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.

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• Constraints on the high-density nuclear equation of state from the phenomenology of compact stars and heavy-ion collisions
• Nuclear rainbow scattering and nucleus-nucleus potential
• The symmetry energy at subnuclear densities and nuclei in neutron star crusts
• On the validity of the Wigner-Seitz approximation in neutron star crust
• Dirac-Brueckner-Hartree-Fock calculations for isospin asymmetric nuclear matter based on improved approximation schemes
• Nuclear matter in the crust of neutron stars
• The relativistic self-energy in nuclear dynamics

Cited by in corpus (19)

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• The pasta phase within density dependent hadronic models
• Cluster formation in compact stars: relativistic versus Skyrme models
• A Neutron Star is born
• Thermal Properties of Asymmetric Nuclear Matter
• Properties of asymmetric nuclear matter in different approaches
• Glassy quantum nuclear pasta in neutron star crusts
• Phase transitions in Core-Collapse Supernova Matter at sub-saturation densities
• Hadron-quark phase transition in asymmetric matter with dynamical quark masses
• Wigner-Seitz cells in neutron star crust with finite range interactions
• Weakly bound nuclei and realistic NN interactions
• Nuclear Saturation with Low Momentum Interactions
• Analyzing the dense matter equation of states in the light of the compact object HESS J1731-347
• Shell States of Neutron Rich Matter
• Direct nonparametric multimessenger constraints on the equation of state of cold dense nuclear matter
• Spinodal Instabilities in Asymmetric Nuclear Matter Based on Realistic $NN$ Interactions
• Phase transitions in the inner crust of neutron stars within the superfluid band theory: Competition between ${}^1{\text{S}}_0$ pairing and spin polarization under finite temperature and magnetic field
• Tracing the Trace Anomaly of Dense Matter inside Neutron Stars
• Bayesian inferences on covariant density functionals from multimessenger astrophysical data: Influences of parametrizations of density dependent couplings