Correlating the SFR with the WISE mid-IR luminosity. The global SFR _IR is derived from the MIPS 24 μm luminosity and the Rieke et al. (2009) calibration. Left: the global SFR _IR as a function of the WISE 12 μm luminosity (filled circles) and the integrated 11.3 μm PAH luminosity (open circles). Right: the global SFR _IR as a function of the WISE 22 μm luminosity. A simple linear fit to the data is shown (dashed line). The galaxy name is indicated below the measurement, where single numbers represent the NGC #.