Velocity analysis based on the CH₃OCH₃ transition at 258.549 GHz. Left: the contours for the velocity field indicate the continuum intensity levels from the high spatial resolution observations of Alves et al. (2019). The compact emission contours arise from the circumstellar disks around each protostar of the binary system, 11A (northern component) and 11B (southern component). The dashed line shows the direction of the cut used to produce the PV diagram displayed in Fig. 4 centred on a position in between the two cores. The cut position angle is 140° and its width is 0.5″, encompassing both protostars. Right: PV diagram obtained from the CH₃OCH₃ emission at 258.549 GHz. The direction of the cut (PA) and its width used to produce the PV diagram is shown on the left side of the figure as a grey dashed line. The three velocity components observed in the methanol spectra are also indicated (Vastel et al. 2022).