English

Modified Finch and Skea stellar model compatible with observational data

General Physics 2014-11-24 v1

Abstract

We present a new class of solutions to the Einstein's field equations corresponding to a static spherically symmetric anisotropic system by generalizing the ansatz of Finch and Skea [Class. Quantum Grav. 6 (1989) 467] for the gravitational potential grrg_{rr}. The anisotropic stellar model previously studied by Sharma and Ratanpal (2013) [Int. J. Mod. Phy. D 13 (2013) 1350074] is a sub-class of the solutions provided here. Based on physical requirements, regularity conditions and stability, we prescribe bounds on the model parameters. By systematically fixing values of the model parameters within the prescribed bound, we demonstrate that our model is compatible with the observed masses and radii of a wide variety of compact stars like 4U 1820-30, PSR J1903+327, 4U 1608-52, Vela X-1, PSR J1614-2230, SAX J1808.4-3658 and Her X-1.

Keywords

Cite

@article{arxiv.1411.5674,
  title  = {Modified Finch and Skea stellar model compatible with observational data},
  author = {D. M. Pandya and V. O. Thomas and R. Sharma},
  journal= {arXiv preprint arXiv:1411.5674},
  year   = {2014}
}

Comments

This Article is accepted for publication in Astrophys. Space Sci -- It contains 7 Figures, 1 Table, 10 Pages

R2 v1 2026-06-22T07:06:27.583Z