Abundances in Damped Lyman-alpha Systems and Chemical Evolution of High Redshift Galaxies

Details Abundances in Damped Lyman-alpha Systems and Chemical Evolution of High Redshift Galaxies Abundances in Damped Lyman-alpha Systems and Chemical Evolution of High Redshift Galaxies

1997-10-31

arxiv.org/abs/astro-ph/9710370v1

Astronomy and Astrophysics

Astrophysics

CRCKAPB style (Kluwer, provided) LATEX file, 3 PS figures, 10 pages, to appear in Cosmic Chemical Evolution (Kluwer Academic P

Scientific paper

Recent abundance measurements in damped Lyman-alpha galaxies, supplemented with unpublished Keck observations, are discussed. The metallicity distribution with cosmic time is examined for clues about the degree of enrichment, the onset of initial star formation, and the nature of the galxies. The relative abundances of the elements are compared with the abundnce pattern in Galactic halo stars and in the Sun, taking into account of the effects of dust depletion, in order to gain insight into the stellar processes and the time scales by which the enrichment occurred.

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