PKS 0743−67: An Ultra-luminous Accretion Disk and a High Kinetic Luminosity Jet

In this letter, 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 > 4.1 × 10ergs/s. This result is significant because archival optical spectral data indicates that the accretion disk has a thermal luminosity, Lbol > 2×10 ergs/s. Furthermore, estimates of the central black hole mass from line widths indicate that Lbol/LEdd ≈ 1. This suggests that neither a large Lbol nor Lbol/LEdd suppresses jet power in quasars, despite claims that they do in the recent literature. Earlier studies have found Lbol and Q are correlated in blazars. However, by removing the BL-Lacs and leaving only the quasars in the sample, we found that Q is very weakly correlated with Lbol in the subsample. Subject headings: quasars: general — quasars: individual (PKS 0743−67) — galaxies: jets — galaxies: active — accretion disks — black holes