Charged polytropic stars and quasiblack holes

José D.V. Arbañil, Vilson T. Zanchin, José P.S. Lemos

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

Abstract

We present results concerning the existence of static electrically charged spheres made by a charged perfect fluid with polytropic equation of state that are arbitrarily close to a quasiblack hole configuration. The study is performed by solving the Tolman-Oppenheimer-Volkoff equation, by assuming that the charge distribution is proportional to the energy density. We search for compact equilibrium configurations and verify that the extremal limit for charged polytropic spheres, i.e., the quasiblack hole limit, is approached when considering high polytropic indexes and large charge densities.

Original languageEnglish
Title of host publicationOn Recent Developments in Theoretical and Experimental General Relativity, Astrophysics and Relativistic Field Theories
EditorsKjell Rosquist, Robert T. Jantzen, Remo Ruffini, Remo Ruffini
PublisherWorld Scientific
Pages1189-1191
Number of pages3
Edition210699
ISBN (Print)9789814612142
DOIs
StatePublished - 2015
Event13th Marcel Grossmann Meeting on Recent Developments in Theoretical and Experimental General Relativity, Gravitation, and Relativistic Field Theories, MG13 2012 - Stockholm, Sweden
Duration: 1 Jul 20157 Jul 2015

Publication series

NameThe 13th Marcel Grossmann Meeting: On Recent Developments in Theoretical and Experimental General Relativity, Astrophysics and Relativistic Field Theories - Proceedings of the MG13 Meeting on General Relativity, 2012
Number210699

Conference

Conference13th Marcel Grossmann Meeting on Recent Developments in Theoretical and Experimental General Relativity, Gravitation, and Relativistic Field Theories, MG13 2012
Country/TerritorySweden
CityStockholm
Period1/07/157/07/15

Bibliographical note

Funding Information:
JDVA and VTZ thank CAPES, CNPq and FAPESP-Brazil for financial support. JPSL thanks FCT-Portugal for financial support through the projects PTDC/FIS/098962/2008 and PEst-OE/FIS/UI0099/2011.

Funding Information:
Acknowledgments: JDVA and VTZ thank CAPES, CNPq and FAPESP-Brazil for financial support. JPSL thanks FCT-Portugal for financial support through the projects PTDC/FIS/098962/2008 and PEst-OE/FIS/UI0099/2011.

Publisher Copyright:
© 2015, World Scientific. All rights reserved.

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