radial gauge conditions. It brings us to a…

天体物理学 · 物理学 2007-05-23 P. P. Fiziev

The main goal of this work is to provide a comprehensive study of relativistic structures in the context of recently proposed {$\mathcal{R}+ \alpha \mathcal{A}$} gravity, where $\mathcal{R}$ is the Ricci scalar, and $\mathcal{A}$ is the…

广义相对论与量子宇宙学 · 物理学 2023-04-11 M. Farasat Shamir , Eesha Meer

We obtain well behaved interior solutions describing hydrostatic equilibrium of anisotropic relativistic stars in scale-dependent gravity, where Newton's constant is allowed to vary with the radial coordinate throughout the star. Assuming…

广义相对论与量子宇宙学 · 物理学 2021-01-26 Grigoris Panotopoulos , Angel Rincon , Ilidio Lopes

In this paper, we found new classes of solutions to the Einstein-Maxwell field equations with matter anisotropic distribution incorporating a particular form of electric field intensity within the framework of general relativity. We use a…

广义相对论与量子宇宙学 · 物理学 2023-10-03 Manuel Malaver , Rajan Iyer

We present a spherically symmetric solution of the general relativistic field equations in isotropic coordinates for charged fluid with pressure anisotropy, compatible with a super dense star modeling. Further, we have constructed an…

综合物理 · 物理学 2015-02-12 Ksh. Newton Singh , Narendra Pradhan , Manuel Malaver

We study the gravitational behaviour of a spherically symmetric radiating star when the fluid particles are in geodesic motion. We transform the governing equation into a simpler form which allows for a general analytic treatment. We find…

广义相对论与量子宇宙学 · 物理学 2009-11-13 S. Thirukkanesh , S. D. Maharaj

We present a spherically symmetric solution of the general relativistic field equations in isotropic coordinates for anisotropic neutral fluid, compatible with a super dense star modeling by considering a specific choice of anisotropy…

广义相对论与量子宇宙学 · 物理学 2014-10-23 Neeraj Pant , Narendra Pradhan , Manuel Malaver