Left: moment0 map of the emission in the channel maps shown in Fig. 6. Contours are drawn at 3, 6, 12, 24, 48, and 96 times the rms noise value in the spectral region of the bandpass without detectable line emission (σ_rms = 1.5 × 10⁻³ Jy beam⁻¹). The continuum peak position is indicated by the yellow star symbol. Right: moment1 map of the same emission. Contours are drawn at ±1, ±3, ±6 and ±9 km s⁻¹. The zero-velocity strip separating the blue- and red- shifted emission inside the small central yellow circle has a different PA than that of the zero-velocity strip separating the blue- and red- shifted emission CO emission (see Fig. A.5).