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Regression on Regression: Mapping Data-Driven Binary Black Hole Merger Rate Fits to Progenitor Histories
Emma Blanchet, Aryanna Schiebelbein-Zwack, Maya Fishbach
The binary black hole (BBH) merger rate is governed by the progenitor formation rate and the distribution of delay-times between formation and merger, but these functions remain po…
Forbidden Formation Histories: The Binary Black Hole Merger Rate Disfavors Long Delay Times
Aryanna Schiebelbein-Zwack, Maya Fishbach
The redshift evolution of the binary black hole (BBH) merger rate can be expressed as the convolution of the progenitor formation rate with the distribution of time delays between…
Implications of low neutron star merger rates for gamma-ray bursts, r-process production and Galactic double neutron stars
Maya Fishbach, Alexander P. Ji, Wen-fai Fong +4
The first multimessenger discovery of a binary neutron star (BNS) merger, GW170817, proved that such mergers can source short gamma-ray bursts (SGRBs) and produce r-process element…
The maximum mass ratio of hierarchical binary black hole mergers may cause the - correlation
Aditya Vijaykumar, Amanda M. Farah, Maya Fishbach
Regardless of their initial spins, the merger of two roughly equal mass black holes (BHs) produces a remnant BH of dimensionless spin . Such remnants can merge with other BHs…
The steep redshift evolution of the hierarchical binary black hole merger rate may cause the - correlation
Amanda M. Farah, Aditya Vijaykumar, Maya Fishbach
There is growing evidence from gravitational-wave observations that some merging black holes are created from previous mergers. Using the prediction that these hierarchically merge…
A subpopulation of low-mass, spinning black holes: signatures of dynamical assembly
Hui Tong, Thomas A. Callister, Maya Fishbach +5
Gravitational-wave observations of massive, rapidly spinning binary black holes mergers provide increasing evidence for the dynamical origin of some mergers. Previous studies have…