Resulting number of individual velocity components fit along each line of sight for N₂H⁺ (left) and HC₃N (right). The red symbols represent protostellar objects in the region as in Fig. 1. The gray regions correspond to pixels with S/N ≤ 2 or areas without data. The black semitransparent lines show the spines of the fibers in NH₃ (Chen et al. 2020b). The red ellipse in the bottom left corner of each plot represents the beam size.