Left: residuals after subtraction of the stellar velocity field from the molecular gas (H₂(1–0)S(1)) velocity field. The black solid and dashed lines show the line of nodes and the zero-velocity line of the stellar LOSV model, respectively. The black box indicates the central 1″, where Combes et al. (2019) report a torus with a radius of 21 pc ∼ 0.3″ in the centre using the CO(3–2) emission. Right: map of HST F814W to compare the residual velocities with dust lanes, with which inflowing motions are often associated. North is up and east is to the left.