Uncharged and charged anisotropic like-Durgapal stellar models with vanishing complexity

Contreras, Ernesto; Fuenmayor, E.; Abellán, Gabriel

doi:10.1140/epjc/s10052-022-10154-x

Cited by 34 publications

(12 citation statements)

References 79 publications

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“…However, this work differs from [85] since the extra condition used to close the EFE system is the vanishing complexity for self-gravitating spheres fluids (see Refs. [96][97][98][99][100][101] where this condition is used in order to obtain new static and spherically symmetric solutions).…”

Section: Introductionmentioning

confidence: 99%

An anisotropic extension of Heintzmann IIa solution with vanishing complexity factor

Andrade

2022

Eur. Phys. J. C

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This work is devoted to the construction of a new static and spherical solution for an anisotropic fluid distribution. The construction is based in the framework of gravitational decoupling through a particular case of the extended minimal geometric deformation called 2-steps GD. In this sense, the differential equations arising from gravitational decoupling are closed using the vanishing complexity factor. The Heintzmann IIa solution is used as seed solution. The solution fulfills the fundamental physical acceptability conditions for a restricted set of compactness parameters.

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Section: Introductionmentioning

confidence: 99%

An anisotropic extension of Heintzmann IIa solution with vanishing complexity factor

Andrade

2022

Eur. Phys. J. C

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“…The relaxation of the stringent condition of isotropic fluid distribution makes that system anisotropic, constituting a more realistic situation according to the astrophysical viewpoint [33]. This article considers anisotropic matter distribution, therefore we may consider some other possible features in the inner stellar composition, for example an electric charge.…”

Section: Introductionmentioning

confidence: 99%

Study of Charged Compact Stars in Non-minimally Coupled Gravity

Sharif,

Naseer

2023

Preprint

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This paper studies the structural formation of various spherically symmetric anisotropic configured stars in f (R, T , Q) gravity under the influence of electromagnetic field, where Q = R ησ T ησ . We construct modified field equations by adopting the Krori-Barua metric potentials (involving unknowns (A, B, C)) and employ bag model equation of state to explore the physical characteristics of compact structures like Vela X-I, 4U 1820-30, SAX J 1808.4-3658, Her X-I and RXJ 1856-37. The bag constant (B c ) and other three unknowns are calculated by using experimental data of all considered stars. Further, we adopt a standard model R+ ̟R ησ T ησ to interpret the graphical behavior of energy density, pressure in radial and tangential directions as well as anisotropy. We also investigate mass, compactness parameter, surface redshift and energy conditions for compact bodies by taking model parameter (̟) as ±5. The stability of the obtained solution is examined by means of two different criteria. We conclude that our proposed solution meets all the physical requirements and shows stable behavior everywhere for ̟ = 5.

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“…They came to the conclusion that Tolman's mass in this scenario reflects negative nature. Furthermore, many researchers have effectively employed this complexity approach not only in GR [91][92][93][94][95], but also in the analysis of findings for various geometries in the context of modified theory of gravity [96][97][98].…”

Section: Introductionmentioning

confidence: 99%

A simple protocol for anisotropic generalization of Finch–Skea model by gravitational decoupling satisfying vanishing complexity factor condition

et al. 2022

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A physically reasonable anisotropic stellar model is constructed with the help of the gravitational decoupling via complete geometric deformation (CGD) technique under the condition of vanishing complexity factor [Contreras and Stuchlik in Eur Phys J C 82:706 2022; Herrera, in Phys Rev D 97:044010, 2018]. The source splits into a perfect fluid and an anisotropic distribution. The Finch Skea metric proves a useful seed solution to solve the Einstein sector while the condition of vanishing complexity is invoked to solve the remaining anisotropic system of equations. A comprehensive battery of tests for physical significance is imposed on the model. Through a careful choice of parameter space, it is demonstrated that the model is regular, stable, and contains a surface of vanishing pressure establishing its boundary. Matching with the exterior metric is also achieved. Finally, the energy flows between the two sectors of the source fluid are studied graphically.

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Uncharged and charged anisotropic like-Durgapal stellar models with vanishing complexity

Cited by 34 publications

References 79 publications

An anisotropic extension of Heintzmann IIa solution with vanishing complexity factor

An anisotropic extension of Heintzmann IIa solution with vanishing complexity factor

Study of Charged Compact Stars in Non-minimally Coupled Gravity

A simple protocol for anisotropic generalization of Finch–Skea model by gravitational decoupling satisfying vanishing complexity factor condition

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