Illustration of the distribution along the LOS of all the stellar particles of the spatially selected NE shelf (see Figure 1) grouped into two numbered components by DBSCAN (upper panel: red and black points labelled in the legend). Grey points are stellar particles that are not linked to any group of particles according to the DBSCAN clustering algorithm. The entire spatial distribution of the modelled NE shelf stars along the LOS is compared to independent observations in Figure 15. Middle and lower panels: Same as Figure 6 but for the particles in the NE shelf region.