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Dynamical pairing in gravitational wave populations
Fabio Antonini, Aleksandra Olejak, Isobel Romero-Shaw +1
Binary black holes formed dynamically in star clusters are often associated with nearly equal-mass pairing. We show that this expectation is incomplete. The more general prediction…
Distinct spin properties and astrophysical origin of low mass binary black holes in gravitational wave data
Elizabeth Flanagan, Jakob Stegmann, Isobel Romero-Shaw +3
We analyze the effective-spin distribution of binary black hole mergers in GWTC-5.0 as a function of primary black hole mass using hierarchical Bayesian inference. We model the pop…
Transitions in the Mass-ratio and Spin Properties of Binary Black Holes in GWTC-5
Elizabeth Flanagan, Fabio Antonini, Thomas Callister +4
We analyze the mass-ratio and effective-spin () distributions of binary black hole mergers in the latest gravitational-wave catalog, GWTC-5, as a function of primary m…
A universal framework to identify eccentric binary mergers: GW200105 case study
Teagan A. Clarke, Isobel M. Romero-Shaw, Charlie Hoy +3
Orbital eccentricity in gravitational-wave signals from merging compact object binaries is a powerful indicator of their formation channel. Several binary black hole mergers and a…
Eccentricity Distribution for Dynamical Gravitational-Wave Merger Channels in The Pinhole Regime
Mor Rozner, Teagan A. Clarke, Isobel M. Romero-Shaw +1
We argue that various dynamical astrophysical black hole merger channels are expected to result in a common eccentricity distribution at gravitational-wave (GW) frequencies relevan…
The Shape of Eccentricity: Rapid Classification of Eccentric Binaries with the Wavelet Scattering Transform
Priscilla Canizares, Seppe J. Staelens, Isobel Romero-Shaw
The gravitational-wave (GW) detections reported by the LIGO-Virgo-KAGRA (LVK) collaboration have so far been consistent with quasi-circular compact binary coalescences (CBCs). Neve…