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A Tolman-like Compact Model with Conformal Geometry

In this investigation, we study a model of a charged anisotropic compact star by assuming a relationship between the metric functions arising from a conformal symmetry. This mechanism leads to a first-order differential equation containing pressure anisotropy and the electric field. Particular forms...

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Detalles Bibliográficos
Autores principales: Kileba Matondo, Didier, Maharaj, Sunil D.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8622327/
https://www.ncbi.nlm.nih.gov/pubmed/34828104
http://dx.doi.org/10.3390/e23111406
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author Kileba Matondo, Didier
Maharaj, Sunil D.
author_facet Kileba Matondo, Didier
Maharaj, Sunil D.
author_sort Kileba Matondo, Didier
collection PubMed
description In this investigation, we study a model of a charged anisotropic compact star by assuming a relationship between the metric functions arising from a conformal symmetry. This mechanism leads to a first-order differential equation containing pressure anisotropy and the electric field. Particular forms of the electric field intensity, combined with the Tolman VII metric, are used to solve the Einstein–Maxwell field equations. New classes of exact solutions generated are expressed in terms of elementary functions. For specific parameter values based on the physical requirements, it is shown that the model satisfies the causality, stability and energy conditions. Numerical values generated for masses, radii, central densities, surface redshifts and compactness factors are consistent with compact objects such as PSR J1614-2230 and SMC X-1.
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spelling pubmed-86223272021-11-27 A Tolman-like Compact Model with Conformal Geometry Kileba Matondo, Didier Maharaj, Sunil D. Entropy (Basel) Article In this investigation, we study a model of a charged anisotropic compact star by assuming a relationship between the metric functions arising from a conformal symmetry. This mechanism leads to a first-order differential equation containing pressure anisotropy and the electric field. Particular forms of the electric field intensity, combined with the Tolman VII metric, are used to solve the Einstein–Maxwell field equations. New classes of exact solutions generated are expressed in terms of elementary functions. For specific parameter values based on the physical requirements, it is shown that the model satisfies the causality, stability and energy conditions. Numerical values generated for masses, radii, central densities, surface redshifts and compactness factors are consistent with compact objects such as PSR J1614-2230 and SMC X-1. MDPI 2021-10-26 /pmc/articles/PMC8622327/ /pubmed/34828104 http://dx.doi.org/10.3390/e23111406 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Kileba Matondo, Didier
Maharaj, Sunil D.
A Tolman-like Compact Model with Conformal Geometry
title A Tolman-like Compact Model with Conformal Geometry
title_full A Tolman-like Compact Model with Conformal Geometry
title_fullStr A Tolman-like Compact Model with Conformal Geometry
title_full_unstemmed A Tolman-like Compact Model with Conformal Geometry
title_short A Tolman-like Compact Model with Conformal Geometry
title_sort tolman-like compact model with conformal geometry
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8622327/
https://www.ncbi.nlm.nih.gov/pubmed/34828104
http://dx.doi.org/10.3390/e23111406
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