Fig. 2
9 × 9 arcmin2 H2 column density maps computed from Herschel/SPIRE data. The red and black contours represent 90 and 50% of the integrated intensity peak of CH3OH and c-C3H2, respectively. The white circle in the bottom left of each panel shows the 40′′ beam of the SPIRE data. The dotted white arrows (not present for L429) indicate the directions in which the abundances profiles discussed in Sect. 4 were extracted.
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