Relativistic modeling of the neutron star in Vela X-1 via Bardeen space-time satisfying the embedding condition

被引：5
作者：
Gedela, Satyanarayana [1 ]
Bisht, Ravindra K. [2 ]
Pant, Neeraj [2 ]
Upreti, Jaya [1 ]
Pant, R. P. [3 ]
机构：
[1] Kumaun Univ, Dept Math, SSJ Campus, Almora 263601, India
[2] Natl Def Acad, Dept Math, Pune 411023, Maharashtra, India
[3] Graph Era Hill Univ, Bhimtal Campus,Sattal Rd, Bhimtal 263132, India
来源：
NEW ASTRONOMY | 2021年 / 87卷
关键词：
Bardeen space-time; Karmarkar condition; Anisotropy; Compact stars; Einstein-Maxwell field equations; APPROACHING SCHWARZSCHILD LIMIT; EQUATION-OF-STATE; DYNAMICAL INSTABILITY; ANISOTROPIC STARS; CHARGED FLUID; MASS; SPHERES; COLLAPSE; CRACKING; ANALOG;
D O I：
10.1016/j.newast.2021.101583
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
In this paper, we present two new exact and analytic solutions of the Einstein-Maxwell field equations describing compact anisotropic charged stars satisfying the Karmarkar condition in the background of Bardeen black hole geometry. The solutions are composed of two parts: The inner region of the star is described by class I Karmarkar space-time, while exterior of the star is characterized by both the Bardeen and the Reissner-Nordstrom spacetimes. Physical analysis of the matter and thermodynamical variables show that the models are well-behaved. For our parametric set of values, we conclude that the Bardeen black hole metric can be used as an alternate to the exterior Reissner-Nordstrom metric.
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页数：14
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