Geometry of static $$w=-1/5$$ w = - 1 / 5 perfect fluid spheres in general relativity

Abstract We discuss the physical features of two recent classes of analytical solutions of the Einstein equations sourced by an exotic perfect fluid with equation of state $$ P=-\rho /5$$ P = - ρ / 5 . These geometries depend on up to four parameters and are static and spherically symmetric. They de...

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Main Authors: Behnaz Fazlpour, Ali Banijamali, Valerio Faraoni
Format: Article
Language:English
Published: SpringerOpen 2022-04-01
Series:European Physical Journal C: Particles and Fields
Online Access:https://doi.org/10.1140/epjc/s10052-022-10349-2
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author Behnaz Fazlpour
Ali Banijamali
Valerio Faraoni
author_facet Behnaz Fazlpour
Ali Banijamali
Valerio Faraoni
author_sort Behnaz Fazlpour
collection DOAJ
description Abstract We discuss the physical features of two recent classes of analytical solutions of the Einstein equations sourced by an exotic perfect fluid with equation of state $$ P=-\rho /5$$ P = - ρ / 5 . These geometries depend on up to four parameters and are static and spherically symmetric. They describe compact spaces with naked central singularities.
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spelling doaj.art-9a84005ae42640978e2721004f03fabf2022-12-22T02:09:11ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60522022-04-018241810.1140/epjc/s10052-022-10349-2Geometry of static $$w=-1/5$$ w = - 1 / 5 perfect fluid spheres in general relativityBehnaz Fazlpour0Ali Banijamali1Valerio Faraoni2Department of Physics, Babol Branch, Islamic Azad UniversityDepartment of Basic Sciences, Babol Noshirvani University of TechnologyDepartment of Physics and Astronomy, Bishop’s UniversityAbstract We discuss the physical features of two recent classes of analytical solutions of the Einstein equations sourced by an exotic perfect fluid with equation of state $$ P=-\rho /5$$ P = - ρ / 5 . These geometries depend on up to four parameters and are static and spherically symmetric. They describe compact spaces with naked central singularities.https://doi.org/10.1140/epjc/s10052-022-10349-2
spellingShingle Behnaz Fazlpour
Ali Banijamali
Valerio Faraoni
Geometry of static $$w=-1/5$$ w = - 1 / 5 perfect fluid spheres in general relativity
European Physical Journal C: Particles and Fields
title Geometry of static $$w=-1/5$$ w = - 1 / 5 perfect fluid spheres in general relativity
title_full Geometry of static $$w=-1/5$$ w = - 1 / 5 perfect fluid spheres in general relativity
title_fullStr Geometry of static $$w=-1/5$$ w = - 1 / 5 perfect fluid spheres in general relativity
title_full_unstemmed Geometry of static $$w=-1/5$$ w = - 1 / 5 perfect fluid spheres in general relativity
title_short Geometry of static $$w=-1/5$$ w = - 1 / 5 perfect fluid spheres in general relativity
title_sort geometry of static w 1 5 w 1 5 perfect fluid spheres in general relativity
url https://doi.org/10.1140/epjc/s10052-022-10349-2
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AT alibanijamali geometryofstaticw15w15perfectfluidspheresingeneralrelativity
AT valeriofaraoni geometryofstaticw15w15perfectfluidspheresingeneralrelativity