A new class of charged analogues of Vaidya-Tikekar type super-dense star

Details A new class of charged analogues of Vaidya-Tikekar type super-dense star A new class of charged analogues of Vaidya-Tikekar type super-dense star

May 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011ap%26ss.333..143g&link_type=abstract

Astrophysics and Space Science, Volume 333, Issue 1, pp.143-148

Astronomy and Astrophysics

Astrophysics

2

Exact Solutions, Charged Fluids, Superdense Stars, General Relativity

Scientific paper

First ever closed form solution for charged fluid sphere expressed by a space time with its hypersurfaces t= constant as spheroid is obtained for the case 0< K<1. The same is utilized to construct a superdense star with surface density 2×1014 gm/cm3. The star is seen to satisfy the reality and causality conditions for 0< K≤0.045 and possesses maximum mass and radius to be 0.065216 M Θ and 1.137496 km respectively. Moreover the interior of the star satisfy strong energy condition. However in the absence of the causality condition, the reality conditions are valid for a wider range 0< K≤0.13. The maximum mass and radius for the later case are 1.296798 M Θ and 2.6107 km respectively for the strong energy condition, while the said parameters for the weak energy condition read as 1.546269 M Θ and 2.590062 km respectively.

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