A class of regular and well behaved relativistic super-dense star models

Details A class of regular and well behaved relativistic super-dense star models A class of regular and well behaved relativistic super-dense star models

Mar 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011ap%26ss.332..155g&link_type=abstract

Astrophysics and Space Science, Volume 332, Issue 1, pp.155-162

Astronomy and Astrophysics

Astrophysics

7

Canonical Coordinates, Charged Fluids, Superdence Star, General Relativity

Scientific paper

We obtain a new class of charged super-dense star models after prescribing particular forms of the metric potential g 44 and electric intensity. The metric describing the superdense stars joins smoothly with the Reissner-Nordstrom metric at the pressure free boundary. The interior of the stars possess there energy density, pressure, pressure-density ratio and velocity of sound to be monotonically decreasing towards the pressure free interface. In view of the surface density 2×1014 g/cm3, the heaviest star occupies a mass 5.6996 M &sun; with its radius 17.0960 km. The red shift at the centre and boundary are found to be 3.5120 and 1.1268 respectively. In absence of the charge we are left behind with the regular and well behaved fifth model of Durgapal (J. Phys. A 15:2637, 1982).

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