Distribution of “outflow clumps” and “non-outflow clumps” classified according to whether there is an outflow (Li et al. 2019) inside a given clump. Red contours denote ¹³CO-identified clumps that are classified as “outflow clumps,” while green contours show all other ¹³CO-identified clumps as “non-outflow clumps.” The gray background image, yellow stars and blue crosses are the same as in Fig. 15. The small black dots correspond to CO outflows identified by Li et al. (2019).