a) First-order moment map (velocity) for the hyperfine F₁F = 01 → 12 line of N₂H⁺ (1–0) toward AFGL 5142 (color scale); b) second-order moment map (velocity dispersion) for the hyperfine F₁F = 01 → 12 line of N₂H⁺ (1-0) (color scale). In both figures, black contours are the same as in Fig. 4a, showing the N₂H⁺ (1–0) emission, with contours starting at 3%, and increasing in steps of 10% of the peak intensity. Color scales are in km s^-1. The synthesized beam is shown in the bottom right corner of the image. The black cross marks the position of the 3.2 mm source reported in this work. Blue and red lines represent the direction of outflows A, B, and C (Zhang et al. 2007), and the black dashed line in the top panel indicates the position-velocity cuts (see Fig. 6). The second-order moment gives the velocity dispersion and must be multiplied by the factor 2 to convert to FWHM.