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Fig. 1

Images of SDC324.633+0.779. From left to right: Spitzer 8 μm image with the τ8 μm = 0.35 opacity contour showing the boundary of the SDC as defined in PF09; Herschel H2 column density map with background; Herschel background filtered H2 column density map; Herschel dust temperature map.
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