Open AccessNuclear symmetry energy effects on neutron stars properties
Author(s) -
Ch. C. Moustakidis,
V. P. Psonis,
S. E. Massen
Publication year - 2020
Publication title -
hnps advances in nuclear physics
Language(s) - English
Resource type - Journals
eISSN - 2654-0088
pISSN - 2654-007X
DOI - 10.12681/hnps.2629
Subject(s) - neutron star , physics , equation of state , neutron , symmetry (geometry) , parameterized complexity , work (physics) , radius , nuclear physics , classical mechanics , mathematical physics , quantum mechanics , geometry , mathematics , computer security , combinatorics , computer science
We construct a class of nuclear equations of state based on a schematic potential model, that originates from the work of Prakash et. al. [1], which reproduce the results of most microscopic calculations. The equations of state are used as input for solving the Tolman- Oppenheimer-Volkov equations for corresponding neutron stars. The potential part contribution of the symmetry energy to the total energy is parameterized in a generalized form both for low and high values of the baryon density. The obtained nuclear equations of state are applied for the systematic study of the global properties of a neutron star (masses, radii and composition). We also address on the problem of the existence of correlation between the pressure near the saturation density and the radius.