Fig. 3.
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Left panel: qPAH parameter of Draine & Li (2007) obtained with CIGALE (Noll et al. 2009) using the full photometric coverage (ordinate) or removing WISE data (abscissa). Solid lines show a linear correlation between the two quantities and the black cross in the bottom right corner shows the average errors in the fit. Right panel: histograms of qPAH from the full photometric coverage (red dashed line) or removing WISE data (black solid line).
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