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The most metal-rich damped Lyman alpha systems at z>1.5 I: The Data
Trystyn A. M. Berg, Marcel Neeleman, J. Xavier Prochaska +2
We present HIRES observations for 30 damped Lyman alpha systems, selected on the basis of their large metal column densities from previous, lower resolution data. The measured meta…
Probing the Physical Conditions of Atomic Gas at High Redshift
Marcel Neeleman, J. Xavier Prochaska, Arthur. M. Wolfe
A new method is used to measure the physical conditions of the gas in damped Lyman-alpha systems (DLAs). Using high resolution absorption spectra of a sample of 80 DLAs, we are abl…
Directly imaging damped Ly-alpha galaxies at z>2. II: Imaging and spectroscopic observations of 32 quasar fields
Michele Fumagalli, John M. O'Meara, J. Xavier Prochaska +2
Damped Ly-alpha absorbers (DLAs) are a well-studied class of absorption line systems, and yet the properties of their host galaxies remain largely unknown. To investigate the origi…