Colour figures constructed from continuum-subtracted [Fe ii] 1.644  μm (blue), H₂ 2.122 μm (green) and Brγ 2.166 μm (red) images. The three images in each panel are scaled between the 10th and 95th percentile (consequently, regions where each line peaks tend to appear white). Contours of the continuum emission at 2.16 μm (i.e. adjacent to Brγ) are over-plotted at 50%, 75% and 90% the peak flux. Offsets are arbitrary and are in pixels. The horizontal axis in each panel is aligned with the nominal flow direction (listed in Table 1).