Extended gravitational decoupled charged anisotropic solutions

Sharif, M.; Ama-Tul-Mughani, Qanitah

doi:10.1016/j.cjph.2020.01.015

Cited by 28 publications

(13 citation statements)

References 32 publications

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“…However, the large values of charge may yield unstable system analogous to the first solution. We would like to mention here that this technique provides unstable solution corresponding to the density-like constraint in GR [59,60] as well as f (G) theory [61]. However, our resulting solutions show physically stable behavior even for larger values of ζ.…”

Section: Discussionmentioning

confidence: 76%

“…Through this scheme, Contreras and Bargueño [58] presumed vacuum BTZ solution corresponding to the 2 + 1-dimensional geometry and found its extension for the charged case. Sharif and Ama-Tul-Mughani have employed this method along with the isotropic Tolman IV [59] as well as charged Krori-Barua [60] anstaz and constructed various anisotropic solutions. Sharif and Saba [61] calculated anisotropic spherical solutions by considering Tolman IV in f (G) gravity.…”

Section: Introductionmentioning

confidence: 99%

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Influence of Charge on Extended Decoupled Anisotropic Solutions in $f(\mathcal{R},\mathcal{T},\mathcal{R}_{λξ}\mathcal{T}^{λξ})$ Gravity

Sharif,

Naseer

2022

Preprint

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In this paper, we consider static self-gravitating spherical spacetime and determine various anisotropic solutions through the extended gravitational decoupling technique in f (R, T , R λξ T λξ ) gravity to analyze the influence of electromagnetic field on them. We construct two different sets of modified field equations by employing the transformations on both radial as well as temporal metric potentials. The first set symbolizes the isotropic fluid distribution, thus we take Krori-Barua solution to deal with it. The indefinite second sector comprises the influence of anisotropy. In this regard, we apply some constraints to determine unknowns. Further, we observe the impact of charge as well as decoupling parameter ζ on the developed physical variables (such as energy density, radial and tangential pressures) and anisotropy. We also analyze other physical features of the compact geometry like mass, compactness and redshift along with the energy conditions. Eventually, we find that our both solutions show less stable behavior for higher values of charge near the boundary in this gravity.

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Section: Discussionmentioning

confidence: 76%

Section: Introductionmentioning

confidence: 99%

Influence of Charge on Extended Decoupled Anisotropic Solutions in $f(\mathcal{R},\mathcal{T},\mathcal{R}_{λξ}\mathcal{T}^{λξ})$ Gravity

Sharif,

Naseer

2022

Preprint

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“…Sharif and Ama-Tul-Mughani [29] extended charged Krori-Barua solution to the anisotropic domain via the EGD scheme in GR and deduced that the solutions corresponding to both constraints are physically viable and stable. The viability of the extended solutions is preserved in f (R) gravity while stability is preserved for pressure-like constraint only.…”

Section: Discussionmentioning

confidence: 99%

Compact objects by gravitational decoupling in f(R) gravity

Sharif

Aslam

2021

Eur. Phys. J. C

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The objective of this paper is to discuss anisotropic solutions representing static spherical self-gravitating systems in f(R) theory. We employ the extended gravitational decoupling approach and transform temporal as well as radial metric potentials which decomposes the system of non-linear field equations into two arrays: one set corresponding to seed source and the other one involves additional source terms. The domain of the isotropic solution is extended in the background of f(R) Starobinsky model by employing the metric potentials of Krori–Barua spacetime. We determine two anisotropic solutions by employing some physical constraints on the extra source. The values of unknown constants are computed by matching the interior and exterior spacetimes. We inspect the physical viability, equilibrium and stability of the obtained solutions corresponding to the star Her X-I. It is observed that one of the two extensions satisfies all the necessary physical requirements for particular values of the decoupling parameter.

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“…Sharif and Ama-Tul-Mughani [28] extended charged Krori-Barua solution to the anisotropic domain via the EGD scheme in GR and deduced that the solutions corresponding to both constraints are physically viable and stable. The viability of the extended solutions is preserved in f (R) gravity while stability is preserved for pressure-like constraint only.…”

Section: Discussionmentioning

confidence: 99%

“…Contreras and Bargueño [26] used this technique in (2 + 1)-dimensional gravity and obtained exterior charged BTZ solution from its vacuum counterpart. Sharif and Ama-Tul-Mughani employed EGD approach to compute anisotropic solutions corresponding to Tolman IV [27] and Krori-Barua [28] solutions.…”

Section: Introductionmentioning

confidence: 99%

Compact Objects by Gravitational Decoupling in f(R) Gravity

Sharif,

Aslam

2021

Preprint

Self Cite

View full text Add to dashboard Cite

The objective of this paper is to discuss anisotropic solutions representing static spherical self-gravitating systems in f (R) theory. We employ the extended gravitational decoupling approach and transform temporal as well as radial metric potentials which decomposes the system of non-linear field equations into two arrays: one set corresponding to seed source and the other one involves additional source terms. The domain of the isotropic solution is extended in the background of f (R) Starobinsky model by employing the metric potentials of Krori-Barua spacetime. We determine two anisotropic solutions by employing some physical constraints on the extra source. The values of unknown constants are computed by matching the interior and exterior spacetimes. We inspect the physical viability, equilibrium and stability of the obtained solutions corresponding to the star Her X-I. It is observed that one of the two extensions satisfies all the necessary physical requirements for particular values of the decoupling parameter.

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Extended gravitational decoupled charged anisotropic solutions

Cited by 28 publications

References 32 publications

Influence of Charge on Extended Decoupled Anisotropic Solutions in $f(\mathcal{R},\mathcal{T},\mathcal{R}_{λξ}\mathcal{T}^{λξ})$ Gravity

Influence of Charge on Extended Decoupled Anisotropic Solutions in $f(\mathcal{R},\mathcal{T},\mathcal{R}_{λξ}\mathcal{T}^{λξ})$ Gravity

Compact objects by gravitational decoupling in f(R) gravity

Compact Objects by Gravitational Decoupling in f(R) Gravity

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