Fig. 1

A representative anomalous spectrum of our selected fields (taken from Model 4 of Miville-Deschênes et al. 2008). The solid line is the fit with our model (Ysard & Verstraete 2010) comprising contributions from the CNM (10%, dotted line) and from the WNM (90%, dashed line). PAH parameters, see text of Ysard et al. (2010), are m = 0.3 D, and Nmin = 24 and 48 (CNM and WNM, respectively).
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