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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...
Autores principales: | , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2021
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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. |
format | Online Article Text |
id | pubmed-8622327 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
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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