Unified neutron star EOSs and neutron star structures in RMF models

Abstract

In the framework of Thomas-Fermi approximation, we study systematically the EOSs and microscopic structures of neutron star matter in a vast density range with $n_{\mathrm{b}}\approx 10^{-10}$-2 ${\mathrm{fm}}^{-3}$, where various covariant density functionals are adopted, i.e., those with nonlinear self couplings (NL3, PK1, TM1, GM1, MTVTC) and density-dependent couplings (DD-LZ1, DDME-X, PKDD, DD-ME2, DD2, TW99). It is found that the EOSs generally coincide with each other at $n_{\mathrm{b}}\lesssim 10^{-4}$ fm${}^{-3}$ and 0.1 fm${}^{-3}\lesssim n_{\mathrm{b}}\lesssim 0.3$ fm${}^{-3}$, while in other density regions they are sensitive to the effective interactions between nucleons. By adopting functionals with larger slope of symmetry energy $L$, the curvature parameter $K_{\mathrm{sym}}$ and neutron drip density generally increase, while the droplet size, proton number of nucleus, core-crust transition density, and onset density of non-spherical nuclei decrease. All functionals predict neutron stars with maximum masses exceeding the two-solar-mass limit, while those of DD2, DD-LZ1, DD-ME2, and DDME-X predict optimum neutron star radii according to the observational constraints. Nevertheless, the corresponding skewness coefficients $J$ are much lager than expected, while only the functionals MTVTC and TW99 meet the start-of-art constraints on $J$. More accurate measurements on the radius of PSR J0740+6620 and the maximum mass of neutron stars are thus essential to identify the functional that satisfies all constraints from nuclear physics and astrophysical observations. Approximate linear correlations between neutron stars' radii at $M=1.4M_{\odot }$ and $2M_{\odot }$, the slope $L$ and curvature parameter $K_{\mathrm{sym}}$ of symmetry energy are observed as well, which is mainly attributed to the curvature-slope correlations in the functionals adopted here.

arXiv commentThe EOS tables can be found at: teacher.yzu.edu.cn/CJXia/en/lwcg/492393/content/79242.htm

References in corpus (119)

• Shapiro delay measurement of a two solar mass neutron star
• A Massive Pulsar in a Compact Relativistic Binary
• GW170817: Measurements of Neutron Star Radii and Equation of State
• GW190814: Gravitational Waves from the Coalescence of a 23 M${}_{\odot }$ Black Hole with a 2.6 M${}_{\odot }$ Compact Object
• PSR J0030+0451 Mass and Radius from NICER Data and Implications for the Properties of Neutron Star Matter
• A NICER View of PSR J0030+0451: Millisecond Pulsar Parameter Estimation
• Relativistic Shapiro delay measurements of an extremely massive millisecond pulsar
• A New Parameterization for the Lagrangian Density of Relativistic Mean Field Theory
• A unified equation of state of dense matter and neutron star structure
• Explosion Mechanisms of Core-Collapse Supernovae
• A NICER View of the Massive Pulsar PSR J0740+6620 Informed by Radio Timing and XMM-Newton Spectroscopy
• Equations of state for supernovae and compact stars
• Relativistic Continuum Hartree Bogoliubov Theory for Ground State Properties of Exotic Nuclei
• Refined Mass and Geometric Measurements of the High-Mass PSR J0740+6620
• The Nuclear Equation of State and Neutron Star Masses
• Composition and thermodynamics of nuclear matter with light clusters
• Using gravitational-wave observations and quasi-universal relations to constrain the maximum mass of neutron stars
• From hadrons to quarks in neutron stars: a review
• Physics of Neutron Star Crusts
• The NANOGrav Nine-year Data Set: Mass and Geometric Measurements of Binary Millisecond Pulsars
• Skyrme Interaction and Nuclear Matter Constraints
• Accurate Determination of the Neutron Skin Thickness of ${}^{208}$Pb through Parity-Violation in Electron Scattering
• Evolution of Protoneutron Stars
• Exotic modes of excitation in atomic nuclei far from stability
• Relativistic Mean-Field Hadronic Models under Nuclear Matter Constraints
• A giant, periodic flare from the soft gamma repeater SGR1900+14
• GW170817, General Relativistic Magnetohydrodynamic Simulations, and the Neutron Star Maximum Mass
• New effective interactions in RMF theory with non-linear terms and density-dependent meson-nucleon coupling
• The Cooling of Compact Stars
• Constraints on the high-density nuclear equation of state from the phenomenology of compact stars and heavy-ion collisions
• Pulsar Constraints on Neutron Star Structure and Equation of State
• The Breaking Strain of Neutron Star Crust and Gravitational Waves
• Constraining the neutron-proton effective mass splitting using empirical constraints on the density dependence of nuclear symmetry energy around normal density
• Neutron star radii and crusts: uncertainties and unified equations of state
• Constraint on the maximum mass of neutron stars using GW170817 event
• Pulsar glitches: The crust is not enough
• Neutrino-pasta scattering: the opacity of nonuniform neutron-rich matter
• Equation-of-state dependence of the gravitational-wave signal from the ring-down phase of neutron-star mergers
• Nuclear constraints on properties of neutron star crusts
• Gravitational waves from neutron star mergers and their relation to the nuclear equation of state
• Relativistic Equation of State for Core-Collapse Supernova Simulations
• Neutron conduction in the inner crust of a neutron star in the framework of the band theory of solids
• Halos in medium-heavy and heavy nuclei with covariant density functional theory in continuum
• Astrophysical Constraints on the Symmetry Energy and the Neutron Skin of ${}^{208}$Pb with Minimal Modeling Assumptions
• Nuclear equation of state for core-collapse supernova simulations with realistic nuclear forces
• Nuclear pasta structures and the charge screening effect
• A highly resistive layer within the crust of X-ray pulsars limits their spin periods
• The symmetry energy at subnuclear densities and nuclei in neutron star crusts
• Symmetry energy impact in simulations of core-collapse supernovae
• Pulsars as Astrophysical Laboratories for Nuclear and Particle Physics
• Unified equation of state for neutron stars on a microscopic basis
• GW190814 as a massive rapidly-rotating neutron star with exotic degrees of freedom
• Structure of the inner crust of neutron stars: crystal lattice or disordered phase ?
• A General-relativistic Determination of the Threshold Mass to Prompt Collapse in Binary Neutron Star Mergers
• Liquid crystals in the mantles of neutron stars
• Breaking stress of neutron star crust
• Structure of cold nuclear matter at subnuclear densities by Quantum Molecular Dynamics
• Three-Nucleon Forces: Implementation and Applications to Atomic Nuclei and Dense Matter
• Equation of state constraints from the threshold binary mass for prompt collapse of neutron star mergers
• Probing the Equation of State of Nuclear Matter via Neutron Star Asteroseismology
• Quadrupole deformation $(\beta ,\gamma )$ of light $\Lambda$ hypernuclei in constrained relativistic mean field model: shape evolution and shape polarization effect of $\Lambda$ hyperon
• Extracting Nuclear Symmetry Energies at High Densities from Observations of Neutron Stars and Gravitational Waves
• Cooling of Neutron Stars. Hadronic Model
• Astromaterial Science and Nuclear Pasta
• The Dipole Magnetic Field and Spin-down Evolutions of The High Braking Index Pulsar PSR J1640-4631
• Neutron star equation of state from the quark level in the light of GW170817
• Gravitational-wave constraints on the equatorial ellipticity of millisecond pulsars
• The pasta phase within density dependent hadronic models
• Breaking properties of neutron star crust
• Effects of symmetry energy on equation of state for simulations of core-collapse supernovae and neutron-star mergers
• Superfluid Density of Neutrons in the Inner Crust of Neutron Stars: New Life for Pulsar Glitch Models
• Constraints on the symmetry energy and its associated parameters from nuclei to neutron stars
• The Elasticity of Nuclear Pasta
• Neutron star equation of state: QMF modeling and applications
• The neutron star inner crust and symmetry energy
• Parking-garage structures in astrophysics and biophysics
• Towards real neutron star seismology: Accounting for elasticity and superfluidity
• Hyperon effects in covariant density functional theory with recent astrophysical observations
• Parametric correlations in energy density functionals
• What do we learn about vector interactions from GW170817?
• Nuclear Waffles
• Appearance of the Single Gyroid Network Phase in Nuclear Pasta Matter
• Time-Dependent Hartree-Fock Approach to Nuclear Pasta at Finite Temperature
• Density dependencies of interaction strengths and their influence on nuclear matter and neutron star in relativistic mean field theory
• Uncertainties in the pasta-phase properties of catalysed neutron stars
• Quantum Nuclear Pasta and Nuclear Symmetry Energy
• Symmetry energy constraints from GW170817 and laboratory experiments
• Curvature-slope correlation of nuclear symmetry energy and its imprints on the crust-core transition, radius and tidal deformability of canonical neutron stars
• Three dimensional structure of low-density nuclear matter
• Gyroid Phase in Nuclear Pasta
• Probing nuclear bubble structure via neutron star asteroseismology
• Astrophysical implications on hyperon couplings and hyperon star properties with relativistic equations of states
• Astrophysical implications of double-layer torsional oscillations in a neutron star crust as a lasagna sandwich
• Tidal deformations of neutron stars with elastic crusts
• Thermal Properties of Asymmetric Nuclear Matter
• Strangeness and $\Delta$ resonance in compact stars with relativistic-mean-field models
• Systematic study on the quark-hadron mixed phase in compact stars
• Structures of the Vela pulsar and the glitch crisis from the Brueckner theory
• Gravitational Waves From Low Mass Neutron Stars
• Constraining properties of high-density matter in neutron stars with magneto-elastic oscillations
• Delta Baryons in Neutron-Star Matter under Strong Magnetic Fields
• Effects of $\varphi$-meson on properties of hyperon stars in density dependent relativistic mean field model
• A Survey of Nuclear Pasta in the Intermediate Density Regime I: Shapes and Energies
• Bayesian inference of the incompressibility, skewness and kurtosis of nuclear matter from empirical pressures in relativistic heavy-ion collisions
• Quantum Simulations of Nuclei and Nuclear Pasta with the Multi-resolution Adaptive Numerical Environment for Scientific Simulations
• The equation of state and radial oscillations of neutron stars
• BCS-BEC crossover in nuclear matter with the relativistic Hartree-Bogoliubov theory
• Surface tension of the core-crust interface of neutron stars with global charge neutrality
• Critical parameters of liquid-gas phase transition in thermal symmetric and asymmetric nuclear matter
• Deformed crystals and torsional oscillations of neutron star crust
• Coordinate-space solver for finite-temperature Hartree-Fock-Bogoliubov calculation using the shifted Krylov method
• Unified nuclear matter EOSs constrained by the in-medium balance in density-dependent covariant density functionals
• Nuclear pasta structures and symmetry energy
• Nuclear pasta and supernova neutrinos at late times
• A Survey of Nuclear Pasta in the Intermediate Density Regime: Structure Functions for Neutrino Scattering
• Pasta phases in neutron star studied with extended relativistic mean field models
• Ensembles of unified crust and core equations of state in a nuclear-multimessenger astrophysics environment
• What can be learned from a proto-neutron star's mass and radius?
• Pulsar glitch and nuclear EoS: Applicability of superfluid model

Cited by in corpus (25)

• Science with the Einstein Telescope: a comparison of different designs
• Compiled Properties of Nucleonic Matter and Nuclear and Neutron Star Models from Non-Relativistic and Relativistic Interactions
• Constraining the mass of fermionic dark matter from its feeble interaction with hadronic matter via dark mediators in neutron stars
• Probing phase transition in neutron stars via the crust-core interfacial mode
• Extended NJL model for baryonic matter and quark matter
• Quarkyonic matter and quarkyonic stars in an extended RMF model
• Average speed of sound in neutron stars
• Analyzing the dense matter equation of states in the light of the compact object HESS J1731-347
• Impact of dark boson mediated feeble interaction between dark matter and hadronic matter on $f$-mode oscillation of neutron stars
• Density-dependent relativistic mean field approach and its application to single-$\Lambda$ hypernuclei in Oxygen isotopes
• Nuclear pasta structures at high temperatures
• Nonradial oscillations of stratified neutron stars with solid crusts: Mode characterization and tidal resonances in coalescing binaries
• Non-radial oscillations of hadronic neutron stars, quark stars, and hybrid stars : Calculation of $f$, $p$, and $g$ mode frequencies
• The nuclear symmetry energy and the neutron skin thickness in nuclei
• Effects of inner crusts on $g$-mode oscillations in neutron stars
• Nuclear physics inputs for dense-matter modelling in neutron stars. The nuclear equation of state
• Unified treatment for in-medium light and heavy clusters with RMF models
• Properties and microscopic structures of dense stellar matter in RMF models
• Gravitational Redshift for Rapidly Rotating Neutron Stars
• Effects of a Brueckner-Hartree-Fock-corrected effective mass on speed of sound, conformality, and observables of dark matter-admixed neutron stars
• Lense-Thirring precession of neutron-star accretion flows: Relativistic versus classical precession
• Binding energy of compact stars and their non-radial oscillations
• Tracing the Trace Anomaly of Dense Matter inside Neutron Stars
• Bayesian Inference of Neutron Star Properties in $f(Q)$ Gravity Using NICER Observations
• Equation-of-State Independent Relations in Rapidly Rotating Hybrid Stars