Quark Stars in Chiral Colour Dielectric Model

Abstract

The nonlinear chiral extension of colour dielectric model has been used in the present work to study the properties of quark stars. Assuming that the square of meson fields develop nonzero expectation value, the thermodynamic potential for charge neutral interacting two and three flavour quark matter, in beta equilibrium, has been calculated up to second order in quark gluon interaction term in the Lagrangian. The equation of state has been found to be softer for higher quark masses and interaction strength. The quark stars properties are found to be dependent on EOS. The mass, radius, moment of inertia and gravitational red shift decrease as the equation of state becomes more soft.