18 papers
High-mass binary black hole mergers from detailed binary evolution models
Max M. Briel, Olcay Bıyıklı, Tassos Fragos +10
The paper uses detailed binary evolution simulations to test whether super‑Eddington mass transfer in isolated binaries can produce the observed high‑mass binary black hole mergers…
Signatures of a subpopulation of hierarchical mergers in the GWTC-4 gravitational-wave dataset
Cailin Plunkett, Thomas Callister, Michael Zevin +1
Repeated black-hole mergers in dense stellar clusters are a plausible mechanism to populate the predicted gap in black hole masses due to the pair-instability supernova process. Th…
On the Astrophysical Origin of Binary Black Hole Subpopulations: A Tale of Three Channels?
Anarya Ray, Shirsha Mukherjee, Michael Zevin +1
There is increasing evidence for multiple binary black hole~(BBH) subpopulations in the cumulative gravitational wave catalog by the LIGO-Virgo-KAGRA Collaboration. The astrophysic…
Twin Peaks: Resolving Features in the Binary Black Hole Mass Function with COSMIC-METISSE
Duncan B. Maclean, Poojan Agrawal, Katelyn Breivik +5
Gravitational waves from inspiraling binary black holes (BBHs) provide insights into the lives and deaths of massive stars. Population synthesis allows us to model these binaries t…
Red vs. Blue: How metallicity shapes black hole dynamics and mergers in dense star clusters
Saloni Agrawal, Kyle Kremer, Michael Zevin +6
Dense star clusters are a well-established environment for the formation of gravitational wave sources through dynamical interactions. Recent LIGO-Virgo-KAGRA (LVK) events such as…
A case for Case A: detailed look at binary black hole formation through stable mass transfer
Max M. Briel, Tassos Fragos, Monica Gallegos-Garcia +8
In isolated binary evolution, binary black hole (BBH) mergers are generally formed through stable mass transfer (SMT) or common envelope evolution. In recent years, the SMT channel…