Implications for compact stars of a soft nuclear equation of state from heavy-ion data
arXiv:1211.0427 · doi:10.22323/1.146.0036
Abstract
We study the implications on compact star properties of a soft nuclear equation of state determined from kaon production at subthreshold energies in heavy-ion collisions. On one hand, we apply these results to study radii and moments of inertia of light neutron stars. Heavy-ion data provides constraints on nuclear matter at densities relevant for those stars and, in particular, to the density dependence of the symmetry energy of nuclear matter. On the other hand, we derive a limit for the highest allowed neutron star mass of three solar masses. For that purpose, we use the information on the nucleon potential obtained from the analysis of the heavy-ion data combined with causality on the nuclear equation of state.
8 pages, 5 figures, to appear in the proceedings of the XII International Symposium on Nuclei in the Cosmos (NIC2012), 5-10 August 2012, Cairns, Australia