Black-hole mergers in disklike environments could explain the observed $q$-${\chi }_{\mathrm{eff}}$ correlation

Alessandro Santini, Davide Gerosa, Roberto Cotesta +1

Current gravitational-wave data from stellar-mass black-hole binary mergers suggest a correlation between the binary mass ratio $q$ and the effective spin ${\chi }_{\mathrm{eff}}$: more un…