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A generalized class one static solution

In literature, there are three simplest methods of solving Einstein's field equations, namely, (a) assuming conformally flat spacetime, (b) using conformal killing vector and (c) using Karmarkar conditions. In all these approaches the two metric functions [Formula: see text] and [Formula: see t...

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Autores principales: Singh, Ksh. Newton, Bhar, Piyali, Laishram, Modhuchandra, Rahaman, Farook
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Elsevier 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6700344/
https://www.ncbi.nlm.nih.gov/pubmed/31440586
http://dx.doi.org/10.1016/j.heliyon.2019.e01929
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author Singh, Ksh. Newton
Bhar, Piyali
Laishram, Modhuchandra
Rahaman, Farook
author_facet Singh, Ksh. Newton
Bhar, Piyali
Laishram, Modhuchandra
Rahaman, Farook
author_sort Singh, Ksh. Newton
collection PubMed
description In literature, there are three simplest methods of solving Einstein's field equations, namely, (a) assuming conformally flat spacetime, (b) using conformal killing vector and (c) using Karmarkar conditions. In all these approaches the two metric functions [Formula: see text] and [Formula: see text] are link via a bridge. However, the first two approaches are facing a critical failure while determining central red-shift while the last method always yields well-behaved solution. Therefore, we are adopting the last method and discover a generalized class one solution. It is found that the maximum mass and radius of the compact star describe by the solution strongly depends on the parameter n. As n increases the maximum mass and radius also increases. For [Formula: see text] , [Formula: see text] and [Formula: see text] , and for [Formula: see text] have [Formula: see text] with [Formula: see text]. For [Formula: see text] the equation of state is behaving linearly as the speed of sound is almost constant at 0.333. In overall the presented solution is well-behaved in all respects.
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spelling pubmed-67003442019-08-22 A generalized class one static solution Singh, Ksh. Newton Bhar, Piyali Laishram, Modhuchandra Rahaman, Farook Heliyon Article In literature, there are three simplest methods of solving Einstein's field equations, namely, (a) assuming conformally flat spacetime, (b) using conformal killing vector and (c) using Karmarkar conditions. In all these approaches the two metric functions [Formula: see text] and [Formula: see text] are link via a bridge. However, the first two approaches are facing a critical failure while determining central red-shift while the last method always yields well-behaved solution. Therefore, we are adopting the last method and discover a generalized class one solution. It is found that the maximum mass and radius of the compact star describe by the solution strongly depends on the parameter n. As n increases the maximum mass and radius also increases. For [Formula: see text] , [Formula: see text] and [Formula: see text] , and for [Formula: see text] have [Formula: see text] with [Formula: see text]. For [Formula: see text] the equation of state is behaving linearly as the speed of sound is almost constant at 0.333. In overall the presented solution is well-behaved in all respects. Elsevier 2019-08-08 /pmc/articles/PMC6700344/ /pubmed/31440586 http://dx.doi.org/10.1016/j.heliyon.2019.e01929 Text en © 2019 Published by Elsevier Ltd. http://creativecommons.org/licenses/by-nc-nd/4.0/ This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
spellingShingle Article
Singh, Ksh. Newton
Bhar, Piyali
Laishram, Modhuchandra
Rahaman, Farook
A generalized class one static solution
title A generalized class one static solution
title_full A generalized class one static solution
title_fullStr A generalized class one static solution
title_full_unstemmed A generalized class one static solution
title_short A generalized class one static solution
title_sort generalized class one static solution
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6700344/
https://www.ncbi.nlm.nih.gov/pubmed/31440586
http://dx.doi.org/10.1016/j.heliyon.2019.e01929
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