Gardner, J. P.Katz, N.Hernquist, L.Weinberg, D. H.2019-09-202001Gardner, Jeffrey P., Neal Katz, Lars Hernquist, and David H. Weinberg. 2001. “Simulations of Damped Lyα and Lyman Limit Absorbers in Different Cosmologies: Implications for Structure Formation at High Redshift.” The Astrophysical Journal 559 (1): 131–46. https://doi.org/10.1086/322403.0004-637X1538-4357http://nrs.harvard.edu/urn-3:HUL.InstRepos:41381835We use hydrodynamic cosmological simulations to study damped Ly alpha (DLA) and Lyman limit (LL) absorption at redshifts z = 2-4 in five variants of the cold dark matter scenario: COBE-normalized (CCDM), cluster-normalized (SCDM), and tilted (n = 0.8) Omega (m) = 1 models, as well as open (OCDM) and flat (LCDM) Omega (m) = 0.4 models. Our standard simulations resolve the formation of dense concentrations of neutral gas in halos with circular velocity ven-USJournal Article2019-09-2010.1086/322403