Top: difference of linear fit parameters compared to Delvecchio et al. (2021) depending on the limit applied to the TIR flux. The red and blue points show the normalisation and slope of the linear fit, respectively, for all galaxies with a TIR flux density to the right of the point. It can be seen that imposing increasingly strict cuts on the TIR flux density does not cause any significant bias in our results and does not explain the difference between our fit and that of Delvecchio et al. (2021) until the TIR flux cut starts to significantly cut into our radio-detected galaxies. Bottom: TIR flux density calculated by dividing the TIR luminosity by , against flux density at 150 MHz. The black points are galaxies that are detected at 150 MHz and the blue points are galaxies with an upper limit at 150 MHz. It can be seen that the limit at 150 MHz (∼100 μJy) has a greater effect on our sample than the limits of the TIR flux.