Fig. 4
The four monitored fields, showing the structures of the nebulae and the background stellar densities. From left to right: B68, Circinus, cb131, and the SMC. Up: images from the ESO-DSS2 in R. Down: our corresponding template images (in Ks for B68, cb131 and Circinus, in J for SMC). North is up and East is left. The circles on the B68 images show the position of our selected candidate.
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