¹²CO J = 3−2 (ALMA B7) synthetic channel intensity maps for a CS Cha companion model. The grey cross indicates the location of the PMC. The white ellipse in each panel shows the beam with a size of 0.11′′ × 0.09′′. In the top right corner of each panel the velocity relative to the systemic velocity is indicated. The grey and black contours show 3 and 5 times the theoretical rms level of 0.65 mJy beam⁻¹ (see Table C.1). The measured rms levels in the shown channels are approximately in the range 0.49 − 0.76 mJy beam⁻¹. The measured peak flux is about 4.8 mJy beam⁻¹.