Same as Fig. 3, but for the the velocity range (+0.5, +1.2) km s^-1. Starting contours and spacing of the NH₃ (1, 1) line (yellow) are 0.6 K km s^-1 and 0.2 K km s^-1, respectively. For the NH₃ (2, 2) line, the starting contours and spacing (blue) are 0.09 and 0.03 K km s^-1, respectively. At this velocity range, the ammonia emission is particularly intense towards the SW region (e.g., within the white square), in coincidence with the most prominent CO emission. Another outstanding feature is the (2, 2) spot around (0″, −40″), which has no (1, 1) counterpart.