1999/07/28 by Alvensleben, U. Fritze-v., Lindner, U., Möller, C. S.
#Astrophysics (astro-ph) #FOS: Physical sciences
paper · doi:10.48550/arxiv.astro-ph/9907396
We describe the evolution of galaxies in a chemically consistent way accounting for the increasing initial metallicity of successive generations of stars. The enrichment of various types of model galaxies is compared with Damped Lyα (= DLA) abundances over the redshift range from \rm z ∼ 0 through \rm z > 4.4. We discuss properties and composition of the galaxy population giving rise to DLA absorption. Beyond evolution of individual galaxies a change is found in the composition of DLA galaxy samples from high to low redshift. Spectrophotometric properties are predicted for optical identifications of DLA galaxies.