Systematic study for the surface properties of neutron star

Abstract

A detailed study of the structural properties of neutron star (NS) is performed within the coherent density fluctuation model using the recently developed G3 and widely used NL3 and IU-FSU parameter sets in the relativistic mean-field formalism. The masses, moment of inertia, and density profiles of the NS at various mass limits are studied. The incompressibility 𝐾 𝑠𝑡 𝑎𝑟 , symmetry energy 𝑆 𝑠𝑡 𝑎𝑟 , slope parameter 𝐿 𝑠𝑡 𝑎𝑟 𝑠𝑦𝑚 and curvature coefficient 𝐾 𝑠𝑡 𝑎𝑟 𝑠𝑦𝑚 of the NS at various masses are analyzed. The surface properties (𝐾 𝑠𝑡 𝑎𝑟 , 𝑆 𝑠𝑡 𝑎𝑟 , 𝐿 𝑠𝑡 𝑎𝑟 𝑠𝑦𝑚 and 𝐾 𝑠𝑡 𝑎𝑟 𝑠𝑦𝑚 ) are found to be model dependent, NL3 is the stiffest equation of state gives the higher magnitude of surface quantities as compared to the G3 and IU-FSU forces.