Observed (blue points) and modelled outflow velocity profiles for all ten galaxies. In each galaxy, all velocities are normalised to the mean observed outflow velocity in the central kiloparsec or within the modelled bulge radius, whichever is lower. Panels are arranged approximately from best to worst match. The black line and shaded region correspond to the M_bulge taken from the observed M_BH − M_bulge relation and its ±0.68 dex scatter (Schutte et al. 2019) when the value of f_g is chosen to fit the velocity in the central region. The dashed red line is the result of choosing both f_g and the value of M_bulge to produce the best fit to the observed outflow profile. The vertical dotted red line shows the bulge radius given by the best-fit value of M_bulge, which is also the point where the outflow begins to accelerate.