Nuclear matter in the crust of neutron stars derived from realistic NN interactions
Abstract
Properties of inhomogeneous nuclear matter are evaluated within a relativistic mean field approximation using density dependent coupling constants. A parameterization for these coupling constants is presented, which reproduces the properties of the nucleon self-energy obtained in Dirac Brueckner Hartree Fock calculations of asymmetric nuclear matter but also provides a good description for bulk properties of finite nuclei. The inhomogeneous infinite matter is described in terms of cubic Wigner-Seitz cells, which allows for a microscopic description of the structures in the so-called ``pasta-phase'' of nuclear configurations and provides a smooth transition to the limit of homogeneous matter. The effects of pairing properties and finite temperature are considered. A comparison is made to corresponding results employing the phenomenological Skyrme Hartree-Fock approach and the consequences for the Thomas-Fermi approximation are discussed.
Keywords
Cite
@article{arxiv.0708.2867,
title = {Nuclear matter in the crust of neutron stars derived from realistic NN interactions},
author = {P. Gögelein and E. N. E. van Dalen and C. Fuchs and H. Müther},
journal= {arXiv preprint arXiv:0708.2867},
year = {2008}
}
Comments
16 pages 7, Figs