Fig. A.1

Dust opacity-law adopted for the work. The five lines show different plausible dust opacity models from Ossenkopf & Henning (1994) and Weingartner & Draine (2001). The symbols show the adopted dust opacities in NIR and 8 μm (cf., Kainulainen & Tan 2013) and in Herschel wavebands. The adopted values represent the mean values in the range set by the five shown models.
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