  The astrophysical origin of the over 90 compact binary mergers discovered by
the LIGO and Virgo gravitational wave observatories is an open question. While
the unusual mass and spin of some of the discovered objects constrain
progenitor scenarios, the observed mergers are consistent with multiple
interpretations. A promising approach to solve this question is to consider the
observed distributions of binary properties and compare them to expectations
from different origin scenarios. Here we describe a new hierarchical population
analysis framework to assess the relative contribution of different formation
channels simultaneously. For this study we considered binary formation in AGN
disks along with phenomenological models, but the same framework can be
extended to other models. We find that high-mass and high-mass-ratio binaries
appear more likely to have an AGN origin compared to the same origin as
lower-mass events. Future observations of high-mass black hole mergers could
further disentangle the AGN component from other channels.
