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The UCSD HIRES/KeckI Damped Lya Abundance Database: I. The Data
Jason X. Prochaska, Arthur M. Wolfe, David Tytler +6
We present new chemical abundance measurements of 16 damped Lya systems at z>1.5 and update our previous abundance analyses. The entire database presented here was derived from HIR…
The UCSD HIRES/KeckI Damped Lya Abundance Database: II. The Implications
Jason X. Prochaska, Arthur M. Wolfe
We present a comprehensive analysis of the damped Lya abundance database presented in the first paper of this series. This database provides a homogeneous set of abundance measurem…
Are Simulations of CDM Consistent with Galactic-Scale Observations at High Redshift?
Jason X. Prochaska, Arthur M. Wolfe
We compare new observations on the kinematic characteristics of the damped Lya systems against results from numerical SPH simulations to test the predictions of hierarchical galaxy…
First Investigation of the Clustering Environment of Damped Lyman Alpha Absorbers at z=4
Eric Gawiser, Arthur M. Wolfe, Jason X. Prochaska +3
We report the first observations of the clustering environment of damped Lyman alpha absorption systems at z=4. Color selection and photometric redshifts were used to select 44 can…
Measuring Feedback in Damped Lyman Alpha Systems
Arthur M. Wolfe
We measure feedback (heating rates) in damped Lyman alpha systems from the cooling rate of the neutral gas. Since cooling occurs through [C II] 158 micron emission, we infer coolin…
Galactic Chemical Abundances at z>3 I: First Results from the Echellette Spectrograph and Imager
Jason X. Prochaska, Eric Gawiser, Arthur M. Wolfe
We present the first results from an ongoing survey to discover and measure the metallicity of z>3 damped Lya systems with the Echellette Spectrograph and Imager (ESI) on the Keck…