IRAS 32c (IRAS 18595-3712; Wilking et al. 1992) with Herschel column density contours plotted in blue. The lowest contour is 7 × 10²² N(H₂) cm⁻² and each sequential contour is 1.2 times higher than the previous one. The colour image is Spitzer 4.5-μm data showing a larger area coverage version of the same region of sky discussed and presented by Peterson et al. (2011, Fig. 15 and Appendix A.44). The Herschel column density contours form a “bay” of material to the north-east of the source. This appears to be showing the cavity that is swept out by a jet not visible within this figure. The dashed circle in the bottom left corner represents the ~ 18″ Herschel resolution of the column density map.