Compact objects by gravitational decoupling in f(R) gravity
Abstract 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-linea...
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Online Access: | https://doi.org/10.1140/epjc/s10052-021-09436-7 |
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doaj-b00b3de2ec2a4b489d354d2774e5658e2021-07-25T11:12:44ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60441434-60522021-07-0181711710.1140/epjc/s10052-021-09436-7Compact objects by gravitational decoupling in f(R) gravityM. Sharif0Mariyah Aslam1Department of Mathematics, University of the PunjabDepartment of Mathematics, University of the PunjabAbstract 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.https://doi.org/10.1140/epjc/s10052-021-09436-7 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
M. Sharif Mariyah Aslam |
spellingShingle |
M. Sharif Mariyah Aslam Compact objects by gravitational decoupling in f(R) gravity European Physical Journal C: Particles and Fields |
author_facet |
M. Sharif Mariyah Aslam |
author_sort |
M. Sharif |
title |
Compact objects by gravitational decoupling in f(R) gravity |
title_short |
Compact objects by gravitational decoupling in f(R) gravity |
title_full |
Compact objects by gravitational decoupling in f(R) gravity |
title_fullStr |
Compact objects by gravitational decoupling in f(R) gravity |
title_full_unstemmed |
Compact objects by gravitational decoupling in f(R) gravity |
title_sort |
compact objects by gravitational decoupling in f(r) gravity |
publisher |
SpringerOpen |
series |
European Physical Journal C: Particles and Fields |
issn |
1434-6044 1434-6052 |
publishDate |
2021-07-01 |
description |
Abstract 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. |
url |
https://doi.org/10.1140/epjc/s10052-021-09436-7 |
work_keys_str_mv |
AT msharif compactobjectsbygravitationaldecouplinginfrgravity AT mariyahaslam compactobjectsbygravitationaldecouplinginfrgravity |
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1721283449511215104 |