73 citations · 73 across the 3 of their papers we have counts for
8 papers · 1 filter
Fueling QSOs: The Relevance of Mergers
Nicola Bennert, Gabriela Canalizo, Bruno Jungwiert +4
To study the relevance of mergers for the fueling of QSOs, we are currently conducting an HST imaging campaign of a sample of QSO host galaxies classified as ellipticals in the lit…
Morphologies and Color Gradients of Luminous Evolved Galaxies at z~1.5
Elizabeth J. McGrath, Alan Stockton, Gabriela Canalizo +2
We have examined in detail the morphologies of seven z~1.5 passively evolving luminous red galaxies using high resolution HST NICMOS and ACS imaging data. Almost all of these galax…
Identification and Morphologies of Galaxies with Old Stellar Populations at z ~ 2.5
Alan Stockton, Elizabeth McGrath
We describe a study of morphologies of galaxies with old stellar populations in radio-source fields at z ~ 2.5. A significant fraction of these are dominated by disks of old stars,…
Integral Field Spectroscopy of Extended Emission-Line Regions around QSOs
Hai Fu, Alan Stockton
Luminous extended emission-line regions (EELRs) on kpc scales surround a substantial fraction of steep-spectrum radio-loud QSOs. Although their existence has been known for over th…
The Metallicity of Redshift 0.5<z<1 Field Galaxies
C. Marcella Carollo, Simon J. Lilly, Alan Stockton
We are undertaking a program to measure emission line ratios in a selected sample of CFRS starforming galaxies in order to compute their Interstellar Medium metalli…
Low-Ionization BAL QSOs in Ultraluminous Infrared Systems
Gabriela Canalizo, Alan Stockton
Low-ionization broad absorption line (BAL) QSOs present properties that cannot generally be explained by simple orientation effects. We have conducted a deep spectroscopic and imag…