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相关论文: Modified Finch and Skea stellar model compatible w…

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We present an entirely new class of solutions to Einstein's field equations that correspond to a static spherically symmetric anisotropic system by generalizing the Finch and Skea ansatz using the linear equation of state for the…

广义相对论与量子宇宙学 · 物理学 2023-07-24 Rinkal Patel , B. S. Ratanpal , D. M. Pandya

In this study, we demonstrate a new anisotropic solution to the Einstein field equations in Finch-Skea spacetime. The physical features of stellar configuration are studied in previous investigations. We create a model that meets all…

广义相对论与量子宇宙学 · 物理学 2023-06-28 Ankita Jangid , B. S. Ratanpal , K Venkataratnam Kamma

A new class of solutions for Einstein's field equations representing a static spherically symmetric anisotropic distribution of matter is obtained on the background of pseudo-spheroidal spacetime. We have prescribed the bounds of the model…

广义相对论与量子宇宙学 · 物理学 2015-12-09 V. O. Thomas , D. M. Pandya

In this paper, the spacetime geometry of Finch and Skea [Class. Quantum Grav., 6 (1989) 467] has been utilized to obtain closed-form solutions for a spherically symmetric anisotropic matter distribution. By examining its physical…

综合物理 · 物理学 2017-11-23 Ranjan Sharma , Shyam Das , S. Thirukkanesh

A new singularity free model of anisotroipic compact star is proposed. The Einstein field equations are solved in closed form by utilizing Matese \& Whitman mass function. The model parameters $\rho$, $p_r$ and $p_t$ all are well behaved…

广义相对论与量子宇宙学 · 物理学 2016-11-01 Piyali Bhar , B. S. Ratanpal

We have presented a new anisotropic solution of Einstein's field equations for compact star models. The Einstein's field equations are solved by using the class one condition \cite{1}. After that we constructed the physically valid…

广义相对论与量子宇宙学 · 物理学 2016-08-01 S. K. Maurya , Smitha T. T. , Y. K. Gupta , Farook Rahaman

A new class of exact solutions of Einstein's field equations representing anisotropic distribution of matter on pseudo-spheroidal spacetime is obtained. The parameters appearing in the model are restricted through physical requirements of…

广义相对论与量子宇宙学 · 物理学 2016-04-06 B. S. Ratanpal , V. O. Thomas , D. M. Pandya

A new model of anisotropic compact star is obtained in our present paper by assuming the pressure anisotropy. The proposed model is singularity free. The model is obtained by considering a physically reasonable choice for the metric…

广义相对论与量子宇宙学 · 物理学 2021-07-08 Piyali Bhar , Pramit Rej

Several new families of exact solution to the Einstein-Maxwell system of differential equations are found for anisotropic charged matter. The spacetime geometry is that of Finch and Skea which satisfies all criteria for physical…

广义相对论与量子宇宙学 · 物理学 2017-02-15 S. D. Maharaj , D. Kileba Matondo , P. Mafa Takisa

The popularity of the Finch-Skea ansatz to describe relativistic stellar model have encouraged us to study the analytic solutions of the Einstein field equation. We have presented a class of exact solutions to the field equations after…

广义相对论与量子宇宙学 · 物理学 2021-07-14 Shyam Das , Koushik Chakraborty , Lipi Baskey , Saibal Ray

In this work, we present a class of relativistic and well-behaved solution to Einstein's field equations for anisotropic matter distribution. We perform our analysis by using the Buchdahl ansatz for the metric function grr. Three different…

广义相对论与量子宇宙学 · 物理学 2022-03-29 Amit Kumar Prasad , Jitendra Kumar

New exact solutions of Einstein's field equations for charged stellar models by assuming linear equation of state $ P_r=A(\rho-\rho_{a}) $, where $ P_r $ is the radial pressure and $ \rho_{a} $ is the surface density. By assuming $…

广义相对论与量子宇宙学 · 物理学 2023-07-26 Rinkal Patel , B. S. Ratanpal , D. M. Pandya

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

In this work, an exact solution of Einstein's field equations in isotropic coordinates for anisotropic matter distribution is obtained by considering a particular metric choice of metric potential $g_{rr}$. To check the feasibility of the…

广义相对论与量子宇宙学 · 物理学 2022-06-29 B. S. Ratanpal , Bhavesh Suthar

Present paper deals with the composition and modelling of compact dense astrophysical bodies under the framework of $f(R)$ gravity. The model is employed on various observed strange stars viz., SMC X-1, SAX J1808.4-3658, Swift J1818.0-1607,…

广义相对论与量子宇宙学 · 物理学 2020-08-12 B. Thakore , R. Goti , S. Shah , H. Pandya , D. M. Pandya

In this article, we present a class of relativistic solutions describing spherically symmetric and static anisotropic stars in hydrostatic equilibrium. For this purpose, we consider a particularized matric potential, namely, Buchdahl ansatz…

广义相对论与量子宇宙学 · 物理学 2021-08-03 S. K. Maurya , Ayan Banerjee , M. K. Jasim , J. Kumar , A. K. Prasad , Anirudh Pradhan

A family of solutions defining the interior of a static, spherically symmetric, compact anisotropic star is described by considering a new form of the equation of state (EOS). The analytic solution is derived by using the Finch and Skea…

广义相对论与量子宇宙学 · 物理学 2024-02-09 R. Sharma , B. S. Ratanpal , Rinkal Patel

We present a new class of spherically symmetric spacetimes for matter distributions with anisotropic pressures in the presence of an electric field. The equation of state for the matter distribution is linear. A class of new exact solutions…

广义相对论与量子宇宙学 · 物理学 2016-01-06 Sifiso A. Ngubelanga , Sunil D. Maharaj , Subharthi Ray

We present a new class of solutions to the Einstein field equations for an anisotropic matter distribution in which the interior space-time obeys the Karmarkar condition. The necessary and sufficient condition required for a spherically…

综合物理 · 物理学 2017-01-10 Ksh. Newton Singh , Neeraj Pant , M. Govender

In this article we obtain a new anisotropic solution for Einstein's field equation of embedding class one metric. The solution is representing the realistic objects such as $Her~X-1$ and $RXJ~1856-37$. We perform detailed investigation of…

综合物理 · 物理学 2016-04-27 S. K. Maurya , Y. K. Gupta , Baiju Dayanandan , Saibal Ray
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