Approximate temperature map, resulting from dividing the 100 μm by the 160 μm images. The known cluster members are marked as stars, and the LABOCA 870 μm contours at 0.1,0.2,0.4,0.8,1.6,3.2,6.4, and 12.8 Jy/beam are also displayed. The color gives an approximate idea of the temperature of the region, with red being the hottest (100 μm emission stronger than 160 μm emission) and violet denoting the coldest (160 μm emission stronger than the 100 μm emission). Protostars and disks tend to be hot (red), while the starless 870 μm regions are clearly colder than the rest of the cloud. The dashed-line box marks the region zoomed in in Fig. 10.
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