Volumetric merger rates as a function of redshift. The cosmic SFH history of Langer & Norman (2006) is adopted. Also shown is the core-collapse supernova rate. The shaded grey region on the left indicates the range of possible BNS merger rates in the local Universe (z = 0), constrained solely from LIGO/VIRGO/KAGRA gravitational wave observations (Abbott et al. 2023). Short GRB volumetric rate estimates are consistent with this (Salafia et al. 2023). In addition to the rolling average of the WDNS, WDBH, and BWD rates (see text), the unaveraged rates are shown in paler shades. The dash-dotted red line is the derived intrinsic rate of LGRBs from Ghirlanda & Salvaterra (2022).