Broad line and multi-wave luminosity relations in Fermi FSRQs

• Published in: Astrophysics and space science Vol. 345; no. 2; pp. 345 - 354
• Main Authors: Xiong, D. R., Zhang, H. J., Zhang, X., Zheng, Y. G., Yi, T. F., Liu, W. G., Cha, Y. J., Li, B. J.
• Format: Journal Article
• Language: English
• Published: Dordrecht Springer Netherlands 01-06-2013; Springer Nature B.V
• Subjects: Accretion; Accretion disks; Astrobiology; Astronomy; Astrophysics; Astrophysics and Astroparticles; Cosmology; Luminosity; Observations and Techniques; Original Article; Physics; Physics and Astronomy; Quasars; Space Exploration and Astronautics; Space Sciences (including Extraterrestrial Physics; Stars & galaxies; Galaxies: accretion disks; Galaxies: active; Galaxies: jets; Quasars: emission lines
• ISSN: 0004-640X; 1572-946X
• DOI: 10.1007/s10509-013-1394-5

We study broad line and multi-wave luminosity relations for 80 flat-spectrum radio quasars (FSRQs) detected by Fermi LAT. Our results are as follows: for FSRQs, the correlations between log
L
γ
and log
L
BLR
, between log
L
X
and log
L
BLR
, between log
L
O
and log
L
BLR
, between log
L
R
and log
L
BLR
are significant; the correlation between log
L
IR
and log
L
BLR
(
P
=0.08) is not significant, but might be refereed as a “trend” of significant correlation. These results support a close link between jet formation and accretion disk, and the
L
γ
-
L
BLR
correlation suggests that the radiation mechanism of the
γ
-ray emission in FSRQs is likely to be inverse Compton scattering of seed photons from BLR or outflowing BLR.