Probing the Internal Composition of Neutron Stars with Gravitational Waves
arXiv:1508.02062 · doi:10.1103/PhysRevD.92.104008
Abstract
Gravitational waves from neutron star binary inspirals contain information about the equation of state of supranuclear matter. In the absence of definitive experimental evidence that determines the correct equation of state, a number of diverse models that give the pressure in a neutron star as function of its density have been proposed. These models differ not only in the approximations and techniques they use to solve the many-body Schrödinger equation, but also in the neutron star composition they assume. We study whether gravitational wave observations of neutron star binaries in quasicircular inspirals will allow us to distinguish between equations of state of differing internal composition, thereby providing important information about the properties of extremely high density matter. We carry out a Bayesian model selection analysis, and find that second generation gravitational wave detectors can heavily constrain equations of state that contain only quark matter, but hybrid stars containing both normal and quark matter are harder to distinguish from normal matter stars. A gravitational wave detection with a signal-to-noise ratio of 30 and masses around could either detect or rule out strange quark stars with a 20 to 1 confidence. The presence of kaon condensates or hyperons in neutron star inner cores cannot be easily confirmed. For example, for the equations of state studied in this paper, even a gravitational wave signal with a signal-to-noise ratio as high as 60 would not allow us to claim a detection of kaon condensates or hyperons with confidence greater than 5 to 1. On the other hand, if kaon condensates and hyperons do not form in neutron stars, a gravitational wave signal with similar signal-to-noise ratio would be able to constrain their existence with an 11 to 1 confidence for high-mass systems.
24 pages, 15 figures, final published version
References in corpus (39)
- The Confrontation between General Relativity and Experiment
- A Massive Pulsar in a Compact Relativistic Binary
- Neutron Star Observations: Prognosis for Equation of State Constraints
- Constraining neutron star tidal Love numbers with gravitational wave detectors
- Robust parameter estimation for compact binaries with ground-based gravitational-wave observations using the LALInference software library
- Constraints on a phenomenologically parameterized neutron-star equation of state
- BayesWave: Bayesian Inference for Gravitational Wave Bursts and Instrument Glitches
- Post-1-Newtonian tidal effects in the gravitational waveform from binary inspirals
- Binary Neutron Star Mergers: Dependence on the Nuclear Equation of State
- Modeling the complete gravitational wave spectrum of neutron star mergers
- Spectral properties of the post-merger gravitational-wave signal from binary neutron stars
- BayesLine: Bayesian Inference for Spectral Estimation of Gravitational Wave Detector Noise
- Modeling the dynamics of tidally-interacting binary neutron stars up to merger
- Constraining the neutron star equation of state with gravitational wave signals from coalescing binary neutron stars
- Reconstructing the neutron-star equation of state with gravitational-wave detectors from a realistic population of inspiralling binary neutron stars
- Hyperon mixing and universal many-body repulsion in neutron stars
- Revealing the high-density equation of state through binary neutron star mergers
- I-Love-Q, Spontaneously: Slowly Rotating Neutron Stars in Scalar-Tensor Theories
- Tests of Bayesian Model Selection Techniques for Gravitational Wave Astronomy
- Constraining and applying a generic high-density equation of state
- Multipolar universal relations between f-mode frequency and tidal deformability of compact stars
- Projected Constraints on Scalarization with Gravitational Waves from Neutron Star Binaries
- Quadrupole Moments of Rapidly Rotating Compact Objects in Dilatonic Einstein-Gauss-Bonnet Theory
- Prospects For High Frequency Burst Searches Following Binary Neutron Star Coalescence With Advanced Gravitational Wave Detectors
- I-Love-Q anisotropically: Universal relations for compact stars with scalar pressure anisotropy
- Why I-Love-Q
- A Bayesian Approach to the Detection Problem in Gravitational Wave Astronomy
- Gravitational waves from BH-NS binaries: Effective Fisher matrices and parameter estimation using higher harmonics
- Rotating proto-neutron stars: spin evolution, maximum mass and I-Love-Q relations
- Exploring tidal effects of coalescing binary neutron stars in numerical relativity II: Longterm simulations
- Universal I-Q relations for rapidly rotating neutron and strange stars in scalar-tensor theories
- Parameter estimation on compact binary coalescences with abruptly terminating gravitational waveforms
- Detection and Parameter Estimation of Gravitational Waves from Compact Binary Inspirals with Analytical Double-Precessing Templates
- Toward Realistic and Practical No-Hair Relations for Neutron Stars in the Non-Relativistic Limit
- I-Love relation for incompressible stars and realistic stars
- Relating Follicly-Challenged Compact Stars to Bald Black Holes
- Improved Universality in the Neutron Star Three-Hair Relations
- Role of higher order couplings in the presence of kaons in relativistic mean field description of neutron stars
- Antikaons and higher order couplings in relativistic-mean field study of neutron stars
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- Constraining the Maximum Mass of Neutron Stars From Multi-Messenger Observations of GW170817
- The Effective Field Theorist's Approach to Gravitational Dynamics
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- Approximate Universal Relations for Neutron Stars and Quark Stars
- Nonparametric constraints on neutron star matter with existing and upcoming gravitational wave and pulsar observations
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- Improving the NRTidal model for binary neutron star systems
- Gravitational waves from neutron star mergers and their relation to the nuclear equation of state
- Constructing Gravitational Waves from Generic Spin-Precessing Compact Binary Inspirals
- Model comparison from LIGO-Virgo data on GW170817's binary components and consequences for the merger remnant
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- Science with the TianQin observatory: Preliminary results on testing the no-hair theorem with ringdown signals
- Empirical relations for gravitational-wave asteroseismology of binary neutron star mergers
- A lower limit on the heat capacity of the neutron star core
- Relevance of tidal effects and post-merger dynamics for binary neutron star parameter estimation
- Uncertainty limits on neutron star radius measurements with gravitational waves
- Simulations of inspiraling and merging double neutron stars using the Spectral Einstein Code
- Spectral classification of gravitational-wave emission and equation of state constraints in binary neutron star mergers
- Astrophysical constraints on compact objects in 4D Einstein-Gauss-Bonnet gravity
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- Dynamical tides in coalescing superfluid neutron star binaries with hyperon cores and their detectability with third generation gravitational-wave detectors
- Low-mass neutron stars: universal relations, the nuclear symmetry energy and gravitational radiation
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- Measuring neutron star tidal deformability with Advanced LIGO: a Bayesian analysis of neutron star - black hole binary observations
- Upper limit set by causality on the tidal deformability of a neutron star
- Neutron stars and the dense matter equation of state: from microscopic theory to macroscopic observations
- Systematic analysis of the impacts of symmetry energy parameters on neutron star properties
- nEoS: Neutron Star Equation of State from hadron physics alone
- Binary White Dwarfs as Laboratories for Extreme Gravity with LISA
- Astrophysical Implications of Neutron Star Inspiral and Coalescence
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- Oscillation Modes of Strange Quark Stars with a Strangelet Crust
- Spontaneous Radiation of Black Holes
- Improved Analytic Love-C Relations for Neutron Stars
- Constraining gravity with hadron physics: neutron stars, modified gravity and gravitational waves
- Exploring the Potential for Detecting Rotational Instabilities in Binary Neutron Star Merger Remnants with Gravitational Wave Detectors
- Microscopic constraints for the equation of state and structure of neutron stars: a Bayesian model mixing framework
- Properties of the Object HESS J1731-347 as a Twin Compact Star
- Gravitational-wave model for neutron star merger remnants with supervised learning
- Comparing Bayes factors and hierarchical inference for testing general relativity with gravitational waves
- Probing neutron stars with the full pre-merger and post-merger gravitational wave signal from binary coalescences
- I-Love-Q Relations of Fermion-Boson Stars