Systematic analysis of the impacts of symmetry energy parameters on neutron star properties

The impacts of various symmetry energy parameters on the properties neutron stars (NSs) have been recently investigated, and outcomes are at variance, as summarized in Table III Phys. Rev. D 106, 063005 (2022). We systematically analyzed correlations slope curvature saturation density ($\rho_0=0.16 \text{fm}^{-3}$) with tidal deformability stellar radius non-spinning mass range $1.2 - 1.6 M_\odot$ using a large set minimally constrained equations state (EoSs). EoSs low densities correspond to nucleonic matter by empirical ranges few low-order nuclear from finite nuclei data pure EoS chiral effective field theory. high ($\rho > 1.5 2\rho_0$) obtained parametric form for speed sound that satisfies causality condition. Several factors affecting between NS individual usually encountered literature considered. These quite sensitive choice distributions their interdependence. But, variations pressure $\beta -$ equilibrated twice remain robust which maybe due fact depends combination multiple describe symmetric well dependence energy. Our results practically insensitive behavior densities.