The Palatini star: exact solutions of the modified Lane–Emden equation

Abstract Two exact solutions for $$n=0$$ n=0 and $$n=1$$ n=1 of the Palatini-modified Lane–Emden equation are found. We have employed these solutions to describe a Palatini–Newtonian neutron or low mass brown dwarf star and compared the result with the pure Newtonian counterpart. It turned out that...

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Main Authors: Artur Sergyeyev, Aneta Wojnar
Format: Article
Language:English
Published: SpringerOpen 2020-04-01
Series:European Physical Journal C: Particles and Fields
Online Access:http://link.springer.com/article/10.1140/epjc/s10052-020-7876-z
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spelling doaj-f2a426e27c1c405a8a183dde5b03dbd22020-11-25T02:28:54ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60441434-60522020-04-018041610.1140/epjc/s10052-020-7876-zThe Palatini star: exact solutions of the modified Lane–Emden equationArtur Sergyeyev0Aneta Wojnar1Mathematical Institute, Silesian University in OpavaNúcleo Cosmo-ufes and PPGCosmo, Universidade Federal do Espírito SantoAbstract Two exact solutions for $$n=0$$ n=0 and $$n=1$$ n=1 of the Palatini-modified Lane–Emden equation are found. We have employed these solutions to describe a Palatini–Newtonian neutron or low mass brown dwarf star and compared the result with the pure Newtonian counterpart. It turned out that for the negative parameter of the Starobinsky model the star is heavier and larger.http://link.springer.com/article/10.1140/epjc/s10052-020-7876-z
collection DOAJ
language English
format Article
sources DOAJ
author Artur Sergyeyev
Aneta Wojnar
spellingShingle Artur Sergyeyev
Aneta Wojnar
The Palatini star: exact solutions of the modified Lane–Emden equation
European Physical Journal C: Particles and Fields
author_facet Artur Sergyeyev
Aneta Wojnar
author_sort Artur Sergyeyev
title The Palatini star: exact solutions of the modified Lane–Emden equation
title_short The Palatini star: exact solutions of the modified Lane–Emden equation
title_full The Palatini star: exact solutions of the modified Lane–Emden equation
title_fullStr The Palatini star: exact solutions of the modified Lane–Emden equation
title_full_unstemmed The Palatini star: exact solutions of the modified Lane–Emden equation
title_sort palatini star: exact solutions of the modified lane–emden equation
publisher SpringerOpen
series European Physical Journal C: Particles and Fields
issn 1434-6044
1434-6052
publishDate 2020-04-01
description Abstract Two exact solutions for $$n=0$$ n=0 and $$n=1$$ n=1 of the Palatini-modified Lane–Emden equation are found. We have employed these solutions to describe a Palatini–Newtonian neutron or low mass brown dwarf star and compared the result with the pure Newtonian counterpart. It turned out that for the negative parameter of the Starobinsky model the star is heavier and larger.
url http://link.springer.com/article/10.1140/epjc/s10052-020-7876-z
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