Observed N₂D⁺(2 – 1) (left) and pNH₂D (right) spectra in black toward the central position of the map. The best fit obtained with p y speckit is shown in red. The blue profiles are the best fits for all the hyperfines. The results of the fit are indicated in the top right corner of each plot, with T_ex the excitation temperature in K, τ the optical depth, V the velocity in km/s, and σ_v,obs the velocity dispersion in km/s.