A new model for dark matter fluid sphere
Abstract
We develop a new model for a spherically symmetric dark matter fluid sphere containing two regions: {\bf (i)} Isotropic inner region with constant density and {\bf (ii)} Anisotropic outer region. We solve the system of field equation by assuming a particular density profile along with a linear equation of state. The obtained solutions are well-behaved and physically acceptable which represent equilibrium and stable matter configuration by satisfying the TOV equation and causality condition, condition on adiabatic index, Harrison-Zeldovich-Novikov criterion, respectively. We consider the compact star EXO 1785-248 (Mass and radius ) to analyze our solutions by graphical demonstrations.
Cite
@article{arxiv.2010.13785,
title = {A new model for dark matter fluid sphere},
author = {Shyam Das and Nayan Sarkar and Monimala Mondal and Farook Rahaman},
journal= {arXiv preprint arXiv:2010.13785},
year = {2020}
}
Comments
11 pages, 11 figures, 2 tables. Accepted in Mod.Phys.Lett.A