Crust-core transition and dynamical instabilities in neutron stars for model with point-coupling interactions * *Supported by Changsha Municipal Natural Science Foundation (kq2007004) and the construct program of the key discipline in Hunan province

Abstract

We explore the effects of the density dependence of symmetry energy on the crust-core phase transition and dynamical instabilities in cold and warm neutron stars in the relativistic mean field (RMF) theory with point-coupling interactions using the Vlasov approach. The role of neutrino trapping is also considered. The crust-core transition density and pressure, distillation effect, and cluster size and growth rates are discussed. The present work shows that the slope of symmetry energy at saturation, temperature, and neutrino trapping have non-negligible effects.