252 citations · 358 across the 3 of their papers we have counts for
3 papers
The Baldwin Effect and Black Hole Accretion: A Spectral Principal Component Analysis of a Complete QSO Sample
Zhaohui Shang, Beverley J. Wills, Edward L. Robinson +4
A unique set of UV-optical spectrograms of 22 low redshift QSOs are investigated using principal component analysis. We find three significant principal components over the broad w…
The Black Hole-Bulge Relationship in QSOs
G. A. Shields, K. Gebhardt, S. Salviander +5
We use QSO emission-line widths to examine the black hole mass - sigma relationship as a function of redshift and to extend the relationship to larger masses. Supermassive black ho…
H-beta Line Width and the UV-X-ray Spectra of Luminous AGN
B. J. Wills, Z. Shang, J. M. Yuan
The width of the broad H-beta emission line is the primary defining characteristic of the NLS1 class. This parameter is also an important component of Boroson and Green's optical E…