Left column panels: integrated intensity maps over the whole surveyed area for the (1 →0) transition lines of the ¹³CO, C¹⁸O, HNC and N₂H⁺ molecules. Middle column: velocity centroid. Right column panels: linewidth. The maps were produced by computing the zero-order (left), first-order (middle) and second-order (right) moments in the velocity range defined in Fig. 2. The yellow labels and the dotted lines indicate the main features identified in the region. The red star at (0′′,0′′) offset gives the position of IRS 1.