Publications (8)
Novel Probes of Gravity and Dark Energy
Bhuvnesh Jain, Austin Joyce, Rodger Thompson +29
The discovery of cosmic acceleration has stimulated theorists to consider dark energy or modifications to Einstein's General Relativity as possible explanations. The last decade ha…
The Magellan Uniform Survey of Damped Lyman alpha Systems I: Cosmic Metallicity Evolution
Regina A. Jorgenson, Michael T. Murphy, Rodger Thompson
We present the chemical abundance measurements of the first large, medium-resolution, uniformly selected damped Lyman alpha system (DLA) survey. The sample contains 99 DLAs towards…
Exploring the NRO Opportunity for a Hubble-sized Wide-field Near-IR Space Telescope -- NEW WFIRST
Alan Dressler, David Spergel, Matt Mountain +24
We discuss scientific, technical and programmatic issues related to the use of an NRO 2.4m telescope for the WFIRST initiative of the 2010 Decadal Survey. We show that this impleme…
WFIRST Science with a Probe Class Mission
Rodger Thompson, James Green, George Rieke +7
WFIRST is the highest priority space mission of the Decadal review, however, it is unlikely to begin in this decade primarily due to a anticipated NASA budget that is unlikely to h…
Stellar Populations and Galaxy Morphology at High Redshift
Andrew Bunker, Hyron Spinrad, Daniel Stern +4
In this article we investigate the morphology and stellar populations of high-redshift galaxies through multi-waveband HST imaging and ground-based spatially-resolved spectroscopy.…
High-resolution near-infrared imaging of the Orion 114-426 silhouette disk
Mark J. McCaughrean, Hua Chen, John Bally +6
We present the first high-resolution near-infrared images of the edge-on silhouette circumstellar disk, Orion 114-426, made using NICMOS on the Hubble Space Telescope. Images taken…
HST Imaging of a z=1.55 Old Galaxy Group
Andrew Bunker, Hyron Spinrad, Ross McLure +7
We present high-resolution imaging in the rest-frame optical of the weak radio source LBDS53W091. Previous optical spectroscopy has shown that this object has an evolved stellar po…
The Magellan Uniform Survey of Damped Lyman alpha Systems II: Paucity of Strong Molecular Hydrogen Absorption
Regina A. Jorgenson, Michael T. Murphy, Rodger Thompson +1
We present the first large, blind and uniformly selected survey for molecular hydrogen (H_2) in damped Lyman alpha systems (DLAs) with moderate-to-high resolution spectra. 86 DLAs…