Publications (10)
Near-Infrared Spectroscopy of Two Galaxies at z=2.3 and z=2.9: New Probes of Chemical and Dynamical Evolution at High Redshift
Chip Kobulnicky, David Koo
This study presents Keck optical and infrared spectroscopy of the rest-frame ultraviolet and optical emission lines in two Lyman alpha emitting galaxies at z>2. These data provide…
The Morphology of 9 Radio-selected Faint Galaxies from deep HST Imaging
Nathan Roche, James Lowenthal, David Koo
Using the HST WFPC2 we perform deep I-band imaging of 9 radio-selected (limit 14 microJanskys at 8.5 GHz) faint galaxies from Roche, Lowenthal and Koo (2002). Two are also observed…
Universal Dark-matter Density Profiles of Cosmic Filaments
Peng Xu, Fangzhou Jiang, Farhanul Hasan +5
We present a comprehensive analysis of the radial dark-matter (DM) density profiles of cosmic filaments in the hydrodynamical simulation TNG50. The cosmic web is extracted from hig…
Keck Spectroscopy and Imaging of Faint Galaxies Identified as MicroJansky Radio Sources
Nathan Roche, James Lowenthal, David Koo
We investigate the nature of the faintest radio sources detected in 3 VLA surveys, to faint limits 8 microJy at 8.5 GHz. Using the Keck Low Resolution Imaging Spectrograph in BRI a…
CANDELS Visual Classifications: Scheme, Data Release, and First Results
Jeyhan S. Kartaltepe, Mark Mozena, Dale Kocevski +49
We have undertaken an ambitious program to visually classify all galaxies in the five CANDELS fields down to H<24.5 involving the dedicated efforts of 65 individual classifiers. On…
What turns galaxies off? The different morphologies of star-forming and quiescent galaxies since z~2 from CANDELS
Eric F. Bell, Arjen van der Wel, Casey Papovich +21
We use HST/WFC3 imaging from the CANDELS Multicycle Treasury Survey, in conjunction with the Sloan Digital Sky Survey, to explore the evolution of galactic structure for galaxies w…
Galaxy Zoo: Quantitative Visual Morphological Classifications for 48,000 galaxies from CANDELS
B. D. Simmons, Chris Lintott, Kyle W. Willett +45
We present quantified visual morphologies of approximately 48,000 galaxies observed in three Hubble Space Telescope legacy fields by the Cosmic And Near-infrared Deep Extragalactic…
The Relationship between Galaxy and Dark Matter Halo Size from z~3 to the present
Rachel S. Somerville, Peter Behroozi, Viraj Pandya +10
We explore empirical constraints on the statistical relationship between the radial size of galaxies and the radius of their host dark matter halos from --3 using the GA…
On the Origin of [OII] Emission in Red Sequence and Post-starburst Galaxies
Renbin Yan, Jeffrey A. Newman, S. M. Faber +3
We investigate the emission-line properties of galaxies with red rest-frame colors using spectra from SDSS DR4. Emission lines are detected in more than half of the red galaxies. W…
The DEEP2 Galaxy Redshift Survey: The Evolution of Void Statistics from z~1 to z~0
Charlie Conroy, Alison L. Coil, Martin White +6
We present measurements of the void probability function (VPF) at z~1 using data from the DEEP2 Redshift Survey and its evolution to z~0 using data from the Sloan Digital Sky Surve…