Brightness temperature T_b (in K) as measured from the 8.44 GHz maps, versus brightness temperature from Condon et al. (1991). Not all of our objects have a measurement in Condon et al. (1991), thus are omitted from the plot. Symbols: blue diamonds denote the common objects, filled blue diamonds denote objects classified as radio-AGN (see Table 4), and the black squares denote objects that are classified as mid-IR AGN based on Petric et al. (2011). The dotted line is the one-to-one relation. The relative mean dispersion is 2.5%.