252 citations · 1.6k across the 21 of their papers we have counts for
21 papers
The Black Hole Mass - Galaxy Luminosity Relationship for Sloan Digital Sky Survey Quasars
S. Salviander, G. A. Shields, E. W. Bonning
We investigate the relationship between the mass of the central supermassive black hole, M_bh, and the host galaxy luminosity, L_gal, in a sample of quasars from the Sloan Digital…
A Captured Runaway Black Hole in NGC 1277?
G. A. Shields, E. W. Bonning
Recent results indicate that the compact lenticular galaxy NGC 1277 in the Perseus Cluster contains a black hole of approximately 10 billion solar masses. This far exceeds the expe…
Accretion Disk Temperatures of QSOs: Constraints from the Emission Lines
E. W. Bonning, G. A. Shields, A. C. Stevens +1
QSO emission-line spectra are compared to predictions based on theoretical ionizing continua of accretion disks. Observed line intensities do not show the expected trend of higher…
LBQS 0103-2753: A Binary Quasar in a Major Merger
G. A. Shields, D. J. Rosario, V. Junkkarinen +3
We present HST and UKIRT spectra and images of the 2 kpc binary quasar LBQS 0103-2753 (z=0.858). The HST images (V- and I-band) show tidal features demonstrating that this system i…
Double-Peaked Narrow Emission Lines in AGN: The Role of Rotating Disks
Krista Lynne Smith, G. A. Shields, S. Salviander +2
AGN with double-peaked narrow lines (DPAGN) may be caused by kiloparsec scale binary AGN, bipolar outflows, or rotating gaseous disks. We examine the class of DPAGN in which the tw…
Spatially-Resolved Spectroscopy of SDSS J0952+2552: a Confirmed Dual AGN
R. C. McGurk, C. E. Max, D. J. Rosario +3
Most massive galaxies contain supermassive black holes (SMBHs) in their cores. When galaxies merge, gas is driven to nuclear regions and can accrete onto the central black hole. Th…