SIMBAD references

Deep radio observations of the quasar PKS 0743-67 are presented that reveal a central engine capable of driving jets with enormous kinetic luminosity, Q>4.1x10⁴⁶ ergs/s. This result is significant because archival optical spectral data indicate that the accretion disk has a thermal luminosity L_bol>2x10⁴⁷ ergs/s. Furthermore, estimates of the mass of the central black hole from line widths indicate that L_bol/L_Edd~1. This suggests that neither a large L_bolnor L_bol/L_Edd suppresses jet power in quasars, despite claims that they do in the recent literature. Earlier studies have found L_boland Q to be correlated in blazars. However, by removing the BL Lac objects and leaving only the quasars in the sample, we found that Q is very weakly correlated with L_bolin the subsample.