activity
19952020
most citedOn the Nature of Soft X-ray Weak Quasi-Stellar Objects

317 citations · 2.3k across the 41 of their papers we have counts for

collaborators

41 papers

astro-ph.GA2020★ 4 cited

Investigating orientation effects considering angular resolution for a sample of radio-loud quasars using VLA observations

Jaya Maithil, Jessie C. Runnoe, Michael S. Brotherton +4

Radio core dominance measurements, an indicator of jet orientation, sometimes rely on core flux density measurements from large-area surveys like Faint Images of the Radio Sky at T…

astro-ph.CO2012★ 43 cited

The orientation dependence of quasar single-epoch black hole mass scaling relationships

Jessie C. Runnoe, Michael Brotherton, Zhaohui Shang +2

Black hole masses are estimated for radio-loud quasars using several self-consistent scaling relationships based on emission-line widths and continuum luminosities. The emission li…

astro-ph.CO2011★ 230 cited

The New Generation Atlas of Quasar Spectral Energy Distributions from Radio to X-rays

Zhaohui Shang, Michael Brotherton, Beverley J Wills +14

We have produced the next generation of quasar spectral energy distributions (SEDs), essentially updating the work of Elvis et al. (1994) by using high-quality data obtained with s…

astro-ph.CO2009★ 19 cited

Strong [O III] Objects Among SDSS Broad-Line Active Galaxies

Randi R. Ludwig, Beverley Wills, Jenny E. Greene +1

We present the results of a spectral principal component analysis on 9046 broad-line AGN from the Sloan Digital Sky Survey. We examine correlations between spectral regions within…

astro-ph2007★ 71 cited

Spectral Properties From Lyman-alpha to H-alpha For An Essentially Complete Sample of Quasars I: Data

Zhaohui Shang, Beverley J. Wills, D. Wills +1

We have obtained quasi-simultaneous ultraviolet-optical spectra for 22 out of 23 quasars in the complete PG-X-ray sample with redshift, z<0.4, and M_B<-23. The spectra cover rest-f…

astro-ph2006★ 38 cited

X-Ray Absorption and an X-Ray Jet in the Radio-Loud Broad Absorption Line Quasar PG 1004+130

B. P. Miller, W. N. Brandt, S. C. Gallagher +4

We investigate the X-ray properties of PG 1004+130, a low-redshift radio-loud broad absorption line (BAL) quasar with a hybrid FR I/FR II radio morphology. The 22.2 ks XMM-Newton a…