Fig. D.6.
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Comparison of the qW3PAH parameter with global spectral index. Error bars, in the spectral index determination, are displayed for each object. The dotted line at q = 2.34 corresponds to the value found by Yun et al. (2001), and the dotted line at α = −0.8 marks the classical value, which is adopted to show the predominance of non-thermal emission.
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