• Anisotropic stars obeying Chaplygin equation of state

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      https://www.ias.ac.in/article/fulltext/pram/090/01/0005

    • Keywords

       

      General relativity; anisotropy; compact star; Chaplygin equation of state

    • Abstract

       

      In this work we provide a framework for modelling compact stars in which the interior matter distribution obeys a generalised Chaplygin equation of state. The interior geometry of the stellar object is described by a spherically symmetric line element which is simultaneously co-moving and isotropic with the exterior space–time being vacuum. We are able to integrate the Einstein field equations and present closed form solutions which adequately describe compact strange star candidates such as 4U 1538-52, PSR J1614-2230, Vela X-1 and Cen X-3 (Gangopadhyay $\it{et al, Mon. Not. R. Astron. Soc.} \bf{431}$, 3216 (2013)).

    • Author Affiliations

       

      P BHAR1 M GOVENDER2 R SHARMA3

      1. Department of Mathematics, Government General Degree College, Singur, Hooghly 712 409, India
      2. Department of Mathematics, Faculty of Applied Sciences, Durban University of Technology, Durban 4000, South Africa
      3. Department of Physics, P.D. Women’s College, Jalpaiguri 735 101, India
    • Dates

       
  • Pramana – Journal of Physics | News

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