Velocity integrated maps of [C II] and CO (3 →2) emission in RCW 120 between − 20 and 10 km s^-1. Left panel: line integrated [C II] intensity map. The contours outline the regions extracted with a dendrogram based approach (Rosolowsky et al. 2008; Robitaille et al. 2019), explained in Sect. 4.1. Middle and right panel: line integrated ¹²CO (3 →2) and ¹³CO (3 →2) intensity maps, respectively. The contours give the line integrated [C II] intensity levels 60, 100, 140, 180, 220 K km s^-1, ranging from black to light gray. The two gray lines indicate cuts displaying the line intensities in Fig. 3. The diagonal line has an angle of 25° with respectto the horizontal line. The exciting O6-8V/III type star CD-38 11636 is marked with a star symbol.