Emission line profiles of the ionised gas obtained from an integrated spectrum (circular aperture with R ∼ 0.5″) in the nuclear region (middle), NE (left), and SW (right) parts of the cone (see Fig. 1). All the velocities refer to the systemic value computed with z = 0.00868 (see Sect. 1) indicated by the dashed, vertical grey lines. Fluxes were normalised to the maximum of each line.