Constraining equation of state groups from $g$-mode asteroseismology

Abstract

Buoyancy-restored modes inside neutron stars depend sensitively on both the microphysical (e.g., composition and entropy gradients) and macrophysical (e.g., stellar mass and radius) properties of the star. Asteroseismology efforts for $g$-modes are therefore particularly promising avenues for recovering information concerning the nuclear equation of state. In this work it is shown that the overall low-temperature $g$-space consists of multiple groups corresponding to different classes of equation of state (e.g., hadronic vs. hybrid). This is in contrast to the case of pressure-driven modes, for example, which tend to follow a universal relation regardless of microphysical considerations. Using a wide library of currently-viable equations of state, perturbations of static, stratified stars are calculated in general relativity to demonstrate in particular how $g$-space groupings can be classified according to the mean mass density, temperature, central speed of sound, and tidal deformability. Considering present and future observations regarding gravitational waves, accretion outbursts, quasi-periodic oscillations, and precursor flashes from gamma-ray bursts, it is shown how one might determine which group the $g$-modes belong to.

arXiv comment14 pages, 10 figures, 1 table; accepted by MNRAS; typos in equation (10) corrected

References in corpus (83)

• GW170817: Observation of Gravitational Waves from a Binary Neutron Star Inspiral
• The equation of state for nucleon matter and neutron star structure
• GW170817: Measurements of Neutron Star Radii and Equation of State
• Gravitational Waves from Mergin Compact Binaries: How Accurately Can One Extract the Binary's Parameters from the Inspiral Waveform?
• Relativistic Shapiro delay measurements of an extremely massive millisecond pulsar
• A unified equation of state of dense matter and neutron star structure
• Properties of the binary neutron star merger GW170817
• Constraining neutron star tidal Love numbers with gravitational wave detectors
• Tidal deformability of neutron stars with realistic equations of state and their gravitational wave signatures in binary inspiral
• Constraints on a phenomenologically parameterized neutron-star equation of state
• Hybrid stars that masquerade as neutron stars
• Tidal Deformabilities and Radii of Neutron Stars from the Observation of GW170817
• Towards gravitational-wave asteroseismology
• I-Love-Q Relations in Neutron Stars and their Applications to Astrophysics, Gravitational Waves and Fundamental Physics
• Relativistic Mean-Field Theory and the High-Density Nuclear Equation of State
• Measurability of the tidal polarizability of neutron stars in late-inspiral gravitational-wave signals
• 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
• Nonparametric constraints on neutron star matter with existing and upcoming gravitational wave and pulsar observations
• Effects of neutron-star dynamic tides on gravitational waveforms within the effective-one-body approach
• Relativistic neutron star merger simulations with non-zero temperature equations of state I. Variation of binary parameters and equation of state
• Resonant Shattering of Neutron Star Crusts
• Resonant Oscillations and Tidal Heating in Coalescing Binary Neutron Stars
• Determination of the parameters of a Skyrme type effective interaction using the simulated annealing approach
• Mass Ejection from the Remnant of a Binary Neutron Star Merger: Viscous-Radiation Hydrodynamics Study
• Efficient magnetic-field amplification due to the Kelvin-Helmholtz instability in binary neutron star mergers
• Tidal deformability from GW170817 as a direct probe of the neutron star radius
• Constraining the dense matter equation of state with joint analysis of NICER and LIGO/Virgo measurements
• Observational constraints on hyperons in neutron stars
• Precursors of short gamma-ray bursts
• Thermodynamics conditions of matter in neutron star mergers
• How viscous is a superfluid neutron star core?
• Thermal structure and cooling of superfluid neutron stars with accreted magnetized envelopes
• Resonant Tidal Excitations of Rotating Neutron Stars in Coalescing Binaries
• Magnetar heating
• Inferring physical parameters of compact stars from their f-mode gravitational wave signals
• General relativistic hydrodynamics with viscosity: contraction, catastrophic collapse, and disk formation in hypermassive neutron stars
• A New Mechanism for Gravitational Wave Emission in Core-Collapse Supernovae
• Seismology of adolescent neutron stars: Accounting for thermal effects and crust elasticity
• Constraining the equation of state of high-density cold matter using nuclear and astronomical measurements
• Shattering Flares During Close Encounters of Neutron Stars
• On Estimation of the Post-Newtonian Parameters in the Gravitational-Wave Emission of a Coalescing Binary
• On the nature of GW190814 and its impact on the understanding of supranuclear matter
• Asymmetric nuclear matter and neutron star properties
• Multipolar universal relations between f-mode frequency and tidal deformability of compact stars
• Gravitational-Wave Asteroseismology with Fundamental Modes from Compact Binary Inspirals
• Universal relations for gravitational-wave asteroseismology of proto-neutron stars
• A Parametrized Equation of State for Neutron Star Matter with Continuous Sound Speed
• Resonant Tidal Excitations of Inertial Modes in Coalescing Neutron Star Binaries
• The Birth Function for Black Holes and Neutron Stars in Close Binaries
• Equation of state constraints from nuclear physics, neutron star masses, and future moment of inertia measurements
• Spin effects on neutron star fundamental-mode dynamical tides: phenomenology and comparison to numerical simulations
• Frequency domain model of $f$-mode dynamic tides in gravitational waveforms from compact binary inspirals
• Bounds on the speed of sound in dense matter, and neutron star structure
• Implications of an r-mode in XTE J1751-305: Mass, radius and spin evolution
• Fast Rotating Relativistic Stars: Spectra and Stability without Approximation
• Structure of Stable Binary Neutron Star Merger Remnants: Role of Initial Spin
• Magnetic Field Evolution in Neutron Stars: One-Dimensional Multi-Fluid Model
• A Non-radial Oscillation Mode in an Accreting Millisecond Pulsar?
• Adiabatic Index of Dense Matter and Damping of Neutron Star Pulsations
• Inference of proto-neutron star properties from gravitational-wave data in core-collapse supernovae
• Speed of sound constraints from tidal deformability of neutron stars
• The g-mode spectrum of reactive neutron star cores
• Constraints on the Mass and Radius of the Neutron Star XTE J1807-294
• Universal relation for supernova gravitational waves
• Identification of GRB precursors in Fermi-GBM bursts
• Viscosity of neutron star matter and $r$-modes in rotating pulsars
• Excitation of a nonradial mode in a millisecond X-ray pulsar XTE J1751-305
• Effect of metallicity on the gravitational-wave signal from the cosmological population of compact binary coalescences
• Stringent Search for Precursor Emission in Short GRBs from Fermi/GBM data and Physical Implications
• Upper limit set by causality on the tidal deformability of a neutron star
• Dynamical tides in neutron stars: The impact of the crust
• General-relativistic treatment of tidal $g$-mode resonances in coalescing binaries of neutron stars. I. Theoretical framework and crust breaking
• Urca reactions during neutron star inspiral
• Searching for hypermassive neutron stars with short gamma-ray bursts
• Precursor flares of short gamma-ray bursts from crust yielding due to tidal resonances in coalescing binaries of rotating, magnetized neutron stars
• Asymptotic, non-linear solutions for ambipolar diffusion in one dimension
• Axisymmetric models for neutron star merger remnants with realistic thermal and rotational profiles
• Optimal neutron-star mass ranges to constrain the equation of state of nuclear matter with electromagnetic and gravitational-wave observations
• General-relativistic treatment of tidal $g$-mode resonances in coalescing binaries of neutron stars. II. As triggers for precursor flares of short gamma-ray bursts
• Investigating the I-Love-Q and w-mode Universal Relations Using Piecewise Polytropes
• Universal Relations for Binary Neutron Star Mergers with Long-lived Remnants
• Tidal-heating/viscous dissipation correspondence in black holes and viscous compact objects

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• The Science of the Einstein Telescope
• Impact of the equation of state on $f$- and $p$- mode oscillations of neutron stars
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• Universal relations for compact stars with heavy baryons
• Quasi-periodic oscillations in precursor flares via seismic aftershocks from resonant shattering
• Magnetar QPOs and neutron star crust elasticity
• $f$-mode Imprints in Gravitational Waves from Coalescing Binaries involving Aligned Spinning Neutron Stars
• New dynamical tide constraints from current and future gravitational wave detections of inspiralling neutron stars
• Premerger phenomena in neutron-star binary coalescences
• Evidence for a strong 19.5 Hz flux oscillation in Swift BAT and Fermi GBM gamma-ray data from GRB 211211A
• Fully general relativistic simulations of rapidly rotating quark stars: Oscillation modes and universal relations
• Crustal failure as a tool to probe hybrid stars
• Measuring spin in coalescing binaries of neutron stars showing double precursors
• Non-radial oscillations of hadronic neutron stars, quark stars, and hybrid stars : Calculation of $f$, $p$, and $g$ mode frequencies
• Nonradial oscillations of stratified neutron stars with solid crusts: Mode characterization and tidal resonances in coalescing binaries
• Probing Dark Star Parameters Through $f$-Mode Gravitational Wave Signals
• Effects of inner crusts on $g$-mode oscillations in neutron stars
• $g$-mode of neutron stars in pseudo-Newtonian gravity
• Dynamical neutron-star tides: The signature of a mode resonance
• Gravitational Waves from Strange Star Core-Crust Oscillation
• Magnetic amplification in premerger neutron stars through resonance-induced magnetorotational instabilities
• Effect of symmetry energy on properties of rapidly rotating neutron stars and universal relations
• Role of particle diffusion in shaping the gravitational wave signal from neutron star inspirals
• Classification of $g$-modes for neutron stars with a strong transition: Novel universal relation including slow stable hybrid stars