Singularity free anisotropic strange quintessence star

TL;DR

This paper introduces a new, singularity-free anisotropic strange star model incorporating quintessence, matching observational data and demonstrating stability through solutions of Einstein's equations with the Krori Barua ansatz.

Contribution

The study develops a novel anisotropic strange star model with quintessence, solving Einstein's equations without central singularities and aligning with observational data.

Findings

Model is free from central singularity.

Predicted star masses closely match observational data.

Model demonstrates potential stability.

Abstract

Present paper provides a new model of anisotropic strange star corresponding to the exterior schwarzschild metric. The Einstein field equations have been solved by utilizing the Krori Barua (KB) ansatz in presence of quintessence field characterized by a parameter omegaq . The obtained solutions are free from central singularity. Our model is potentially stable.The numerical values of mass of the different strange stars SAXJ1808.4-3658(SS1)(radius=7.07 km),4U1820- 30 (radius=10 km),Vela X-12 (radius=9.99 km),PSR J 1614-2230 (radius=10.3 km) obtained from our model is very close to the observational data that confirms the validity of our proposed model. The interior solution is also matched to the exterior Schwarzschild spacetime in presence of thin shell where negative surface pressure is required to hold the thin shell against collapse.