Overlay of velocity gradient (V_g) vectors and dendrogram leaves on the N₂H⁺(1–0) peak intensity map. The arrowheads point to local blueshifted velocity material. The reference V_g vector and ALMA beam are shown in the lower-left corner. The cyan contour presents the N₂H⁺ emission at a level of 0.2 Jy beam⁻¹ km s⁻¹. Two circular regions, radii ∼12″ (∼0.17 pc) and 22″ (∼0.3 pc), typically mark the boundaries of the hub and G11P1-HFS (see text and Fig. 4).