Equilibrium and stability of strange anisotropic stars

José D.V. Arbañil, Manuel Malheiro

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The equilibrium and stability of anisotropic strange stars is analyzed. For this purpose, we consider that the anisotropy factor follows the equation σ = k pr(1 − e−λ); being k a constant, pr the radial pressure and e−λ a metric function. We found that the anisotropy yields considerable changes in some macroscopic properties of strange stars. Despite this, such as is determined in isotropic strange stars, the onset of the instability is marked by the maximum mass point. This indicates that stable and unstable equilibrium configurations can be recognize through the conditions dM/dρc > 0 and dM/dρc < 0, respectively.

Original languageEnglish
Title of host publication14th Marcel Grossman Meeting On Recent Developments in Theoretical and Experimental General Relativity, Astrophysics and Relativistic Field Theories, Proceedings
EditorsMassimo Bianchi, Robert T Jantzen, Remo Ruffini, Remo Ruffini
PublisherWorld Scientific Publishing Co. Pte Ltd
Pages1571-1575
Number of pages5
ISBN (Electronic)9789813226593
DOIs
StatePublished - 2018
Event14th Marcel Grossman Meeting On Recent Developments in Theoretical and Experimental General Relativity, Astrophysics and Relativistic Field Theories - Rome, Italy
Duration: 12 Jul 201518 Jul 2015

Publication series

Name14th Marcel Grossman Meeting On Recent Developments in Theoretical and Experimental General Relativity, Astrophysics and Relativistic Field Theories, Proceedings

Conference

Conference14th Marcel Grossman Meeting On Recent Developments in Theoretical and Experimental General Relativity, Astrophysics and Relativistic Field Theories
CountryItaly
CityRome
Period12/07/1518/07/15

Bibliographical note

Funding Information:
J.D.V.A. would like to thank Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES, Brazil, for a grant. M. M. thanks Fundação de Amparo à Pesquisa do São Paulo for financial support under the thematic Project 13/26258−4.

Funding Information:
J.D.V.A. would like to thank Coordena¸cão de Aperfeic¸oamento de Pessoal de Ńıvel Superior - CAPES, Brazil, for a grant. M. M. thanks Fundac¸ão de Amparo à Pesquisa do São Paulo for financial support under the thematic Project 13/26258−4.

Publisher Copyright:
Copyright © 2018 by the Editors.All rights reserved.

Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.

Keywords

  • Compact stars
  • Stability
  • Structure

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