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Fig. 3


Composite image (24, 100, and 160 μm) of the HD 176386/TY CrA region, with the LABOCA 870 μm contours (at 0.1, 0.2, 0.25, 0.4, and 0.7 Jy) marked in green, the 100 μm contours in black (at 0.4, 0.6, 0.8, and 1.0 Jy), and the positions of the sources as white stars. The 24 μm data trace the cavities cleared by the two massive stars. The 870 μm data reveal that the peak of the submm emission (and thus the expected higher mass column density) is located around HD 176386, but the star itself is not affected by high extinction. The Herschel data reveals a peak in the zone between the two mid-IR illuminated cavities, which could indicate the formation of condensations. To the south, some details of another submillimeter emission region that lacks far-IR sources can also be appreciated.

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