Jet/accretion and Unification for FSRQs/FRII and BL Lac objects/FRI radio galaxies

Abstract

We compiled a sample of 24 flat-spectrum radio quasars (FSRQs), 21 BL Lacs, 13 FRI and 12 FRII radio galaxies to study the jet power and broad-line luminosity relation, and the jet power and black hole mass relation. Furthermore, we obtain the histograms of key parameters. Our main results are as the follows:(i) We found that the FSRQs are roughly separated from BL Lacs by the Ledlow-Owen FRI/FRII dividing line in the $\log {\mathrm{P}}_{\mathrm{jet}}-\log \mathrm{M}$ plane. This result supports the unification model that BL Lacs unify with FRI radio galaxies and FSRQs unify with FRII radio galaxies.(ii)We found that the coefficient of the best-fit linear regression equation of $\log {\mathrm{L}}_{\mathrm{BLR}}-\log {\mathrm{P}}_{\mathrm{jet}}$ relation is very close to 1 for our sample. The correlation between broad line luminosity and jet power is significant which supports that jet power has a close link with accretion.

12pages,7figures,has been accepted for publication in Ap&SS. arXiv admin note: text overlap with arXiv:1012.0308 by other authors

References in corpus (3)

• The blazar sequence: a new perspective
• The jet-disc connection in AGN
• Cosmological Evolution of the Duty Cycle of Quasars

Cited by in corpus (1)

• Scale invariant jets: from blazars to microquasars