Combined RGB plot in [C II] and CO channel map of RCW79. Each panel displays the distinct velocity ranges (blue and red for the high-velocity blue- and redshifted emission, green for the bulk emission) of [C II] as an RGB plot with contours (3–25.4 K km s^–1 by 3.2 K km s^–1 ) of ¹²CO(3–2) emission overlaid. The corresponding CO velocity is given in the upper-right corner. In the first panel, the expanding [C II] bubble is approximated by a dotted circle. The exciting star cluster is indicated with a yellow star. Examples of high-velocity blue- and redshifted [C II] gas not associated with the expanding bubble are indicated with cyan and red arrows, respectively.