Title of article :
PKS 0743-67: An Ultraluminous Accretion Disk and a High Kinetic Luminosity Jet
Author/Authors :
Brian Punsly، نويسنده , , Steven J. Tingay، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی 2 سال 2005
Pages :
-88
From page :
89
To page :
0
Abstract :
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 Lbol > 2 * 10^47 ergs s^-1. Furthermore, estimates of the mass of the central black hole 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 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 Lbol in the subsample.
Keywords :
galaxies: active , quasars , jets , general , individual (PKS 0743-67) , accretion , accretion disks , black hole physics
Journal title :
Astrophysical Journal
Serial Year :
2005
Journal title :
Astrophysical Journal
Record number :
74175
Link To Document :
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