Dingrong Xiong

The jets-accretion relation, mass-luminosity relation in Fermi blazars

A sample of 111 Fermi blazars each with a well-established radio core luminosity, broad-line luminosity, bolometric luminosity and black hole mass has been compiled from the literatures. We present a significant correlation between radio core and broad-line emission luminosities that supports a close link between accretion processes and relativistic jets. Analysis reveals a relationship of

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

\mathrm{Log}\mathrm{L}_{\mathrm{BLR}}\sim(0.81\pm0.06)\mathrm{Log} \mathrm{L}_{\mathrm{R}}^{\mathrm{C}}

Fermi gamma-ray and multi-wave band emission from TeV active galactic nuclei

which is consistant with theoretical predicted coefficient and supports that blazar jets are powered by energy extraction from a rapidly spinning Kerr black hole through the magnetic field provided by the accretion disk. Through studying the correlation between the intrinsic bolometric luminosity and the black hole mass, we find a relationship of

Correlation between X-ray and γ-ray for Fermi blazars

\mathrm{Log}\frac{\mathrm{L}_{\mathrm{in}}}{\mathrm{L}_{\odot}}=(0.95\pm0.26)\mathrm{Log} \frac{\mathrm{M}}{\mathrm{M}_{\odot}}+(3.53\pm2.24)

Core-dominance parameter and polarization for Fermi blazars

which supports mass-luminosity relation for Fermi blazars derived in this work is a powerlaw relation similar to that for main-sequence stars. Finally, EVOLUTIONARY SEQUENCE OF BLAZARS is discussed.

Broad line and multi-wave luminosity relations in Fermi FSRQs

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 follows: (i) We found that the FSRQs are roughly separated from BL Lacs by the Ledlow–Owen FRI/FRII dividing line in the logPjet–logM 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 logLBLR–logPjet 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.