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Fig. 2

Left: effective dust temperature map of FeSt 1-457, 36′′FWHM, with contours indicating temperatures of 20 K down to 14 K in steps of 1 K. Right: corresponding optical depth map, with contours indicating levels of 2, 3, 5, 7, 9, and 11 × 10-4. In both panels, the white box indicates the field of view of Fig. 1.
This figure is made of several images, please see below:
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