2005/10/03 by Brian Punsly, Steven J. Tingay, Steven Tingay · 1 citation
Physics and Astronomy · #Accretion (finance) #Accretion disc #Active galactic nucleus #Astrophysical Phenomena and Observations #Astrophysics and Cosmic Phenomena #Galaxies: Formation, Evolution, Phenomena #Jet (fluid) #Kinetic energy #Luminosity #Quasar #Thermal #astro-ph
paper · pdf · doi:10.1086/498429
published as Astrophys.J.633:L89-L92,2005 · To appear in ApJ Letters
arxiv created 2005/10/03 · openalex publication_date 2005/10/31 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
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 × 10 46 ergs s -1 . This result is significant because archival optical spectral data indicate that the accretion disk has a thermal luminosity L bol > 2 × 10 47 ergs s -1 . 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 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 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 bol in the subsample.