4 papers
The FeII Optical Emission in AGN
C. Bongardo, R. Zamanov, P. Marziani +2
We investigated the optical FeII emission in a sample of about 215 low-redshift AGN (quasars and luminous Seyfert 1 galaxies). We find that a scaled and broadened FeII template bas…
The Broad Line Region in Active Galactic Nuclei
D. Dultzin-Hacyan, P. Marziani, J. W. Sulentic
We review constraints on models of the broad line region that are imposed by observations of the emission lines in Active Galactic Nuclei. Comparison of high and low ionization lin…
Accretion Disk Line Emission in AGN: A Devil's Advocacy
J. W. Sulentic, P. Marziani, D. Dultzin-Hacyan
We review the evidence for AGN optical and X-ray broad line emission from an accretion disk. We argue that there is little, if any, statistical evidence to support this assertion.…
On the Difference Between Radio Quiet and Radio Loud AGN
P. Marziani, M. Calvani, J. W. Sulentic
A systematic difference in alignment between the central black hole spin and the angular momentum of the accreting gas may help explain several differences found in the optical and…