Overlay of the PdBI CH₃CN (12–11) emission averaged under the K = 0, 1, 2, and 3 components (contours) on the CH₃CN (12–11) line peak velocity obtained with a Gaussian fit (colors) towards the cores G10 (left), G19 (middle), and G29 (right). The color levels in km s^-1 are indicated in the wedge to the right of each panel. Contours for CH₃CN (12–11) are the same as in Fig. 1. The straight line indicates the direction of the molecular outflow (Keto & Wood 2006; this paper). The synthesized beam is shown in the lower lefthand corner.