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:
29 September 2014
Accepted:
5 October 2014
Published:
15 October 2014
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 the radial and tangential pressure. Further, we have constructed a super-dense star model with all degree of suitability. We have found that the maximum mass decreases with the increase of anisotropy parameter (α). The robustness of our result is that it matches with the recent discoveries.
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...
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New Analytical Solutions for Quark Stars with Charged Anisotropic Matter
Issue:
Volume 3, Issue 1-1, February 2015
Pages:
6-12
Received:
10 November 2014
Accepted:
12 November 2014
Published:
17 November 2014
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 solutions is regular in the stellar interior. Variables as the energy density, radial pressure, tangential pressure, electric field intensity and the metric functions are written in terms of elementary and polinominal functions. We show that the form chosen for the gravitational potential and the anisotropy allows obtain physically acceptable solutions with any value of the adjustable parameter.
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...
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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:
17 November 2014
Accepted:
19 November 2014
Published:
19 December 2014
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, the maximum mass of super dense stars also decreases.
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...
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