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A new class of relativistic model of compact stars of embedding class I

Piyali BharKsh. Newton SinghDepartment of Physics, National Defence Academy, Khadakwasla, Pune 411023, IndiaTuhina MannaDepartment of Commerce (Evening), St. Xavier’s College, 30 Mother Teresa Sarani, Kolkata 700016, West Bengal, India
2017en
ABI

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In the present paper, we have constructed a new relativistic anisotropic compact star model having a spherically symmetric metric of embedding class one. Here we have assumed an arbitrary form of metric function [Formula: see text] and solved the Einstein’s relativistic field equations with the help of Karmarkar condition for an anisotropic matter distribution. The physical properties of our model such as pressure, density, mass function, surface red-shift, gravitational redshift are investigated and the stability of the stellar configuration is discussed in details. Our model is free from central singularities and satisfies all energy conditions. The model we present here satisfy the static stability criterion, i.e. [Formula: see text] for [Formula: see text][Formula: see text]g/cm 3 (stable region) and for [Formula: see text][Formula: see text]g/cm 3 , the region is unstable i.e. [Formula: see text].

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