Structure of neutron stars with unified equations of state

TL;DR

This paper introduces three unified equations of state for neutron stars based on nuclear energy-density functional theory, fitted to experimental data and constrained by nuclear matter properties, to better understand neutron star structure.

Contribution

It provides a new set of unified EoSs derived from Skyrme forces, integrating experimental atomic mass data with nuclear matter constraints for neutron star modeling.

Findings

EoSs are consistent with astrophysical observations

Enhanced understanding of neutron star structure

Improved modeling of nuclear matter properties

Abstract

We present a set of three unified equations of states (EoSs) based on the nuclear energy-density functional (EDF) theory.These EoSs are based on generalized Skyrme forces fitted to essentially all experimental atomic mass data and constrained to reproduce various properties of infinite nuclear matter as obtained from many-body calculations using realistic two- and three-body interactions. The structure of cold isolated neutron stars is discussed in connection with some astrophysical observations.