Resulting velocity groups for the N₂H⁺ and HC₃N emission after the clustering process. The left plots show the υ_LSR of the redshifted fiber, and the right plots show the same for the blueshifted fiber. The blue contour marks the area occupied by the blueshifted fiber, and the red contour shows the redshifted fiber. The black symbols represent protostellar objects in the region, as in Fig. 1. The black ellipse in the bottom left corner of both plots represents the beam size. The black lines represent the velocity gradient directions measured at each position, and their size represents the gradient magnitude. The red circle in the top right corner of the left plot shows the size of the sampled area based on which we calculated the gradients. The panels have different spatial scales. Top: N₂H⁺ emission υ_LSR for each of the clusters. Bottom: HC₃N emission υ_LSR after the clusters are grouped according to their velocities with respect to the N₂H⁺ clusters.