Population properties of compact objects from the second LIGO-Virgo gravitational-wave transient catalog
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Abstract
We report on the population of the 47 compact binary mergers detected with a
false-alarm rate 1/yr in the second LIGO--Virgo Gravitational-Wave Transient
Catalog, GWTC-2. We observe several characteristics of the merging binary black
hole (BBH) population not discernible until now. First, we find that the
primary mass spectrum contains structure beyond a power-law with a sharp
high-mass cut-off; it is more consistent with a broken power law with a break
at
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2041-8213