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Fig. 16.

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W1 − W2 versus W2 − W3 colour-colour diagram based on the WISE magnitudes at 3.4 μm, 4.6 μm, and 12 μm. The red dots are the data points for the galaxies in our sample. The dashed black line shows the W1 − W2 > 0.8 criterion proposed by Stern et al. (2012).

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