742 citations · 1.6k across the 35 of their papers we have counts for
4 papers · 2 filters
Changing-look active galactic nuclei: close binaries of supermassive black holes in action
Jian-Min Wang, Edi Bon
Changing-look active galactic nuclei (CL-AGNs) as a new subpopulation challenge some fundamental physics of AGNs because the timescales of the phenomenon can hardly be reconciled w…
Optical spectral properties of radio loud quasars along the main sequence
A. del Olmo, P. Marziani, V. Ganci +4
We analyze the optical properties of Radio-Loud quasars along the Main Sequence (MS) of quasars. A sample of 355 quasars selected on the basis of radio detection was obtained by cr…
The quasar main sequence and its potential for cosmology
P. Marziani, D. Dultzin, A. Del Olmo +10
The main sequence offers a method for the systematization of quasar spectral properties. Extreme FeII emitters (or extreme Population A, xA) are believed to be sources accreting ma…
Selection of highly-accreting quasars: Spectral properties of FeII emitters not belonging to extreme Population A
N. Bon, P. Marziani, E. Bon +5
The quasar class of extreme Population A (xA) (also known as super-Eddington accreting massive black holes, SEAMBHs) has been hailed as potential distance indicators for cosmology.…