The Lyα Forest from Gravitational Collapse in the Cold Dark Matter + Λ Model
The Astrophysical Journal1996Vol. 471(2), pp. 582–616
Citations Over TimeTop 1% of 1996 papers
Abstract
We use an Eulerian hydrodynamic cosmological simulation to model the Lya forest in a spatially at, COBE-normalized, cold dark matter model with ) \ 0.4. We nd that the intergalactic, photoionized gas is predicted to collapse into sheetlike and lamentary structures which give rise to absorption lines having characteristics similar to the observed Lya forest. A typical lament is D500 h~1 kpc long with thickness D50 h~1 kpc (in proper units), and baryonic mass D1010 h~1
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