Hybrid Charged Stellar Model Via Embedding and Gravitational Decoupling

被引:13
|
作者
Gedela, Satyanarayana [1 ]
Pant, Neeraj [2 ]
Govender, Megandhren [3 ]
机构
[1] Kumaun Univ, Dept Math, SSJ Campus, Almora 263601, India
[2] Natl Def Acad, Dept Math, Pune 411023, Maharashtra, India
[3] Univ Technol, Fac Sci Appl, Dept Math, Durban, South Africa
关键词
Gravitational decoupling; Exact solution; General relativity; Compact star; Anisotropy; MINIMAL GEOMETRIC DEFORMATION; APPROACHING SCHWARZSCHILD LIMIT; ANISOTROPIC STRANGE STARS; COMPACT STAR; DYNAMICAL INSTABILITY; FLUID SPHERE; RELATIVISTIC MODEL; GENERAL-RELATIVITY; MAXIMUM MASS; ANALOGS;
D O I
10.1007/s13538-021-00942-3
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
In this paper, we present a new exact anisotropic charged version of Pant's interior solution [Astrophys. Space Sci. 331, 633 (2011)] by employing the embedding class I condition and the gravitational decoupling via minimal geometric decoupling (MGD) approach. We successfully integrate the coupled Einstein-Maxwell field equations within the MGD and generate a family of new charged anisotropic solutions describing compact stellar objects. The matching of the interior to the exterior Reissner-Nordstrom solution help fix the arbitrary constants. For a chosen parameter space we subject our model to rigorous tests in order to validate its physical viability as a realistic self-gravitating, compact object. We show that the deformation parameter sigma is intrinsically connected to key features such as compactness, mass-to-radius ratio and surface redshift for compact star candidates such as Her X-1, EXO 1785-248, PSR J1614-2230 and SAX J1808.4-3658.
引用
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页码:1371 / 1405
页数:35
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