WISE colour-colour diagram following Cluver et al. (2017). Early-type galaxies with low SFRs are located at the bottom left (W2 − W3 < 2), and star-forming discs are expected to be on the right side (W2 − W3 > 3.5). Intermediate discs are likely to be found between these regions. Above W1 − W2 = 0.8, heating from dusty AGNs primarily influences the mid-infrared emission. Error bars are displayed for each object unless smaller than the symbol. The black line traces the star formation sequence defined by Jarrett et al. (2019). The galaxy represented with a black dot is not detected in our radio continuum images.