Sub-radian-accuracy gravitational waves from coalescing binary neutron stars II: Systematic study on the equation of state, binary mass, and mass ratio

Abstract

We report results of numerical relativity simulations for {\it new} 26 non-spinning binary neutron star systems with 6 grid resolutions using an adaptive mesh refinement numerical re\ lativity code {\tt SACRA-MPI}. The finest grid spacing is $\approx 64$--$85$ m, depending on the systems. First, we derive long-term high-precision inspiral gravitational waveforms and show that the accumulated gravitational-wave phase error due to the finite grid resolution is less than $0.5$ rad during more than $200$ rad phase evolution irrespective of the systems. We also find that the gravitational-wave phase error for a binary system with a tabulated equation of state (EOS) is comparable to that for a piecewise polytropic EOS. Then we validate the SACRA inspiral gravitational waveform template, which will be used to extract tidal deformability from gravitational wave observation, and find that accuracy of \ our waveform modeling is $\lesssim 0.1$ rad in the gravitational-wave phase and $\lesssim 20\%$ in the gravitational-wave amplitude up to the gravitational-wave frequency $1000$ Hz.\ Finally, we calibrate the proposed universal relations between a post-merger gravitational wave signal and tidal deformability/neutron star radius in the literature and show that th\ ey suffer from systematics and many relations proposed as universal are not very universal. Improved fitting formulae are also proposed.

26 pages, 23 figures, to be appeared in PRD. See http://www2.yukawa.kyoto-u.ac.jp/~nr_kyoto/SACRA_PUB/catalog.html for waveform data

References in corpus (48)

• GW170817: Observation of Gravitational Waves from a Binary Neutron Star Inspiral
• Advanced Virgo: a 2nd generation interferometric gravitational wave detector
• Gravitational Waves and Gamma-rays from a Binary Neutron Star Merger: GW170817 and GRB 170817A
• Advanced LIGO
• An Ordinary Short Gamma-Ray Burst with Extraordinary Implications: Fermi-GBM Detection of GRB 170817A
• Constraining neutron star tidal Love numbers with gravitational wave detectors
• Exploring the Sensitivity of Next Generation Gravitational Wave Detectors
• Swope Supernova Survey 2017a (SSS17a), the Optical Counterpart to a Gravitational Wave Source
• Spectroscopic identification of r-process nucleosynthesis in a double neutron star merger
• INTEGRAL Detection of the First Prompt Gamma-Ray Signal Coincident with the Gravitational Wave Event GW170817
• A kilonova as the electromagnetic counterpart to a gravitational-wave source
• The X-ray counterpart to the gravitational wave event GW 170817
• Light Curves of the Neutron Star Merger GW170817/SSS17a: Implications for R-Process Nucleosynthesis
• Constraints on a phenomenologically parameterized neutron-star equation of state
• Illuminating Gravitational Waves: A Concordant Picture of Photons from a Neutron Star Merger
• The Electromagnetic Counterpart of the Binary Neutron Star Merger LIGO/Virgo GW170817. I. Dark Energy Camera Discovery of the Optical Counterpart
• Swift and NuSTAR observations of GW170817: detection of a blue kilonova
• The Electromagnetic Counterpart of the Binary Neutron Star Merger LIGO/VIRGO GW170817. IV. Detection of Near-infrared Signatures of r-process Nucleosynthesis with Gemini-South
• A Radio Counterpart to a Neutron Star Merger
• The Electromagnetic Counterpart of the Binary Neutron Star Merger LIGO/VIRGO GW170817. III. Optical and UV Spectra of a Blue Kilonova From Fast Polar Ejecta
• The discovery of the electromagnetic counterpart of GW170817: kilonova AT 2017gfo/DLT17ck
• The SXS Collaboration catalog of binary black hole simulations
• The Electromagnetic Counterpart of the Binary Neutron Star Merger LIGO/VIRGO GW170817. V. Rising X-ray Emission from an Off-Axis Jet
• Calibration of Moving Puncture Simulations
• Post-1-Newtonian tidal effects in the gravitational waveform from binary inspirals
• The Electromagnetic Counterpart of the Binary Neutron Star Merger LIGO/VIRGO GW170817. VI. Radio Constraints on a Relativistic Jet and Predictions for Late-Time Emission from the Kilonova Ejecta
• Constraint on the maximum mass of neutron stars using GW170817 event
• Dynamical Tides in General Relativity: Effective Action and Effective-One-Body Hamiltonian
• Spectral properties of the post-merger gravitational-wave signal from binary neutron stars
• Electromagnetic Evidence that SSS17a is the Result of a Binary Neutron Star Merger
• Search for post-merger gravitational waves from the remnant of the binary neutron star merger GW170817
• Improving the NRTidal model for binary neutron star systems
• Modeling the dynamics of tidally-interacting binary neutron stars up to merger
• A Deep Chandra X-ray Study of Neutron Star Coalescence GW170817
• High resolution numerical-relativity simulations for the merger of binary magnetized neutron stars
• Simulating coalescing compact binaries by a new code SACRA
• J-GEM observations of an electromagnetic counterpart to the neutron star merger GW170817
• Numerical relativity simulations of neutron star merger remnants using conservative mesh refinement
• Revisiting the lower bound on tidal deformability derived by AT 2017gfo
• Observations of the first electromagnetic counterpart to a gravitational wave source by the TOROS collaboration
• Optical Follow-up of Gravitational-wave Events with Las Cumbres Observatory
• Sub-radian-accuracy gravitational waveforms of coalescing binary neutron stars in numerical relativity
• Surrogate model for an aligned-spin effective one body waveform model of binary neutron star inspirals using Gaussian process regression
• Gravitational waves from remnant massive neutron stars of binary neutron star merger: Viscous hydrodynamics effects
• $Abinitio$ constraints on thermal effects of the nuclear equation of state
• Exploring tidal effects of coalescing binary neutron stars in numerical relativity II: Longterm simulations
• Gravitational waveforms from SpEC simulations : neutron star-neutron star and low-mass black hole-neutron star binaries
• Smooth equations of state for high-accuracy simulations of neutron star binaries

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• Emergence of microphysical bulk viscosity in binary neutron star post-merger dynamics
• New and Robust Gravitational-Waveform Model for High-Mass-Ratio Binary Neutron Star Systems with Dynamical Tidal Effects
• The SXS Collaboration's third catalog of binary black hole simulations
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• Binary neutron star mergers as a probe of quark-hadron crossover equations of state
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• Unraveling information about supranuclear-dense matter from the complete binary neutron star coalescence process using future gravitational-wave detector networks
• Using machine learning to parametrize postmerger signals from binary neutron stars
• Smooth equations of state for high-accuracy simulations of neutron star binaries
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• Universal Relations for Binary Neutron Star Mergers with Long-lived Remnants
• Numerical Inside View of Hypermassive Remnant Models for GW170817
• Effects of nuclear matter properties in neutron star mergers
• Black-Hole Neutron Star Simulations with the BAM code: First Tests and Simulations
• Signature of hadron-quark crossover in binary-neutron-star mergers
• Gravitational Wave emission in Binary Neutron Star early post-merger within a dark environment
• Modeling matter(s) in SEOBNRv5THM: Generating fast and accurate effective-one-body waveforms for spin-aligned binary neutron stars
• Investigating the Impact of Higher-Order Phase Transitions in Binary Neutron-Star Mergers
• Dependence of postmerger properties on the thermal heating efficiency in neutron star mergers
• Insights into Binary Neutron Star Merger Simulations: A Multi-Code Comparison
• Reducing orbital eccentricity in initial data of black hole--neutron star binaries in the puncture framework
• Numerical Relativity Estimates of the Remnant Recoil Velocity in Binary Neutron Star Mergers
• Neutron star evolution by combining discontinuous Galerkin and finite volume methods
• Gravitational-wave asteroseismology with f-modes from neutron star binaries at the merger phase
• Convective stability analysis of massive neutron stars formed in binary mergers
• A User-Friendly Python Interface for the Numerical Relativity Code AMSS-NCKU