Residual eccentricity as a systematic uncertainty on the formation channels of binary black holes

Abstract

Resolving the formation channel(s) of merging binary black holes is a key goal in gravitational-wave astronomy. The orbital eccentricity is believed to be a precious tracer of the underlying formation pathway, but is largely dissipated during the usually long inspiral between black hole formation and merger. Most gravitational-wave sources are thus expected to enter the sensitivity windows of current detectors on configurations that are compatible with quasi-circular orbits. In this paper, we investigate the impact of "negligible" residual eccentricity -- lower than currently detectable by LIGO/Virgo -- on our ability to infer the formation history of binary black holes, focusing in particular on their spin orientations. We trace the evolution of both observed and synthetic gravitational-wave events backward in time, while resampling their residual eccentricities to values that are below the detectability threshold. Eccentricities in-band as low as $\sim 10^{-4}$ can lead to significant biases when reconstructing the spin directions, especially in the case of loud, highly precessing systems. Residual eccentricity thus act like a systematic uncertainty for our astrophysical inference. As a mitigation strategy, one can marginalize the posterior distribution over the residual eccentricity using astrophysical predictions.

10 pages, 4 figures, 2 tables

References in corpus (59)

• GWTC-1: A Gravitational-Wave Transient Catalog of Compact Binary Mergers Observed by LIGO and Virgo during the First and Second Observing Runs
• GWTC-2: Compact Binary Coalescences Observed by LIGO and Virgo During the First Half of the Third Observing Run
• GWTC-3: Compact Binary Coalescences Observed by LIGO and Virgo During the Second Part of the Third Observing Run
• Science Case for the Einstein Telescope
• Coalescing binary systems of compact objects to (post)$^{5/2}-Newtonian order. V. Spin Effects
• Observing binary inspiral in gravitational radiation: One interferometer
• Computationally efficient models for the dominant and sub-dominant harmonic modes of precessing binary black holes
• Surrogate models for precessing binary black hole simulations with unequal masses
• Towards models of gravitational waveforms from generic binaries II: Modelling precession effects with a single effective precession parameter
• The evolutionary roads leading to low effective spins, high black hole masses, and O1/O2 rates of LIGO/Virgo binary black holes
• Illuminating Black Hole Binary Formation Channels with Spins in Advanced LIGO
• The Formation of Eccentric Compact Binary Inspirals and the Role of Gravitational Wave Emission in Binary-Single Stellar Encounters
• Eccentric Black Hole Mergers Forming in Globular Clusters
• Multipolar Effective-One-Body Waveforms for Precessing Binary Black Holes: Construction and Validation
• Analysis of spin precession in binary black hole systems including quadrupole-monopole interaction
• Hierarchical mergers of stellar-mass black holes and their gravitational-wave signatures
• The origin of spin in binary black holes: Predicting the distributions of the main observables of Advanced LIGO
• Spin orientations of merging black holes formed from the evolution of stellar binaries
• Modeling Dense Star Clusters in the Milky Way and Beyond with the $\text{CMC}$ Cluster Catalog
• AGN as Potential Factories for Eccentric Black Hole Mergers
• Hierarchical analysis of gravitational-wave measurements of binary black hole spin-orbit misalignments
• Use of gravitational waves to probe the formation channels of compact binaries
• Constraining Formation Models of Binary Black Holes with Gravitational-Wave Observations
• Searching for Eccentricity: Signatures of Dynamical Formation in the First Gravitational-Wave Transient Catalogue of LIGO and Virgo
• Resonant-plane locking and spin alignment in stellar-mass black-hole binaries: a diagnostic of compact-binary formation
• Measuring eccentricity in binary black hole inspirals with gravitational waves
• Multi-timescale analysis of phase transitions in precessing black-hole binaries
• Search for Eccentric Binary Black Hole Mergers with Advanced LIGO and Advanced Virgo during their First and Second Observing Runs
• Effective potentials and morphological transitions for binary black-hole spin precession
• Four eccentric mergers increase the evidence that LIGO--Virgo--KAGRA's binary black holes form dynamically
• General-relativistic precession in a black-hole binary
• Population synthesis of black hole binary mergers from star clusters
• Multiband gravitational-wave event rates and stellar physics
• Binary black hole mergers: formation and populations
• Eccentricity or spin precession? Distinguishing subdominant effects in gravitational-wave data
• The implications of high BH spins on the origin of BH-BH mergers
• A generalized precession parameter ${\chi }_{\mathrm{p}}$ to interpret gravitational-wave data
• Bayesian parameter estimation of stellar-mass black-hole binaries with LISA
• Expanding the LISA Horizon from the Ground
• LIGO--Virgo correlations between mass ratio and effective inspiral spin: testing the active galactic nuclei channel
• The role of supernova convection for the lower mass gap in the isolated binary formation of gravitational wave sources
• Pathways for producing binary black holes with large misaligned spins in the isolated formation channel
• What You Don't Know Can Hurt You: Use and Abuse of Astrophysical Models in Gravitational-wave Population Analyses
• Nonlinear quasinormal mode detectability with next-generation gravitational wave detectors
• Archival searches for stellar-mass binary black holes in LISA
• Black-hole mergers in disklike environments could explain the observed $q$-${\chi }_{\mathrm{eff}}$ correlation
• Flipping spins in mass transferring binaries and origin of spin-orbit misalignment in binary black holes
• Tossing Black Hole Spin Axes
• Resolving the eccentricity of stellar mass binary black holes with next generation ground-based gravitational wave detectors
• Gravitational-wave population inference at past time infinity
• Efficient multi-timescale dynamics of precessing black-hole binaries
• Which black hole is spinning? Probing the origin of black-hole spin with gravitational waves
• Population-informed priors in gravitational-wave astronomy
• Inferring spin tilts at formation from gravitational wave observations of binary black holes: Interfacing precession-averaged and orbit-averaged spin evolution
• Spin-eccentricity interplay in merging binary black holes
• Detectability and parameter estimation of GWTC-3 events with LISA
• Symmetry breaking in merging binary black holes from young massive clusters and isolated binaries
• Quick recipes for gravitational-wave selection effects
• Inferring spin tilts of binary black holes at formation with plus-era gravitational wave detectors

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• Orbital eccentricity in general relativity from catastrophe theory
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• Distinguishing the Origin of Eccentric Black Hole Mergers with Gravitational-wave Spin Measurements
• Analysis and simulations of binary black hole merger spins -- the question of spin-axis tossing at black hole formation
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