Laying the foundation of the effective-one-body waveform models SEOBNRv5: improved accuracy and efficiency for spinning non-precessing binary black holes

Abstract

We present SEOBNRv5HM, a more accurate and faster inspiral-merger-ringdown gravitational waveform model for quasi-circular, spinning, nonprecessing binary black holes within the effective-one-body (EOB) formalism. Compared to its predecessor, SEOBNRv4HM, the waveform model i) incorporates recent high-order post- Newtonian results in the inspiral, with improved resummations, ii) includes the gravitational modes (l, |m|) = (3, 2), (4, 3), in addition to the (2, 2), (3, 3), (2, 1), (4, 4), (5, 5) modes already implemented in SEOBNRv4HM, iii) is calibrated to larger mass-ratios and spins using a catalog of 442 numerical-relativity (NR) simulations and 13 additional waveforms from black-hole perturbation theory, iv) incorporates information from second-order gravitational self-force (2GSF) in the nonspinning modes and radiation-reaction force. Computing the unfaithfulness against NR simulations, we find that for the dominant (2, 2) mode the maximum unfaithfulness in the total mass range $10-300M_{\odot }$ is below $10^{-3}$ for 90% of the cases (38% for SEOBNRv4HM). When including all modes up to l = 5 we find 98% (49%) of the cases with unfaithfulness below $10^{-2}(10^{-3})$, while these numbers reduce to 88% (5%) when using SEOBNRv4HM. Furthermore, the model shows improved agreement with NR in other dynamical quantities (e.g., the angular momentum flux and binding energy), providing a powerful check of its physical robustness. We implemented the waveform model in a high-performance Python package (pySEOBNR), which leads to evaluation times faster than SEOBNRv4HM by a factor 10 to 50, depending on the configuration, and provides the flexibility to easily include spin-precession and eccentric effects, thus making it the starting point for a new generation of EOBNR waveform models (SEOBNRv5) to be employed for upcoming observing runs of the LIGO-Virgo-KAGRA detectors.

arXiv commentv2: matches version published in Phys. Rev. D

References in corpus (188)

• Array Programming with NumPy
• Observation of Gravitational Waves from a Binary Black Hole Merger
• emcee: The MCMC Hammer
• Advanced Virgo: a 2nd generation interferometric gravitational wave detector
• GWTC-1: A Gravitational-Wave Transient Catalog of Compact Binary Mergers Observed by LIGO and Virgo during the First and Second Observing Runs
• Advanced LIGO
• GW151226: Observation of Gravitational Waves from a 22-Solar-Mass Binary Black Hole Coalescence
• GWTC-2: Compact Binary Coalescences Observed by LIGO and Virgo During the First Half of the Third Observing Run
• dynesty: A Dynamic Nested Sampling Package for Estimating Bayesian Posteriors and Evidences
• GW190814: Gravitational Waves from the Coalescence of a 23 M${}_{\odot }$ Black Hole with a 2.6 M${}_{\odot }$ Compact Object
• GWTC-3: Compact Binary Coalescences Observed by LIGO and Virgo During the Second Part of the Third Observing Run
• Evolution of Binary Black Hole Spacetimes
• Accurate Evolutions of Orbiting Black-Hole Binaries Without Excision
• Effective one-body approach to general relativistic two-body dynamics
• Gravitational wave extraction from an inspiraling configuration of merging black holes
• Bilby: A user-friendly Bayesian inference library for gravitational-wave astronomy
• Sensitivity Studies for Third-Generation Gravitational Wave Observatories
• Frequency-domain gravitational waves from non-precessing black-hole binaries. II. A phenomenological model for the advanced detector era
• Transition from inspiral to plunge in binary black hole coalescences
• Tests of General Relativity with Binary Black Holes from the second LIGO-Virgo Gravitational-Wave Transient Catalog
• Frequency-domain gravitational waves from non-precessing black-hole binaries. I. New numerical waveforms and anatomy of the signal
• Observing binary inspiral in gravitational radiation: One interferometer
• A simple model of complete precessing black-hole-binary gravitational waveforms
• Coalescence of Two Spinning Black Holes: An Effective One-Body Approach
• Inspiral-merger-ringdown waveforms for black-hole binaries with non-precessing spins
• An improved effective-one-body model of spinning, nonprecessing binary black holes for the era of gravitational-wave astrophysics with advanced detectors
• Computationally efficient models for the dominant and sub-dominant harmonic modes of precessing binary black holes
• Open data from the first and second observing runs of Advanced LIGO and Advanced Virgo
• Matching post-Newtonian and numerical relativity waveforms: systematic errors and a new phenomenological model for non-precessing black hole binaries
• Inspiral, merger and ring-down of equal-mass black-hole binaries
• On the determination of the last stable orbit for circular general relativistic binaries at the third post-Newtonian approximation
• Effective-one-body model for black-hole binaries with generic mass ratios and spins
• An introduction to Bayesian inference in gravitational-wave astronomy: parameter estimation, model selection, and hierarchical models
• The SXS Collaboration catalog of binary black hole simulations
• A catalog of 174 binary black-hole simulations for gravitational-wave astronomy
• Surrogate models for precessing binary black hole simulations with unequal masses
• Sensitivity and Performance of the Advanced LIGO Detectors in the Third Observing Run
• Inspiral-merger-ringdown waveforms of spinning, precessing black-hole binaries in the effective-one-body formalism
• New binary black hole mergers in the second observing run of Advanced LIGO and Advanced Virgo
• Gravitational scattering, post-Minkowskian approximation and Effective One-Body theory
• Eigenvalues and eigenfunctions of spin-weighted spheroidal harmonics in four and higher dimensions
• Effects of neutron-star dynamic tides on gravitational waveforms within the effective-one-body approach
• Phenomenological template family for black-hole coalescence waveforms
• Multipolar Effective-One-Body Waveforms for Precessing Binary Black Holes: Construction and Validation
• IMRPhenomXHM: A multi-mode frequency-domain model for the gravitational wave signal from non-precessing black-hole binaries
• High-energy gravitational scattering and the general relativistic two-body problem
• Time-domain effective-one-body gravitational waveforms for coalescing compact binaries with nonprecessing spins, tides and self-spin effects
• Setting the cornerstone for the IMRPhenomX family of models for gravitational waves from compact binaries: The dominant harmonic for non-precessing quasi-circular black holes
• Toward faithful templates for non-spinning binary black holes using the effective-one-body approach
• Surrogate model of hybridized numerical relativity binary black hole waveforms
• Transition from inspiral to plunge in precessing binaries of spinning black holes
• Improved resummation of post-Newtonian multipolar waveforms from circularized compact binaries
• Dynamical Tides in General Relativity: Effective Action and Effective-One-Body Hamiltonian
• Enriching the Symphony of Gravitational Waves from Binary Black Holes by Tuning Higher Harmonics
• Inspiral-merger-ringdown multipolar waveforms of nonspinning black-hole binaries using the effective-one-body formalism
• Real-time gravitational-wave science with neural posterior estimation
• Prototype effective-one-body model for nonprecessing spinning inspiral-merger-ringdown waveforms
• Improving the NRTidal model for binary neutron star systems
• First higher-multipole model of gravitational waves from spinning and coalescing black-hole binaries
• Closed-form tidal approximants for binary neutron star gravitational waveforms constructed from high-resolution numerical relativity simulations
• The third post-Newtonian gravitational wave polarisations and associated spherical harmonic modes for inspiralling compact binaries in quasi-circular orbits
• Modeling the dynamics of tidally-interacting binary neutron stars up to merger
• Faithful Effective-One-Body waveforms of small-mass-ratio coalescing black-hole binaries
• Effective-one-body waveforms calibrated to numerical relativity simulations: coalescence of non-spinning, equal-mass black holes
• The final spin from binary black holes in quasi-circular orbits
• Validating the effective-one-body model of spinning, precessing binary black holes against numerical relativity
• An improved effective-one-body Hamiltonian for spinning black-hole binaries
• Phenomenological model for the gravitational-wave signal from precessing binary black holes with two-spin effects
• Fast prediction and evaluation of gravitational waveforms using surrogate models
• A Numerical Relativity Waveform Surrogate Model for Generically Precessing Binary Black Hole Mergers
• Fast and accurate prediction of numerical relativity waveforms from binary black hole coalescences using surrogate models
• Effective one body approach to the dynamics of two spinning black holes with next-to-leading order spin-orbit coupling
• Frequency domain reduced order models for gravitational waves from aligned-spin compact binaries
• Hierarchical data-driven approach to fitting numerical relativity data for nonprecessing binary black holes with an application to final spin and radiated energy
• 3-OGC: Catalog of gravitational waves from compact-binary mergers
• Including higher order multipoles in gravitational-wave models for precessing binary black holes
• Fourth post-Newtonian effective one-body dynamics
• A new effective-one-body description of coalescing nonprecessing spinning black-hole binaries
• Gravitational self-force on a particle in eccentric orbit around a Schwarzschild black hole
• Hamiltonian of a spinning test-particle in curved spacetime
• Frequency domain reduced order model of aligned-spin effective-one-body waveforms with generic mass-ratios and spins
• Comparing Effective-One-Body gravitational waveforms to accurate numerical data
• Improved effective-one-body description of coalescing nonspinning black-hole binaries and its numerical-relativity completion
• A data-analysis driven comparison of analytic and numerical coalescing binary waveforms: nonspinning case
• New binary black hole mergers in the LIGO--Virgo O3a data
• A faithful analytical effective one body waveform model for spin-aligned, moderately eccentric, coalescing black hole binaries
• Accurate Effective-One-Body waveforms of inspiralling and coalescing black-hole binaries
• Energetics of two-body Hamiltonians in post-Minkowskian gravity
• Gravitational-wave tails of tails
• SEOBNRv5PHM: Next generation of accurate and efficient multipolar precessing-spin effective-one-body waveforms for binary black holes
• A Surrogate Model of Gravitational Waveforms from Numerical Relativity Simulations of Precessing Binary Black Hole Mergers
• Effective-one-body waveforms calibrated to numerical relativity simulations: coalescence of non-precessing, spinning, equal-mass black holes
• High-accuracy numerical simulation of black-hole binaries: Computation of the gravitational-wave energy flux and comparisons with post-Newtonian approximants
• Directly comparing GW150914 with numerical solutions of Einstein's equations for binary black hole coalescence
• Novel approach to binary dynamics: application to the fifth post-Newtonian level
• Gravitational waveforms for compact binaries from second-order self-force theory
• Post-Newtonian factorized multipolar waveforms for spinning, non-precessing black-hole binaries
• A multipolar effective one body waveform model for spin-aligned black hole binaries
• Faithful Effective-One-Body waveforms of equal-mass coalescing black-hole binaries
• Effective one body multipolar waveform model for spin-aligned, quasi-circular, eccentric, hyperbolic black hole binaries
• Effective-one-body multipolar waveforms for eccentric binary black holes with non-precessing spins
• Gravitational radiation reaction along general orbits in the effective one-body formalism
• Gravitational self-force and the effective-one-body formalism between the innermost stable circular orbit and the light ring
• Nested Sampling with Normalising Flows for Gravitational-Wave Inference
• Binary dynamics at the fifth and fifth-and-a-half post-Newtonian orders
• Eccentric binary black hole surrogate models for the gravitational waveform and remnant properties: comparable mass, nonspinning case
• Frequency domain reduced order model of aligned-spin effective-one-body waveforms with higher-order modes
• Gravitational-wave energy flux for compact binaries through second order in the mass ratio
• Sixth post-Newtonian nonlocal-in-time dynamics of binary systems
• Extending the effective-one-body Hamiltonian of black-hole binaries to include next-to-next-to-leading spin-orbit couplings
• New twists in compact binary waveform modelling: a fast time domain model for precession
• A tapering window for time-domain templates and simulated signals in the detection of gravitational waves from coalescing compact binaries
• Foundations of an effective-one-body model for coalescing binaries on eccentric orbits
• Constraints on quasi-normal-mode frequencies with LIGO-Virgo binary-black-hole observations
• Modeling the gravitational wave signature of neutron star black hole coalescences: PhenomNSBH
• Improved methods for simulating nearly extremal binary black holes
• Neural Importance Sampling for Rapid and Reliable Gravitational-Wave Inference
• On the properties of the massive binary black hole merger GW170729
• Impact of Higher Harmonics in Searching for Gravitational Waves from Non-Spinning Binary Black Holes
• Mixing of spherical and spheroidal modes in perturbed Kerr black holes
• Gravitational waves and mass ejecta from binary neutron star mergers: Effect of the stars' rotation
• qnm: A Python package for calculating Kerr quasinormal modes, separation constants, and spherical-spheroidal mixing coefficients
• Effective-one-body waveforms for precessing coalescing compact binaries with post-newtonian Twist
• A Multipolar Effective One Body Model for Non-Spinning Black Hole Binaries
• Surrogate model for an aligned-spin effective one body waveform model of binary neutron star inspirals using Gaussian process regression
• Effective-one-body multipolar waveform for tidally interacting binary neutron stars up to merger
• Final spin and radiated energy in numerical simulations of binary black holes with equal masses and equal, aligned or anti-aligned spins
• Gravitational Self-Force Correction to the Innermost Stable Circular Equatorial Orbit of a Kerr Black Hole
• An aligned-spin neutron-star--black-hole waveform model based on the effective-one-body approach and numerical-relativity simulations
• Energy versus Angular Momentum in Black Hole Binaries
• A Surrogate Model for Gravitational Wave Signals from Comparable- to Large- Mass-Ratio Black Hole Binaries
• Modeling multipolar gravitational-wave emission from small mass-ratio mergers
• IMRPhenomTP: A phenomenological time domain model for dominant quadrupole gravitational wave signal of coalescing binary black holes
• The final twist: A model of gravitational waves from precessing black-hole binaries through merger and ringdown
• Effective one body Hamiltonian of two spinning black-holes with next-to-next-to-leading order spin-orbit coupling
• Radiation-reaction force and multipolar waveforms for eccentric, spin-aligned binaries in the effective-one-body formalism
• Modeling the source of GW150914 with targeted numerical-relativity simulations
• Energetics and phasing of nonprecessing spinning coalescing black hole binaries
• Tests of General Relativity with Gravitational-Wave Observations using a Flexible--Theory-Independent Method
• Small mass plunging into a Kerr black hole: Anatomy of the inspiral-merger-ringdown waveforms
• On the accuracy and precision of numerical waveforms: Effect of waveform extraction methodology
• Bilby-MCMC: An MCMC sampler for gravitational-wave inference
• Enhancing the SEOBNRv5 effective-one-body waveform model with second-order gravitational self-force fluxes
• Nonlinear-in-spin effects in effective-one-body waveform models of spin-aligned, inspiralling, neutron star binaries
• Rush the inspiral: efficient Effective One Body time-domain gravitational waveforms
• Effective-one-body waveforms for binary neutron stars using surrogate models
• Canonical Hamiltonian for an extended test body in curved spacetime: To quadratic order in spin
• Spin effects on neutron star fundamental-mode dynamical tides: phenomenology and comparison to numerical simulations
• A hybrid post-Newtonian -- effective-one-body scheme for spin-precessing compact-binary waveforms
• Strong-field scattering of two black holes: Numerical Relativity meets Post-Minkowskian gravity
• Gravitational spin-orbit coupling through third-subleading post-Newtonian order: from first-order self-force to arbitrary mass ratios
• Decoding mode-mixing in black-hole merger ringdown
• Statistical Gravitational Waveform Models: What to Simulate Next?
• Accuracy and precision of gravitational-wave models of inspiraling neutron star -- black hole binaries with spin: comparison with numerical relativity in the low-frequency regime
• Gravitational-wave surrogate models powered by artificial neural networks: The ANN-Sur for waveform generation
• Gravitational spin-orbit and aligned spin${}_1$-spin${}_2$ couplings through third-subleading post-Newtonian orders
• Targeted large mass ratio numerical relativity surrogate waveform model for GW190814
• Tests of general relativity in the nonlinear regime: a parametrized plunge-merger-ringdown gravitational waveform model
• Precision Photon Spectra for Wino Annihilation
• Nearly extremal apparent horizons in simulations of merging black holes
• A Precessing Numerical Relativity Waveform Surrogate Model for Binary Black Holes: A Gaussian Process Regression Approach
• Measuring precession in asymmetric compact binaries
• Spin-multipole effects in binary black holes and the test-body limit
• New Avenue for Accurate Analytical Waveforms and Fluxes for Eccentric Compact Binaries
• Importance nested sampling with normalising flows
• Towards the routine use of subdominant harmonics in gravitational-wave inference: re-analysis of GW190412 with generation X waveform models
• Comparing Effective One Body Hamiltonians for spin-aligned coalescing binaries
• Gravitational Spin-Orbit Hamiltonian at NNNLO in the post-Newtonian framework
• Assessing the Readiness of Numerical Relativity for LISA and 3G Detectors
• Spin contributions to the gravitational-waveform modes for spin-aligned binaries at the 3.5PN order
• Completing the Fifth PN Precision Frontier via the EFT of Spinning Gravitating Objects
• On modeling for Kerr black holes: Basis learning, QNM frequencies, and spherical-spheroidal mixing coefficients
• N${}^3$LO Quadratic-in-Spin Interactions for Generic Compact Binaries
• N${}^3$LO Spin-Orbit Interaction via the EFT of Spinning Gravitating Objects
• Gravitational Quadratic-in-Spin Hamiltonian at NNNLO in the post-Newtonian framework
• Complete gravitational-waveform amplitude modes for quasi-circular compact binaries to the 3.5PN order
• Fourth post-Newtonian effective-one-body Hamiltonians with generic spins
• Accelerating multimodal gravitational waveforms from precessing compact binaries with artificial neural networks
• Regression methods in waveform modeling: a comparative study
• A new effective-one-body Hamiltonian with next-to-leading order spin-spin coupling
• Assessing the Energetics of Spinning Binary Black Hole Systems
• Numerical-Relativity-Informed Effective-One-Body model for Black-Hole-Neutron-Star Mergers with Higher Modes and Spin Precession
• Combining effective-one-body accuracy and reduced-order-quadrature speed for binary neutron star merger parameter estimation with machine learning
• Fast post-adiabatic waveforms in the time domain: Applications to compact binary coalescences in LIGO and Virgo
• Including mode mixing in a higher-multipole model for gravitational waveforms from nonspinning black-hole binaries
• On subregion action complexity in AdS${}_3$ and in the BTZ black hole
• From the EFT of Spinning Gravitating Objects to Poincaré and Gauge Invariance at the 4.5PN Precision Frontier
• Arrival Times of Gravitational Radiation Peaks for Binary Inspiral

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