Gravitational-wave sources from mergers of binary black-holes catalyzed by fly-bys interactions in the field

Abstract

Several scenarios were suggested for the origins of gravitational-wave (GW) sources from mergers of stellar binary black holes (BBHs). Here we propose a novel origin through catalyzed formation of GW-sources from ultra-wide binaries in the field. Such binaries experience perturbations from random stellar fly-bys which excite their eccentricities. Once a wide-binary is driven to a sufficiently small peri-center approach, GW-emission becomes significant, and the binary inspirals and merges. We derive an analytic model and verify it with numerical calculation to compute the merger rate to be $\sim 10\times {\mathrm{f}}_{\mathrm{wide}}{\mathrm{Gpc}}^{-3}\mathrm{y}{\mathrm{r}}^{-1}$ ($f_{\mathrm{wide}}$ is the fraction of wide BH-binaries), which is comparable to the observationally inferred rate. The observational signatures from this channel include spin-orbit misalignment; preference for high mass-ratio BBH; preference for high velocity-dispersion host-galaxies; and a uniform delay-time distribution.

arXiv commentComments are welcomed

References in corpus (44)

• On the variation of the Initial Mass Function
• Stellar Multiplicity
• The Milky Way Tomography with SDSS: I. Stellar Number Density Distribution
• A Comprehensive Study of Binary Compact Objects as Gravitational Wave Sources: Evolutionary Channels, Rates, and Physical Properties
• Compact Object Modeling with the StarTrack Population Synthesis Code
• Double Compact Objects I: The Significance Of The Common Envelope On Merger Rates
• Southern Massive Stars at High Angular Resolution: Observational Campaign and Companion Detection
• Binary Black Hole Mergers from Globular Clusters: Masses, Merger Rates, and the Impact of Stellar Evolution
• Merging binary black holes formed through chemically homogeneous evolution in short-period stellar binaries
• Secular evolution of compact binaries near massive black holes: gravitational wave sources and other exotica
• Double Compact Objects III: Gravitational Wave Detection Rates
• Binary black hole mergers from field triples: properties, rates and the impact of stellar evolution
• Eccentric Black Hole Mergers Forming in Globular Clusters
• Black Hole Mergers in Galactic Nuclei Induced by the Eccentric Kozai-Lidov Effect
• Post-Newtonian Dynamics in Dense Star Clusters: Formation, Masses, and Merger Rates of Highly-Eccentric Black Hole Binaries
• Post-Newtonian Dynamics in Dense Star Clusters: Highly-Eccentric, Highly-Spinning, and Repeated Binary Black Hole Mergers
• Compact Binary Merger Rates: Comparison with LIGO/Virgo Upper Limits
• On the rarity of double black hole binaries: consequences for gravitational-wave detection
• Investigating stellar-mass black hole kicks
• Black hole triple dynamics: breakdown of the orbit average approximation and implications for gravitational wave detections
• The formation of very wide binaries during the star cluster dissolution phase
• Black hole and neutron star mergers in galactic nuclei
• Black hole mergers from an evolving population of globular clusters
• Host Galaxies Catalog Used in LIGO Searches for Compact Binary Coalescence Events
• Greatly enhanced merger rates of compact-object binaries in non-spherical nuclear star clusters
• Black Hole Mergers From Globular Clusters Observable by LISA I: Eccentric Sources Originating From Relativistic $N$-body Dynamics
• On the rate of black hole binary mergers in galactic nuclei due to dynamical hardening
• Rapid Eccentricity Oscillations and the Mergers of Compact Objects in Hierarchical Triples
• Natal Kicks of Stellar-Mass Black Holes by Asymmetric Mass Ejection in Fallback Supernovae
• Estimates of black-hole natal kick velocities from observations of low-mass X-ray binaries
• Stellar-mass black holes in young massive and open stellar clusters and their role in gravitational-wave generation II
• Understanding Compact Object Formation and Natal Kicks I. Calculation Methods and the case of GRO J1655-40
• The impact of vector resonant relaxation on the evolution of binaries near a massive black hole: implications for gravitational wave sources
• Understanding Compact Object Formation and Natal Kicks: II. The case of XTE J1118+480
• On the origin of planets at very wide orbits from the re-capture of free floating planets
• Three-body encounters in the Galactic centre: the origin of the hypervelocity star SDSS J090745.0+024507
• The Galactic distribution of X-ray binaries and its implications for compact object formation and natal kicks
• Loss Cone Dynamics
• Precessional dynamics of black hole triples: binary mergers with near-zero effective spin
• A Comprehensive Study of Young Black Hole Populations
• Very Wide Binary Stars as the Primary Source of Stellar Collisions in the Galaxy
• Tidal capture formation of Low Mass X-Ray Binaries from wide binaries in the field
• Compact object binary mergers driven by cluster tides: a new channel for LIGO/Virgo gravitational wave events
• Levy Flights of Binary Orbits due to Impulsive Encounters

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• Formation and Evolution of Compact Object Binaries in AGN Disks
• One Channel to Rule Them All? Constraining the Origins of Binary Black Holes using Multiple Formation Pathways
• Implications of Eccentric Observations on Binary Black Hole Formation Channels
• Population synthesis of black hole binary mergers from star clusters
• Orbital evolution of binary black holes in active galactic nucleus disks: a disk channel for binary black hole mergers?
• The Science of the Einstein Telescope
• Black Hole Mergers from Hierarchical Triples in Dense Star Clusters
• Stellar triples on the edge; Comprehensive overview of the evolution of destabilised triples leading to stellar and binary exotica
• High rate of gravitational waves mergers from flyby perturbations of wide black-hole triples in the field
• Chaotic dynamics of wide triples induced by galactic tides: a novel channel for producing compact binaries, mergers, and collisions
• Dynamics of binary black holes in low-mass young star clusters
• Was GW190412 born from a hierarchical 3+1 quadruple configuration?
• On Socially Distant Neighbors: Using Binaries to Constrain the Density of Objects in the Galactic Center
• Spin misalignment of black hole binaries from young star clusters: implications for the origin of gravitational waves events
• Return of the TEDI: revisiting the Triple Evolution Dynamical Instability channel in triple stars
• Resolving the eccentricity of stellar mass binary black holes with next generation ground-based gravitational wave detectors
• Close Encounters of Wide Binaries Induced by the Galactic Tide: Implications for Stellar Mergers and Gravitational-Wave Sources
• Population III star formation in an X-ray background: III. Periodic radiative feedback and luminosity induced by elliptical orbits
• Binary black holes mergers from hierarchical triples in open clusters
• Gravitational waves from mergers of Population III binary black holes: roles played by two evolution channels
• Structure formation with primordial black holes: collisional dynamics, binaries, and gravitational waves
• Type Ia Supernovae from wide white-dwarfs triples
• A Triple Scenario for the Formation of Wide Black Hole Binaries Such As Gaia BH1
• Ultra wide black-hole - neutron star binaries as a possible source for gravitational waves and short gamma ray bursts
• Uncovering a hidden black hole binary from secular eccentricity variations of a tertiary star
• Exploring field-evolution and dynamical-capture coalescing binary black holes in GWTC-3
• White dwarf - main sequence star collisions from wide triples in the field
• Orbital Eccentricity and Spin-Orbit Misalignment Are Evidence that Neutron Star-Black Hole Mergers Form through Triple Star Evolution
• Merger rate density of stellar-mass binary black holes from young massive clusters, open clusters, and isolated binaries: comparisons with LIGO-Virgo-KAGRA results
• Constraining hierarchical mergers of binary black holes detectable with LIGO-Virgo
• Parametrized tests of general relativity using eccentric compact binaries
• Cataclysmic Variables in Triples: Formation Models and New Discoveries
• Distinguishing the Origin of Eccentric Black Hole Mergers with Gravitational-wave Spin Measurements
• Extreme resonant eccentricity excitation of stars around merging black-hole binary
• The Nature of Gravitational Wave Events with Host Environment Escape Velocities
• Signatures of Hierarchical Mergers in Black Hole Spin and Mass distribution
• Detailed properties of gravitational-wave mergers from flyby perturbations of wide binary black holes in the field