Authors: Shahab Faruqi Neeraj Pant
Publish Date: 2012/06/14
Volume: 341, Issue: 2, Pages: 485-490
Abstract
A new class of charged superdense star models is obtained by using an electric intensity which involves a parameter K The metric describing the model shares its metric potential g 44 with that of Durgapal’s fourth solution J Phys A Math Gen 152637 1982 The pressurefree surface is kept at the density ρ b =2×1014 g/cm3 and joins smoothly with the ReissnerNordstrom solution The charge analogues are wellbehaved for a wide range 0≤K≤59 with the optimum value of X=0264 ie the pressure density pressure–density ratio and velocity of sound are monotonically decreasing and the electric intensity is monotonically increasing in nature for the given range of the parameter K The maximum mass and the corresponding radius occupied by the neutral solution are 422M Θ and 20 km respectively for X=0264 For the charged solution the maximum mass and radius are defined by the expressions M≈00059K+422M Θ and r b ≈−0021464K+20 km respectively
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