Position-intensity diagram along two cuts. The positions of both cuts are indicated by the gray lines crossing the ionizing star (central position) in Fig. 2, negative distances are to the east and northeast. The upper panel shows the intensity along the horizontal line and the lower one the intensity along the diagonal cut (25°). The [C II] and ¹²CO and ¹³CO (3 →2) intensities are indicated by a blue, orange, and green curve, respectively.