Spectrum of shear modes in the neutron-star crust: Estimating the nuclear-physics uncertainties

Abstract

I construct a model of the inner crust of neutron stars using interactions from chiral effective field theory (EFT) in order to calculate its equation of state (EOS), shear properties, and the spectrum of crustal shear modes. I systematically study uncertainties associated with the nuclear physics input, the crust composition, and neutron entrainment, and estimate their impact on crustal shear properties and the shear-mode spectrum. I find that the uncertainties originate mainly in two sources: The neutron-matter EOS and neutron entrainment. I compare the spectrum of crustal shear modes to observed frequencies of quasi-periodic oscillations in the afterglow of giant $\gamma$-ray bursts and find that all of these frequencies could be described within uncertainties, which are, however, at present too sizable to infer neutron-star properties from observations.

arXiv comment13 pages, 10 figures, published version

References in corpus (73)

• Shapiro delay measurement of a two solar mass neutron star
• A Massive Pulsar in a Compact Relativistic Binary
• Modern Theory of Nuclear Forces
• Chiral effective field theory and nuclear forces
• A unified equation of state of dense matter and neutron star structure
• Equation of state and neutron star properties constrained by nuclear physics and observation
• Physics of Neutron Star Crusts
• The Equation of State of Hot, Dense Matter and Neutron Stars
• Improved nuclear matter calculations from chiral low-momentum interactions
• Constraining the Symmetry Parameters of the Nuclear Interaction
• Three-body forces and the limit of oxygen isotopes
• The maximum mass and radius of neutron stars and the nuclear symmetry energy
• Measuring the neutron star equation of state using X-ray timing
• Chiral three-nucleon forces and neutron matter
• Neutron matter at next-to-next-to-next-to-leading order in chiral effective field theory
• Constraints on neutron star radii based on chiral effective field theory interactions
• Discovery of Rapid X-ray Oscillations in the Tail of the SGR 1806-20 Hyperflare
• Unexpectedly large charge radii of neutron-rich calcium isotopes
• Charge, neutron, and weak size of the atomic nucleus
• Chiral Three-Nucleon Interactions in Light Nuclei, Neutron-$\alpha$ Scattering, and Neutron Matter
• Evolution of shell structure in neutron-rich calcium isotopes
• Discovery of Fast X-ray Oscillations During the 1998 Giant Flare from SGR 1900+14
• Global Seismic Oscillations in Soft Gamma Repeaters
• Neutron matter from chiral effective field theory interactions
• The outer crust of non-accreting cold neutron stars
• Nuclear forces and their impact on neutron-rich nuclei and neutron-rich matter
• Neutron conduction in the inner crust of a neutron star in the framework of the band theory of solids
• Continuum effects and three-nucleon forces in neutron-rich oxygen isotopes
• Neutron Star Asteroseismology. Axial Crust Oscillations in the Cowling Approximation
• The 2004 Hyperflare from SGR 1806-20: Further Evidence for Global Torsional Vibrations
• Ab Initio Calculations of Even Oxygen Isotopes with Chiral Two- Plus Three-Nucleon Interactions
• Coupled-cluster calculations of nucleonic matter
• Detection with RHESSI of high frequency X-ray oscillations in the tail of the 2004 hyperflare from SGR 1806-20
• Leading chiral three-nucleon forces along isotope chains in the calcium region
• Asymmetric nuclear matter based on chiral two- and three-nucleon interactions
• Isotopic chains around oxygen from evolved chiral two- and three-nucleon interactions
• Using Neutron Star Observations to Determine Crust Thicknesses, Moments of Inertia, and Tidal Deformabilities
• Ab initio calculation of the spectrum and structure of ${}^{16}$O
• Torsional Oscillations of Relativistic Stars with Dipole Magnetic Fields
• QPOs during magnetar flares are not driven by mechanical normal modes of the crust
• Three-body forces and shell structure in calcium isotopes
• Nuclear Pasta Formation
• Ab Initio Multi-Reference In-Medium Similarity Renormalization Group Calculations of Even Calcium and Nickel Isotopes
• Magneto-elastic oscillations of neutron stars with dipolar magnetic fields
• On the theory of magnetar QPOs
• Constraints on Neutron Star Crusts From Oscillations in Giant Flares
• Microscopic calculations and energy expansions for neutron-rich matter
• Shear Waves and Giant Flare Oscillations from Soft Gamma-Ray Repeaters
• Upper limits on the observational effects of nuclear pasta in neutron stars
• Correlated density-dependent chiral forces for infinite matter calculations within the Green's function approach
• Elastic or magnetic? A toy model for global magnetar oscillations with implications for QPOs during flares
• Quantum Monte Carlo calculations of neutron matter with non-local chiral interactions
• Auxiliary-Field Quantum Monte Carlo Simulations of Neutron Matter in Chiral Effective Field Theory
• Magnetically-driven crustquakes in neutron stars
• Magnetars oscillations in the presence of a crust
• Magneto-elastic oscillations and the damping of crustal shear modes in magnetars
• Possible Constraints on the Density Dependence of the Nuclear Symmetry Energy from Quasiperiodic Oscillations in Soft Gamma Repeaters
• Towards real neutron star seismology: Accounting for elasticity and superfluidity
• Magnetar Oscillations I: strongly coupled dynamics of the crust and the core
• Quantum Monte Carlo Calculations of Light Nuclei Using Chiral Potentials
• The Neutron Star Crust: Nuclear Physics Input
• Superfluid signatures in magnetar seismology
• Magneto-elastic oscillations of neutron stars: exploring different magnetic field configurations
• Chiral three-nucleon forces and bound excited states in neutron-rich oxygen isotopes
• Coupled-cluster studies of infinite nuclear matter
• Dynamics of the inner crust of neutron stars: hydrodynamics, elasticity and collective modes
• Chiral Fermi liquid approach to neutron matter
• Constraints on Pasta Structure of Neutron Stars from Oscillations in Giant Flares
• Axial quasi-normal modes of neutron stars: Accounting for the superfluid in the crust
• Bayesian timing analysis of giant flare of SGR 1806-20 by RXTE PCA
• Coherent magneto-elastic oscillations in superfluid magnetars
• Magnetar giant flare oscillations and the nuclear symmetry energy
• Quasi-periodic oscillations in superfluid, relativistic magnetars with nuclear pasta phases

Cited by in corpus (36)

• Stringent constraints on neutron-star radii from multimessenger observations and nuclear theory
• Constraining the speed of sound inside neutron stars with chiral effective field theory interactions and observations
• A critical examination of constraints on the equation of state of dense matter obtained from GW170817
• Constraining Neutron-Star Matter with Microscopic and Macroscopic Collisions
• The equation of state for dense nucleonic matter from a metamodeling. I. Foundational aspects
• Dense Nuclear Matter Equation of State from Heavy-Ion Collisions
• Direct Astrophysical Tests of Chiral Effective Field Theory at Supranuclear Densities
• Phases of dense matter in compact stars
• Confronting gravitational-wave observations with modern nuclear physics constraints
• Neutron star crusts from mean field models constrained by chiral effective field theory
• From the microscopic to the macroscopic world: from nucleons to neutron stars
• The Peculiar Precursor of a Gamma-Ray Burst from a Binary Merger Involving a Magnetar
• Parameter estimation for strong phase transitions in supranuclear matter using gravitational-wave astronomy
• On the Persistence of QPOs During the SGR 1806-20 Giant Flare
• The equation of state and radial oscillations of neutron stars
• Prior probability distributions of neutron star crust models
• Bayesian inference of neutron-star observables based on effective nuclear interactions
• Implications of comprehensive nuclear and astrophysics data on the equations of state of neutron star matter
• Properties of the neutron star crust: Quantifying and correlating uncertainties with improved nuclear physics
• Quasi-periodic oscillations in precursor flares via seismic aftershocks from resonant shattering
• Pasta properties of the neutron star within effective relativistic mean-field model
• Magnetar QPOs and neutron star crust elasticity
• Search for Quasi-Periodical Oscillations in Precursors of Short and Long Gamma Ray Bursts
• Superfluid density in linear response theory : pulsar glitches from the inner crust of neutron stars
• Superfluid fraction in the slab phase of the inner crust of neutron stars
• Constraining the properties of dense matter and neutron stars by combining nuclear physics and gravitational waves from GW170817
• Analytical determination of the structure of the outer crust of a cold nonaccreted neutron star: extension to strongly quantizing magnetic fields
• Elastic properties of Yukawa crystals
• Superfluid fraction in the rod phase of the inner crust of neutron stars
• Non-analytic behavior of the relativistic r-modes in slowly rotating neutron stars
• Neutron Star Radii from Laboratory Experiments
• Modeling Solids in Nuclear Astrophysics with Smoothed Particle Hydrodynamics
• Emergence of the geometric contribution to the superfluid density in the inner crust of neutron stars
• Modeling Neutron Star Oscillations in a Fixed General Relativistic Background Including Solid Crust Dynamics
• Neutron star crust and outer core equation of state from chiral effective field theory with quantified uncertainties
• Neutron star crust properties: comparison between the compressible liquid-drop model and the extended Thomas-Fermi approach