Browsing Department of Physics by Subject "Einstein field equations"

Now showing items 1-4 of 4

Anisotropic compact sphere with Van der Waals equation of state

Thirukkanesh, S.; Ragel, F. C. (Astrophysics and Space Science, 2014)

We formulate a system of field equations with Van der Waals type equation of state to the Einstein field equations in spherically symmetric static spacetime to describe anisotropic compact matter and obtain a new class of ...
Exact anisotropic sphere with polytropic equation of state

Thirukkanesh, S.; Ragel, F. C. (Pramana-Journal of Physics, 2012)

We study static spherically symmetric spacetime to describe compact objects with anisotropic matter distribution. We express the system of Einstein field equations as a new system of differential equations using a coordinate ...
Hypergeometric Equation in Modeling Relativistic Isotropic Sphere

Thirukkanesh, S.; Ragel, F. C. (International Journal of Theoretical Physics, 2014)

We study the Einstein system of equations in static spherically symmetric spacetimes. We obtained classes of exact solutions to the Einstein system by transforming the condition for pressure isotropy to a hypergeometric ...
Strange star model with Tolmann IV type potential

Thirukkanesh, S.; Ragel, F. C. (Astrophysics and Space Science, 2014)

We report a general solution in one of the gravitational potentials to the Einstein system in static spherically symmetric spacetime, modeling anisotropic strange quark matter by imposing a linear barotropic equation of ...

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