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Merging stellar-mass binary black holes
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The LIGO and Virgo detectors have directly observed gravitational waves from mergers of pairs of stellar-mass black holes, along with a smaller number of mergers involving neutron stars. These observations raise the hope that compact object mergers could be used as a probe of stellar and binary evolution, and perhaps of stellar dynamics. This colloquium-style article summarises the existing observations, describes theoretical predictions for formation channels of merging stellar-mass black-hole binaries along with their rates and observable properties, and presents some prospects for gravitational-wave astronomy.
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Cited by 32 Pith papers
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Highly eccentric non-spinning binary black hole mergers: quadrupolar post-merger waveforms
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Signatures of a subpopulation of hierarchical mergers in the GWTC-4 gravitational-wave dataset
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Aligned Hierarchical Black Hole Mergers in Active-Galactic-Nuclei Disks Revealed by GWTC-4
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Evidence for eccentricity in the population of binary black holes observed by LIGO-Virgo-KAGRA
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Targeting black holes from metal-poor progenitors with next-generation gravitational-wave detectors
Introduces a target redshift z_t to isolate metal-poor black hole progenitors and a statistical framework to test merger-rate variations against forecasts from Einstein Telescope and Cosmic Explorer.
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Constraints on primordial black holes from the first part of LIGO-Virgo-KAGRA fourth observing run
LIGO-Virgo-KAGRA O4a data yields the strongest constraints on primordial black hole abundance for 0.6-100 solar masses, with resolvable mergers dominating the limits and no compelling evidence for a PBH contribution i...
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Assessing the imprint of eccentricity in GW signatures using two independent waveform models
Dual-model analysis of 162 GW sources disfavors eccentricity for most events but finds potential evidence in GW200129, GW231001, and GW231123.
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The Hierarchical Merger Scenario for GW231123
GW231123 is claimed to be a 2G+2G hierarchical merger, but only under the NRSur7dq4 waveform; the conclusion flips with IMRPhenomXO4a.
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Evidence for additional structure in the effective spin distribution hints at multiple formation pathways in GWTC-5.0
GWTC-5.0 analysis finds evidence for structure beyond a non-skewed Gaussian bulk in χ_eff, with suggestive mass-dependent excess of positive over negative spins outside the bulk at 13:1 odds in one mass bin.
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Binary Black Hole Phase Space Discovers the Signature of Pair Instability Supernovae Mass Gap
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Gravitational Waves from Black Holes in Merging Ultra-Dwarf Galaxies
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Waveform Modelling for the Laser Interferometer Space Antenna
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The first decade of gravitational-wave measurements of black hole spins
A decade of gravitational-wave data shows most merging stellar-mass black holes have small spins, with subdominant fast-spinning, misaligned, and hierarchical-merger populations.
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The first decade of gravitational-wave measurements of black hole spins
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