International Journal of Astrophysics and Space Science

Volume 3, Issue 1, February 2015

  • Anisotropic Fluid Star Model in Isotropic Coordinates

    Neeraj Pant, Narendra Pradhan, Manuel Malaver

    Issue: Volume 3, Issue 1-1, February 2015
    Pages: 1-5
    Received: Sep. 29, 2014
    Accepted: Oct. 05, 2014
    Published: Oct. 15, 2014
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    This article belongs to the Special Issue Compact Objects in General Relativity
    Abstract: We present a spherically symmetric solution of the general relativistic field equations in isotropic coordinates for anisotropic neutral fluid, compatible with a super dense star modeling by considering a specific choice of anisotropy factor  that includes a positive constant “” defined as anisotropy parameter, which varies the relation between t... Show More
  • New Analytical Solutions for Quark Stars with Charged Anisotropic Matter

    Manuel Malaver

    Issue: Volume 3, Issue 1-1, February 2015
    Pages: 6-12
    Received: Nov. 10, 2014
    Accepted: Nov. 12, 2014
    Published: Nov. 17, 2014
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    This article belongs to the Special Issue Compact Objects in General Relativity
    Abstract: In this paper, we found new exact solutions to the Einstein- Maxwell system of equations within the framework of MIT Bag Model considering a particular form for the measure of anisotropy and a gravitational potential which depends on an adjustable parameter α. The first class of solutions has a singularity in the center. The second class of solutio... Show More
  • Modeling Anisotropic Charged Neutron Star in Isotropic Coordinates

    Ksh. Newton Singh, Narendra Pradhan, Manuel Malaver

    Issue: Volume 3, Issue 1-1, February 2015
    Pages: 13-20
    Received: Nov. 17, 2014
    Accepted: Nov. 19, 2014
    Published: Dec. 19, 2014
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    This article belongs to the Special Issue Compact Objects in General Relativity
    Abstract: We present a spherically symmetric solution of the general relativistic field equations in isotropic coordinates for charged fluid with pressure anisotropy, compatible with a super dense star modeling. Further, we have constructed an anisotropic model of super dense star with all degree of suitability. We also observed that by increasing anisotropy... Show More