144 MHz radio luminosity as a function of absolute rest-frame UV magnitude at 1450 Å determined by SED fitting with EAZY. The upper axis indicates the corresponding black hole masses based on the empirical relation given in Eq. (1). The errors in M₁₄₅₀ are given by the 16th and 84th percentile on the M₁₄₅₀ distribution determined by randomly varying the measured fluxes within the error and refitting the SED.