Empirical constraints on the high-density equation of state from multi-messenger observables
arXiv:1912.11131 · doi:10.1103/PhysRevD.101.043021
Abstract
We search for possible correlations between neutron star observables and thermodynamic quantities that characterize high density nuclear matter. We generate a set of model-independent equations of state describing stellar matter from a Taylor expansion around saturation density. Each equation of state which is a functional of the nuclear matter parameters is thermodynamically consistent, causal and compatible with astrophysical observations. We find that the neutron star tidal deformability and radius are strongly correlated with the pressure, the energy density and the sound velocity at different densities. Similar correlations are also exhibited by a large set of mean-field models based on non-relativistic and relativistic nuclear energy density functionals. These model independent correlations can be employed to constrain the equation of state at different densities above saturation from measurements of NS properties with multi-messenger observations. In particular, precise constraints on the radius of PSR J0030+0451 thanks to NICER observations would allow to better infer the properties of matter around two times the nuclear saturation density.
arXiv comment10 pages, 7 figures
References in corpus (54)
- GW170817: Observation of Gravitational Waves from a Binary Neutron Star Inspiral
- Shapiro delay measurement of a two solar mass neutron star
- A Massive Pulsar in a Compact Relativistic Binary
- Multi-messenger Observations of a Binary Neutron Star Merger
- Gravitational Waves and Gamma-rays from a Binary Neutron Star Merger: GW170817 and GRB 170817A
- GW170817: Measurements of Neutron Star Radii and Equation of State
- 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
- Neutron Star Structure and the Equation of State
- Relativistic Shapiro delay measurements of an extremely massive millisecond pulsar
- Determination of the Equation of State of Dense Matter
- Tidal Love numbers of neutron stars
- A unified equation of state of dense matter and neutron star structure
- Equations of state for supernovae and compact stars
- Gravitational-wave constraints on the neutron-star-matter Equation of State
- Constraints on a phenomenologically parameterized neutron-star equation of state
- New constraints on radii and tidal deformabilities of neutron stars from GW170817
- The NANOGrav Nine-year Data Set: Mass and Geometric Measurements of Binary Millisecond Pulsars
- The NANOGrav 11-year Data Set: High-precision timing of 45 Millisecond Pulsars
- Further explorations of Skyrme-Hartree-Fock-Bogoliubov mass formulas. XII: Stiffness and stability of neutron-star matter
- GW170817: Joint Constraint on the Neutron Star Equation of State from Multimessenger Observations
- Neutron-star radius constraints from GW170817 and future detections
- Constraining the Symmetry Parameters of the Nuclear Interaction
- Measuring the neutron star equation of state using X-ray timing
- Signatures of quark-hadron phase transitions in general-relativistic neutron-star mergers
- Constraining the neutron-proton effective mass splitting using empirical constraints on the density dependence of nuclear symmetry energy around normal density
- Kaon production in heavy ion reactions at intermediate energies
- A NICER view of PSR J0030+0451: Implications for the dense matter equation of state
- GW170817: constraining the nuclear matter equation of state from the neutron star tidal deformability
- The equation of state for dense nucleonic matter from a metamodeling. I. Foundational aspects
- Nuclear constraints on properties of neutron star crusts
- Evidence for a maximum mass cut-off in the neutron star mass distribution and constraints on the equation of state
- Core-crust transition in neutron stars: predictivity of density developments
- Constraints on the neutron star equation of state from AT2017gfo using radiative transfer simulations
- Incompressibility in finite nuclei and nuclear matter
- Density dependence of the nuclear symmetry energy: a microscopic perspective
- Reconstructing the Neutron-Star Equation of State from Astrophysical Measurements
- The equation of state for dense nucleonic matter from a meta-modeling. II. Predictions for neutron stars properties
- Constraining the nuclear matter equation of state around twice saturation density
- Combined Constraints on the Equation of State of Dense Neutron-Rich Matter from Terrestrial Experiments and Observations of Neutron Stars
- A General-relativistic Determination of the Threshold Mass to Prompt Collapse in Binary Neutron Star Mergers
- Probing Extreme-Density Matter with Gravitational Wave Observations of Binary Neutron Star Merger Remnants
- Dense matter with eXTP
- A survey of the parameter space of the compressible liquid drop model as applied to the neutron star inner crust
- Strong correlations of neutron star radii with the slopes of nuclear matter incompressibility and symmetry energy at saturation
- Constraining nuclear matter parameters with GW170817
- Nuclear symmetry energy and core-crust transition in neutron stars: a critical study
- Insights on Skyrme parameters from GW170817
- Equation-of-state Constraints and the QCD Phase Transition in the Era of Gravitational-Wave Astronomy
- On the effect of high order empirical parameters on the nuclear equation of state
- Hyperons in hot dense matter: what do the constraints tell us for equation of state?
- Sensitivity of elements of the symmetry energy of nuclear matter to the properties of neutron-rich systems
- Suppression, persistence and reentrance of superfluidity in overflowing nuclear systems
- GW170817: The energy extraction process of the off-axis relativistic outflow and the constraint on the equation of state of neutron stars
Cited by in corpus (19)
- Nonparametric constraints on neutron star matter with existing and upcoming gravitational wave and pulsar observations
- Neutron star tidal deformability and equation of state constraints
- Interpreting Binary Neutron Star Mergers: Describing the Binary Neutron Star Dynamics, Modelling Gravitational Waveforms, and Analyzing Detections
- The Science of the Einstein Telescope
- Neutron stars with large quark cores
- Bayesian Inference of the Dense Matter Equation of State built upon Covariant Density Functionals
- Constraints on high density equation of state from maximum neutron star mass
- Nearly model-independent constraints on dense matter equation of state in a Bayesian approach
- Unveiling the correlations of tidal deformability with the nuclear symmetry energy parameters
- Determination of the symmetry energy from the neutron star equation of state
- Decoding Neutron Star Observations: Revealing Composition through Bayesian Neural Networks
- Unified neutron star equations of state calibrated to nuclear properties
- Bayesian inference of the dense matter equation of state built upon extended Skyrme interactions
- From NS observations to nuclear matter properties: a machine learning approach
- Constraining nuclear matter parameters from correlation systematics:a mean-field perspective
- Polytropic fits of modern and unified equations of state
- Realizing the potential of deep neural network for analyzing neutron star observables and dense matter equation of state
- Effect of the crust on neutron star empirical relations
- Neutron star equation of state: identifying hadronic matter characteristics