347 citations · 5.6k across the 141 of their papers we have counts for
8 papers · 1 filter
Estimating Black Hole Masses in Active Galactic Nuclei Using the MgII 2800 Emission Line
Jian-Guo Wang, Xiao-Bo Dong, Ting-Gui Wang +6
We investigate the relationship between the linewidths of broad Mg II \lambda2800 and Hbeta in active galactic nuclei (AGNs) to refine them as tools to estimate black hole (BH) mas…
Metal-Enriched Outflows in the Ultra-Luminous infrared Quasar Q1321+058
Tinggui Wang, Hongyan Zhou, Weimin Yuan +3
Quasar outflows may play important role in the evolution of its host galaxy and central black hole. In this paper, we present a detailed study of multiple outflows in the obscured…
Eddington ratio governs the equivalent width of MgII emission line in active galactic nuclei
Xiao-Bo Dong, Ting-Gui Wang, Jian-Guo Wang +4
We have investigated the ensemble regularities of the equivalent widths (EWs) of MgII 2800 emission line of active galactic nuclei (AGNs), using a uniformly selected sample of 2092…
partly obscured accretion disk model to explain Shifted broad Balmer emission lines of Active Galactic Nuclei
Xue-GUang Zhang, Deborah Dultzin, Ting-Gui Wang +1
We present a new model to explain the appearance of red/blue-shifted broad low-ionization emission lines, especially emission lines in optical band, which is commonly considered as…
The origin and physical mechanism of the ensemble Baldwin effect
Xiaobo Dong, Jianguo Wang, Tinggui Wang +5
We have conducted a systematic investigation of the origin and underlying physics of the line--line and line--continuum correlations of AGNs, particularly the Baldwin effect. Based…
What controls the Fe II strength in active galactic nuclei?
Xiaobo Dong, Jianguo Wang, Luis C. Ho +5
We used a large, homogeneous sample of 4178 z <= 0.8 Seyfert 1 galaxies and QSOs selected from the Sloan Digital Sky Survey to investigate the strength of Fe II emission and its co…