Charged anisotropic gravitational decoupled strange stars via complexity factor

This paper develops a charged anisotropic spherically symmetric strange star model by constructing an exact solution of the field equations through the gravitational decoupling approach. We employ minimal geometric deformation through which the initial decoupled system is divided into Einstein–Maxwe...

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Bibliographic Details
Published in:Chinese journal of physics (Taipei) 2022-10, Vol.79, p.348-361
Main Authors: Sadiq, S., Saleem, Rabia
Format: Article
Language:English
Subjects:
Anisotropy
Exact solutions
Gravitational decoupling
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Summary:This paper develops a charged anisotropic spherically symmetric strange star model by constructing an exact solution of the field equations through the gravitational decoupling approach. We employ minimal geometric deformation through which the initial decoupled system is divided into Einstein–Maxwell and quasi-Einstein systems. We choose a known solution for isotropic spherical matter distribution with MIT bag equation of state including electromagnetic field and generalize it to an anisotropic model by solving quasi-Einstein field equations using complexity factor. We study the physical viability of the resulting charged anisotropic solution by plotting metric functions, density, pressure, anisotropy parameter, energy conditions, and stability criterion for the strange star candidates SAXJ1808.4-658,SMCX-1,4U1538-52 as well as HERX-1. It is noticed that all the physical aspects are well-behaved, ensuring the physical acceptability of the developed models. [Display omitted] •Gravitational decoupling idea is considered to model charged anisotropic strange star.•To find exact solutions of field equations, a known isotropic charged spherical solution is considered.•The quasi-Einstein equations are solved using complexity factor.•The graphical behavior of physical parameters is analyzed.•The developed models are viable as physical aspects are well-behaved.
ISSN:0577-9073
DOI:10.1016/j.cjph.2022.07.017