Line blending in the NH₃ (1, 1) (black; upper panel) and N₂H⁺ (1–0) (red; lower panel) spectra observed at the central position (x,y) = (0,0) of our maps. We notice how the presence of 2 overlapping velocity components is clearly resolved out in the N₂H⁺ isolated component (blue solid arrows) while it remains undistinguishable within the main hyperfine doublet of the NH₃ (1, 1) line (blue dashed lines).