Core-crust transition properties of neutron stars within systematically varied extended relativistic mean-field model

Abstract

The model dependence and the symmetry energy dependence of the core-crust transition properties for the neutron stars are studied using three different families of systematically varied extended relativistic mean field model. Several forces within each of the families are so considered that they yield wide variations in the values of the nuclear symmetry energy $a_{\mathrm{sym}}$ and its slope parameter $L$ at the saturation density. The core-crust transition density is calculated using a method based on random-phase-approximation. The core-crust transition density is strongly correlated, in a model independent manner, with the symmetry energy slope parameter evaluated at the saturation density. The pressure at the transition point dose not show any meaningful correlations with the symmetry energy parameters at the saturation density. At best, pressure at the transition point is correlated with the symmetry energy parameters and their linear combination evaluated at the some sub-saturation density. Yet, such correlations might not be model independent. The correlations of core-crust transition properties with the symmetry energy parameter are also studied by varying the symmetry energy within a single model. The pressure at the transition point is correlated once again with the symmetry energy parameter at the sub-saturation density.

arXiv comment21 pages, 9 figures, Int. J. Mod. Phys. (accepted)

References in corpus (40)

• Neutron Star Structure and the Equation of State
• A New Parameterization for the Lagrangian Density of Relativistic Mean Field Theory
• Isospin Asymmetry in Nuclei and Neutron Stars
• Neutron Star Structure and the Neutron Radius of 208Pb
• Neutron-Rich Nuclei in Heaven and Earth
• Nuclear symmetry energy probed by neutron skin thickness of nuclei
• Shell structure of superheavy nuclei in self-consistent mean-field models
• Relativistic Mean-Field Theory and the High-Density Nuclear Equation of State
• Constraining the Symmetry Parameters of the Nuclear Interaction
• Neutron Radii in Mean-Field Models
• A Chiral Effective Lagrangian for Nuclei
• Nuclear Ground State Observables and QCD Scaling in a Refined Relativistic Point Coupling Model
• Low Mass Neutron Stars and the Equation of State of Dense Matter
• Electric dipole polarizability and the neutron skin
• Nuclear constraints on properties of neutron star crusts
• Isotopic dependence of the giant monopole resonance in the even-A ^{112-124}Sn isotopes and the asymmetry term in nuclear incompressibility
• Core-crust transition in neutron stars: predictivity of density developments
• Analysis of Chiral Mean-Field Models for Nuclei
• Neutron skin thickness in droplet model with surface width dependence: indications of softness of the nuclear symmetry energy
• Giant Quadrupole Resonances in 208Pb, the nuclear symmetry energy and the neutron skin thickness
• Inner edge of neutron-star crust with SLy effective nucleon-nucleon interactions
• Isospin-dependent clusterization of Neutron-Star Matter
• A survey of the parameter space of the compressible liquid drop model as applied to the neutron star inner crust
• Non-rotating and rotating neutron stars in the extended field theoretical model
• The nuclear symmetry energy and stability of matter in neutron star
• The Giant Monopole Resonance in the Sn Isotopes: Why is Tin so "Fluffy"?
• Asymmetric nuclear matter and neutron-skin in extended relativistic mean field model
• Determining the density content of symmetry energy and neutron skin: an empirical approach
• Warm pasta phase in the Thomas-Fermi approximation
• Neutron skins and neutron stars
• Atomic Parity Non-Conservation, Neutron Radii, and Effective Field Theories of Nuclei
• The diffusive instability of kaon condensate in neutron star matter
• Higher-order symmetry energy of nuclear matter and the inner edge of neutron star crusts
• Constraints on the inner edge of neutron star crusts from relativistic nuclear energy density functionals
• Low Densities Instability of Relativistic Mean Field Models
• Nuclear surface properties in relativistic effective field theory
• Probing Mechanical and Chemical Instabilities in Neutron-Rich Matter
• Instabilities of relativistic mean field models and the role of nonlinear terms
• Criteria for nonlinear parameters of relativistic mean field models
• Low-Density Instability of Multi-Component Matter with Trapped Neutrinos

Cited by in corpus (5)

• Phases of dense matter in compact stars
• Giant Pulsar Glitches and the Inertia of Neutron-Star Crusts
• Role of the symmetry energy on the neutron-drip transition in accreting and nonaccreting neutron stars
• Novel features of asymmetric nuclear matter from terrestrial experiments and astrophysical observations of neutron stars
• Estimation of transport coefficients of dense hadronic and quark matter