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Astrophysical Implications of Eccentricity in Gravitational Waves from Neutron Star-Black Hole Binaries
Isobel Romero-Shaw, Jakob Stegmann, Gonzalo Morras +2
The gravitational-wave signal from the neutron star-black hole (NSBH) merger GW200105 is consistent with this binary having significant orbital eccentricity close to merger. This r…
Exploring the astrophysical origins of binary black holes using normalising flows
Storm Colloms, Christopher P L Berry, John Veitch +1
The growing number of gravitational-wave detections from binary black holes enables increasingly precise measurements of their population properties. The observed population is mos…
Compact Binary Coalescence Sensitivity Estimates with Injection Campaigns during the LIGO-Virgo-KAGRA Collaborations' Fourth Observing Run
Reed Essick, Michael W. Coughlin, Michael Zevin +21
We describe the effort to characterize gravitational-wave searches and detector sensitivity to different types of compact binary coalescences during the LIGO-Virgo-KAGRA Collaborat…
Hierarchical Triples vs. Globular Clusters: Binary black hole merger eccentricity distributions compete and evolve with redshift
Andris Dorozsmai, Isobel M. Romero-Shaw, Aditya Vijaykumar +5
The formation mechanisms of merging binary black holes (BBHs) observed by the LIGO-Virgo-KAGRA collaboration remain uncertain. Detectable eccentricity provides a powerful diagnosti…
Characterizing Compact-object Binaries in the Lower Mass Gap with Gravitational Waves
Jessica Cotturone, Michael Zevin, Sylvia Biscoveanu
The source binary of the gravitational-wave (GW) event GW230529, detected at the beginning of the fourth LIGO-Virgo-KAGRA observing run, was inferred to consist of a NS and a compa…
Exploring the evolution of gravitational-wave emitters with efficient emulation: Constraining the origins of binary black holes using normalising flows
Storm Colloms, Christopher P L Berry, John Veitch +1
Binary population synthesis simulations allow detailed modelling of gravitational-wave sources from a variety of formation channels. These population models can be compared to the…