734 citations · 6.4k across the 99 of their papers we have counts for
4 papers · 1 filter
Is the Optically Unidentified Radio Source, FIRST J121839.7+295325, a Dark Lens?
R. E. Ryan, S. H. Cohen, R. A. Windhorst +2
We present evidence that the optically unidentified radio source, FIRST J121839.7+295325, may be strongly lensing a background galaxy. We estimate the redshift of the assumed gravi…
Spectroscopic Confirmation of Faint Lyman Break Galaxies at Redshifts Four and Five in the Hubble Ultra Deep Field
James E. Rhoads, Sangeeta Malhotra, Norbert Pirzkal +6
We present the faintest spectroscopically confirmed sample of redshift four and five Lyman break galaxies to date. The sample is based on slitless grism spectra of the Hubble Ultra…
The Galaxy Luminosity Function at z~1 in the HUDF: Probing the Dwarf Population
R. E. Ryan, N. P. Hathi, S. H. Cohen +10
We present a catalog of spectro-photometric redshifts for 1308 galaxies from the GRism ACS Program for Extragalactic Science (GRAPES) observations with the Hubble Space Telescope.…
Did Galaxy Assembly and Supermassive Black-Hole Growth go hand-in-hand?
R. A. Windhorst, S. H. Cohen, A. N. Straughn +10
In this paper, we address whether the growth of supermassive black-holes has kept pace with the process of galaxy assembly. For this purpose, we first searched the Hubble Ultra Dee…