Gas velocity field (left panel) and velocity dispersion map (right panel) derived from the ten emission lines (Sect. 2) in our MUSE data set. The insets show an enlarged version of the innermost . Colour scale and units are indicated above each panel. Following Zhao et al. (2016), the zero velocity corresponds to a heliocentric recession velocity of v_helio = 4799 km s⁻¹. The crosses indicate the centre of coordinates. Axis labels and orientation are as in Fig. 1.