Charged Vaidya-Tikekar model for super compact star
Abstract
In this work, we explore a class of compact charged spheres that have been tested against experimental and observational constraints with some known compact stars candidates. The study is performed by considering the self-gravitating, charged, isotropic fluids which is more pliability in solving the Einstein-Maxwell equations. In order to determine the interior geometry, we utilize the Vaidya-Tikekar geometry for the metric potential with Riessner-Nordstrom metric as an exterior solution. In this models, we determine constants after selecting some particular values of M and R, for the compact objects SAX J1808.4-3658, Her X-1 and 4U 1538-52. The most striking consequence is that hydrostatic equilibrium is maintained for different forces, and the situation is clarified by using the generalized Tolman-Oppenheimer-Volkoff (TOV) equation. In addition to this, we also present the energy conditions, speeds of sound and compactness of stars that are very much compatible to that for a physically acceptable stellar model. Arising solutions are also compared with graphical representations that provide strong evidences for more realistic and viable models, both at theoretical and astrophysical scale.
Cite
@article{arxiv.1801.01407,
title = {Charged Vaidya-Tikekar model for super compact star},
author = {Jitendra Kumar and Amit Kumar Prasad and S. K. Maurya and Ayan Banerjee},
journal= {arXiv preprint arXiv:1801.01407},
year = {2018}
}
Comments
13 Pages, 5 Figures and 4 Tables