General relativity;
Anisotropic fluid;
Einstein's field equations;
Compact star;
Equation of state;
SUPER-DENSE STAR;
STRANGE STARS;
FLUID;
OBJECTS;
SPHERES;
EQUATIONS;
D O I:
10.1007/s10509-016-2940-8
中图分类号:
P1 [天文学];
学科分类号:
0704 ;
摘要:
Anisotropic compact star models have been constructed by assuming a particular form of a metric function e(lambda).. We solved the Einstein field equations for determining the metric function e(nu). For this purpose we have assumed a physically valid expression of radial pressure (p(r)). The obtained anisotropic compact star model is representing the realistic compact objects such as PSR 1937 +21. We have done an extensive study about physical parameters for anisotropic models and found that these parameters are well behaved throughout inside the star. Along with these we have also determined the equation of state for compact star which gives the radial pressure is purely the function of density i.e. p(r) = f (rho).