Article

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

10/2005; DOI:doi:10.1086/498429
Source: arXiv

ABSTRACT 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, $Q>4.1 \times 10^{46}\mathrm{ergs/s}$. This result is significant because archival optical spectral data indicates that the accretion disk has a thermal luminosity, $L_{bol}>2\times 10^{47}\mathrm{ergs/s}$. Furthermore, estimates of the central black hole mass from line widths indicate that $L_{bol}/L_{Edd}\approx 1$. This suggests that neither a large $L_{bol}$ nor $L_{bol}/L_{Edd}$ suppresses jet power in quasars, despite claims that they do in the recent literature. Earlier studies have found $L_{bol}$ 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 $L_{bol}$ in the subsample. Comment: To appear in ApJ Letters

0 0
·
0 Bookmarks
·
21 Views

Available from

### Keywords

accretion disk

ApJ Letters

archival optical spectral data

central black hole mass

central engine capable

enormous kinetic luminosity

quasars