Fig. 2

L183 cut. The 8 μm data have been smoothed to 18′′ resolution to match both the Herschel/SPIRE 250 μm and APEX/LABOCA 870 μm common resolution. The 8 μm absorption cut is converted to relative extinction (see text). The grey filling represents the possible range of 8 μm ratio between main and northern peaks. All curves are aligned at the saddle point (at +2′33′′ offset).
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