Fig. 9
Top: radio emission at 5.5 GHz showing a jet-like source. Bottom: the same region at the 8 μm-IRAC band. Surrounding the jet-like source appears a closely circular ring of emission. The symbols represent the positions of known YSO candidates (crosses) and the Westerlund 2 stars MSP#18, MSP#188 (open squares), and WR 20a (circle).
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