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astro-ph1997
Abundances of Heavy Elements and CO Molecules in High Redshift Damped Lyman-alpha Galaxies
Limin Lu, Wallace L. W. Sargent, Thomas A. Barlow
Damped Lyman-alpha systems seen in spectra of background quasars are generally thought to represent high redshift counterparts of present-day galaxies. We summarize observations of…
astro-ph1997
Abundances in Damped Lyman-alpha Systems and Chemical Evolution of High Redshift Galaxies
Limin Lu, Wallace L. W. Sargent, Thomas A. Barlow
Recent abundance measurements in damped Lyman-alpha galaxies, supplemented with unpublished Keck observations, are discussed. The metallicity distribution with cosmic time is exami…
astro-ph1997
Initial Chemical Enrichment in Galaxies
Limin Lu, Wallace L. W. Sargent, Thomas A. Barlow
We present evidence that damped Lyman-alpha galaxies detected in spectra of quasars may not have started forming stars until the redshift z~3. If damped Lyman-alpha absorbers are t…