Impact of Charge on Strange Compact Stars in Rastall Theory

被引:0
作者
Sallah, Malick [1 ,2 ]
Sharif, Muhammad [1 ]
机构
[1] Univ Lahore, Dept Math & Stat, 1-KM Def Rd, Lahore 54000, Pakistan
[2] Univ Gambia, Dept Math, POB 3530, Serrekunda, Gambia
关键词
MIT bag model; Rastall theory; quark stars; 04.40.Dg; 04.40.-b; 04.50.Kd; CRACKING; GRAVITY; MODEL; MASS;
D O I
10.3390/universe11010025
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
Within the framework of Rastall theory, we investigate the impact of charge on the structural development of different types of spherically symmetric anisotropic stars. To do so, we present modified field equations based upon the Finch-Skea metric potentials expressed in terms of three parameters (A,B,C). These constants are determined using suitable matching conditions and observational data for compact objects which include Her X-1, SAX J 1808.4-3658, PSR J038-0842, LMC X-4 and SMC X-1. The equation of state offered by the MIT bag model for quark-gluon plasma is used to investigate the inner structure and other characteristics of these compact objects. For a fixed bag constant, B=60MeV/fm3, and two sets of the Rastall and charge parameters, zeta=0.255,0.259 and Q=0.2,0.7, respectively, we analyze the consistency of the matter variables in the model and other physical parameters such as energy conditions, stellar mass, compactness, and surface redshift. In addition, we assess the stability of the constructed model through two different approaches. It is found that the obtained model is physically viable and stable.
引用
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页数:20
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