Abstract

We present results on the mass, spin, and redshift distributions of the ten binary black hole mergers detected in the first and second observing runs completed by Advanced LIGO and Advanced Virgo. We constrain properties of the binary black hole (BBH) mass spectrum using models with a range of parameterizations of the BBH mass and spin distributions. We find that the mass distribution of the more massive black hole in such binaries is well approximated by models with no more than 1% of black holes more massive than $45 M{}_{\\odot}$, and a power law index of $\\alpha = {{1.6}^{+1.5}_{-1.7}}$ (90% credibility). We also show that BBHs are unlikely to be composed of black holes with large spins aligned to the…

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Topics & keywords

Topics

Keywords

Binary black hole
Physics
LIGO
Astrophysics
Redshift
Black hole (networking)
Population
Astronomy

UN Sustainable Development Goals

Peace, Justice and strong institutions

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