Effects of a non‐universal <scp>IMF</scp> and binary parameter correlations on compact binary mergers

Binary population synthesis provides a direct way of studying the effects different choices binary evolution models and initial parameter distributions on present-day compact merger populations, which can then be compared to empirical properties such as observed rates. Samples zero-age main sequence binaries evolved by codes are typically generated from an universal IMF simple, uniform, for orbital period $P$, mass ratio $q$ eccentricity $e$. More recently, however, mounting observational evidence has suggested non-universality existence correlations between parameters. In this study, we implement metallicity- redshift-dependent alongside correlated $e$ in order generate representative populations at varying redshifts, with COMPAS code study variations rates overall properties.