Fig. 2

LFIR/MBB as a function of metallicity for DGS (crosses) and KINGFISH (downward triangles). The colours code the temperature, T (Rémy-Ruyer et al. 2013). The best power-law fit line is indicated as a black line and corresponds to log(LFIR/MBB) = (31.0 ± 0.9) + (−30.5 ± 0.9) × log(12 + log(O/H)). The distribution of LFIR/MBB is indicated on the side for both samples: solid line for DGS and dashed line for KINGFISH. The errors on the metallicities are omitted for clarity. They are about 0.1 dex on average. This figure replaces Fig. 14 (bottom panel) in Rémy-Ruyer et al. (2013).
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