Zoom-in on the area of the continuum disk in Figs. 2a,b for ¹²CO. Labels 1–4 refer to the features defined in Sect. 4. Top panel: blueshifted, v_lsr  =   − 1.2 − +3.6 km s⁻¹ (color; black below 1.6 km s⁻¹). Thin yellow contours are plotted for a few arbitrary velocity levels for visualization. The thick yellow outline marks the approximate area of the high-velocity wind. Bottom panel: redshifted, v_lsr = 7.0 − 10.1 km s⁻¹. Thin black contours are overplotted for a few arbitrary velocity levels. Beam size: × .