Analytical model of strange star in the low-mass X-ray binary 4U 1820-30
General Relativity and Quantum Cosmology
2015-06-18 v2
Abstract
In this article, we have proposed a model for a realistic strange star under Tolman VII metric\citep{Tolman1939}. Here the field equations are reduced to a system of three algebraic equations for anisotropic pressure. Mass, central density and surface density of strange star in the low-mass X-ray binary 4U 1820-30 has been matched with the observational data according to our model. Strange materials clearly satisfies the stability condition (i.e. sound velocities < 1) and TOV-equation. Here also surface red shift of the star has been found to be within reasonable limit.
Keywords
Cite
@article{arxiv.1401.0835,
title = {Analytical model of strange star in the low-mass X-ray binary 4U 1820-30},
author = {Mehedi Kalam and Farook Rahaman and Sajahan Molla and Md. Abdul Kayum Jafry and Sk. Monowar Hossein},
journal= {arXiv preprint arXiv:1401.0835},
year = {2015}
}
Comments
Some revisions have been made. Accepted in Eur.Phys.J.C