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Fig. 5

image

Comparison between 22 μm WISE and 25 μm IRAS luminosities for the CALIFA mother sample. Blue and red points correspond to high and moderate quality IRAS 25 μm data, respectively. Arrows represent upper limits for the same IRAS band. The solid line shows a linear 1:1 relation for reference. The average ratio between 25 μm and 22 μm luminosities is 1.05 ± 0.22 when using high quality 25 μm IRAS measurements. This tight relation allows us to use them interchangeably using the previous conversion factor.

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