English

A New Anisotropic Compact Star Model having Matese \& Whitman Mass Function

General Relativity and Quantum Cosmology 2016-11-01 v2

Abstract

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 ρ\rho, prp_r and ptp_t all are well behaved inside the stellar interior and our model satisfies all the required conditions to be physically acceptable. The model given in the present work is compatible with observational data of compact objects like SAX J 1808.4-3658 (SS1), SAX J 1808.4-3658 (SS2) and 4U 1820-30. A particular model of 4U 1820-30 is studied in detail and found that it satisfies all the condition needed for physically acceptable model. The present work is the generalization of Sharma and Ratanpal\cite{sharma13} model for compact stars admitting quadratic equation of state.

Keywords

Cite

@article{arxiv.1511.06962,
  title  = {A New Anisotropic Compact Star Model having Matese \& Whitman Mass Function},
  author = {Piyali Bhar and B. S. Ratanpal},
  journal= {arXiv preprint arXiv:1511.06962},
  year   = {2016}
}

Comments

14 pages, 2 tables and 12 figures, communicated in IJMPD

R2 v1 2026-06-22T11:51:23.475Z