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    • Generalized isothermal models with strange equation of state

      S D Maharaj S Thirukkanesh

      Research Articles Volume 72 Issue 3 March 2009 pp 481-494

    • Fulltext

       

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      Permanent link:
      https://www.ias.ac.in/article/fulltext/pram/072/03/0481-0494

    • Keywords

       

      Exact solutions; Einstein–Maxwell spacetimes; relativistic stars.

    • Abstract

       

      We consider the linear equation of state for matter distributions that may be applied to strange stars with quark matter. In our general approach the compact relativistic body allows for anisotropic pressures in the presence of the electromagnetic field. New exact solutions are found to the Einstein–Maxwell system. A particular case is shown to be regular at the stellar centre. In the isotropic limit we regain the general relativistic isothermal Universe. We show that the mass corresponds to the values obtained previously for quark stars when anisotropy and charge are present.

    • Author Affiliations

       

      S D Maharaj1 S Thirukkanesh1 2

      1. Astrophysics and Cosmology Research Unit, School of Mathematical Sciences, University of KwaZulu-Natal, Private Bag X54001, Durban 4000, South Africa
      2. Department of Mathematics, Eastern University, Chenkalady, Sri Lanka

    • Dates

       
      Published
      March 2009
      Manuscript received
      30 October 2008
      Manuscript revised
      5 December 2008
      Accepted
      16 December 2008

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