Degeneracy in the inference of phase transitions in the neutron star equation of state from gravitational wave data

Abstract

Gravitational wave (GW) detections of binary neutron star inspirals will be crucial for constraining the dense matter equation of state (EoS). We demonstrate a new degeneracy in the mapping from tidal deformability data to the EoS, which occurs for models with strong phase transitions. We find that there exists a new family of EoS with phase transitions that set in at different densities and that predict neutron star radii that differ by up to ~500m, but that produce nearly identical tidal deformabilities for all neutron star masses. Next generation GW detectors and advances in nuclear theory may be needed to resolve this degeneracy.

arXiv commentRevised version; accepted by PRL

References in corpus (100)

• 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
• 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
• Masses, Radii, and Equation of State of Neutron Stars
• Properties of the binary neutron star merger GW170817
• A NICER View of the Massive Pulsar PSR J0740+6620 Informed by Radio Timing and XMM-Newton Spectroscopy
• Gravitational-wave constraints on the neutron-star-matter Equation of State
• Refined Mass and Geometric Measurements of the High-Mass PSR J0740+6620
• Constraints on a phenomenologically parameterized neutron-star equation of state
• Constraining the Maximum Mass of Neutron Stars From Multi-Messenger Observations of GW170817
• 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
• Core-collapse supernova equations of state based on neutron star observations
• New constraints on radii and tidal deformabilities of neutron stars from GW170817
• Evolutions in 3D numerical relativity using fixed mesh refinement
• Tidal Deformabilities and Radii of Neutron Stars from the Observation of GW170817
• The Einstein Toolkit: A Community Computational Infrastructure for Relativistic Astrophysics
• GW170817: Joint Constraint on the Neutron Star Equation of State from Multimessenger Observations
• Neutron-star radius constraints from GW170817 and future detections
• Binary neutron-star mergers: a review of Einstein's richest laboratory
• GW170817, General Relativistic Magnetohydrodynamic Simulations, and the Neutron Star Maximum Mass
• Identifying a first-order phase transition in neutron star mergers through gravitational waves
• Signatures of quark-hadron phase transitions in general-relativistic neutron-star mergers
• Approximate Universal Relations for Neutron Stars and Quark Stars
• Chiral interactions up to next-to-next-to-next-to-leading order and nuclear saturation
• Constraining the Equation of State of Neutron Stars from Binary Mergers
• Quantum Monte Carlo Calculations with Chiral Effective Field Theory Interactions
• Constraint on the maximum mass of neutron stars using GW170817 event
• High Resolution Calculations of Merging Neutron Stars II: Neutrino Emission
• Chiral Three-Nucleon Interactions in Light Nuclei, Neutron-$\alpha$ Scattering, and Neutron Matter
• Constraint violation in free evolution schemes: comparing BSSNOK with a conformal decomposition of Z4
• Spectral properties of the post-merger gravitational-wave signal from binary neutron stars
• A NICER view of PSR J0030+0451: Implications for the dense matter equation of state
• Neutron star tidal deformability and equation of state constraints
• Pulsar J0453+1559: A Double Neutron Star System with a Large Mass Asymmetry
• Equation-of-state dependence of the gravitational-wave signal from the ring-down phase of neutron-star mergers
• Implications from GW170817 and I-Love-Q relations for relativistic hybrid stars
• Testing Approximations of Thermal Effects in Neutron Star Merger Simulations
• On the importance of viscous dissipation and heat conduction in binary neutron-star mergers
• Gravitational waves from neutron star mergers and their relation to the nuclear equation of state
• Tidal deformability from GW170817 as a direct probe of the neutron star radius
• Constraining the neutron star equation of state with gravitational wave signals from coalescing binary neutron stars
• Constraining the dense matter equation of state with joint analysis of NICER and LIGO/Virgo measurements
• The Dynamics of Binary Neutron Star Mergers and of GW170817
• Rotating Stars in Relativity
• Neutron Star Extreme Matter Observatory: A kilohertz-band gravitational-wave detector in the global network
• Gravitational-wave signal from binary neutron stars: a systematic analysis of the spectral properties
• Compact binary evolutions with the Z4c formulation
• Relativistic Magnetohydrodynamics In Dynamical Spacetimes: Numerical Methods And Tests
• Postmerger Gravitational-Wave Signatures of Phase Transitions in Binary Mergers
• Reconstructing the Neutron-Star Equation of State from Astrophysical Measurements
• Quantum Monte Carlo calculations of neutron matter with chiral three-body forces
• Chiral Effective Field Theory and the High-Density Nuclear Equation of State
• Phenomenological QCD equation of state for massive neutron stars
• IllinoisGRMHD: An Open-Source, User-Friendly GRMHD Code for Dynamical Spacetimes
• Tidal deformability with sharp phase transitions in (binary) neutron stars
• Measuring the neutron star tidal deformability with equation-of-state-independent relations and gravitational waves
• A New Open-Source Nuclear Equation of State Framework based on the Liquid-Drop Model with Skyrme Interaction
• Neutron Star Merger Remnants
• Magnetohydrodynamics in full general relativity: Formulation and tests
• Beyond second-order convergence in simulations of magnetised binary neutron stars with realistic microphysics
• Sub-radian-accuracy gravitational waveforms of coalescing binary neutron stars in numerical relativity
• Binary Love Relations
• kiloHertz gravitational waves from binary neutron star remnants: time-domain model and constraints on extreme matter
• Signals in the tidal deformability for phase transitions in compact stars with constraints from GW170817
• Tidal Deformabilities and Neutron Star Mergers
• On the Deconfinement Phase Transition in Neutron-Star Mergers
• Constraining nuclear matter parameters with GW170817
• Studying strong phase transitions in neutron stars with gravitational waves
• From Neutron Star Observables to the Equation of State. I. An Optimal Parametrization
• Merger and post-merger of binary neutron stars with a quark-hadron crossover equation of state
• From Neutron Star Observables to the Equation of State. II. Bayesian Inference of Equation of State Pressures
• Equation-of-state insensitive relations after GW170817
• Realistic Finite-Temperature Effects in Neutron Star Merger Simulations
• Finite-temperature extension for cold neutron star equations of state
• Empirical relations for gravitational-wave asteroseismology of binary neutron star mergers
• What do we learn about vector interactions from GW170817?
• Sub-radian-accuracy gravitational waves from coalescing binary neutron stars II: Systematic study on the equation of state, binary mass, and mass ratio
• Impact of Dynamical Tides on the Reconstruction of the Neutron Star Equation of State
• Gravitational waveforms from SpEC simulations : neutron star-neutron star and low-mass black hole-neutron star binaries
• Tidal deformability and other global parameters of compact stars with strong phase transitions
• Uncertainty limits on neutron star radius measurements with gravitational waves
• The slope, the hill, the drop, and the swoosh: Learning about the nuclear matter equation of state from the binary Love relations
• Hybrid equation of state approach in binary neutron-star merger simulations
• Spectral classification of gravitational-wave emission and equation of state constraints in binary neutron star mergers
• The impact of the crust equation of state on the analysis of GW170817
• Impact of the nuclear symmetry energy on the post-merger phase of a binary neutron star coalescence
• Nuclear Forces for Precision Nuclear Physics -- a collection of perspectives
• Resonant tides in binary neutron star mergers: analytical-numerical relativity study
• The Radius of PSR J0740+6620 from NICER and XMM-Newton Data
• Binary neutron star mergers as a probe of quark-hadron crossover equations of state
• Characterizing the breakdown of quasi-universality in the post-merger gravitational waves from binary neutron star mergers
• Finite-temperature effects in dynamical-spacetime binary neutron star merger simulations: Validation of the parametric approach
• Exposing Gravitational Waves below the Quantum Shot Noise
• Constraints on the Neutron Star Equation of State from GW170817
• GW170817 and GW190814: tension on the maximum mass
• Probing neutron stars with the full pre-merger and post-merger gravitational wave signal from binary coalescences

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• Astrophysics and Nuclear Physics Informed Interactions in Dense Matter: Inclusion of PSR J0437-4715
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• Interface modes in inspiralling neutron stars: A gravitational-wave probe of first-order phase transitions
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• On the Testability of the Quark-Hadron Transition Using Gravitational Waves From Merging Binary Neutron Stars
• Crust (Unified) Tool for Equation-of-state Reconstruction (CUTER) v2
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