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arXiv 1998-10-23 0 views

Semi-analytical galaxy formation models and the high redshift universe

Lacey, Cedric · Baugh, Carlton · Cole, Shaun · Frenk, Carlos · Governato, Fabio

Original · EN

Semi-analytical models of galaxy formation based on hierarchical clustering now make a wide range of predictions for observable properties of galaxies at low and high redshift. This article concentrates on 2 aspects: (1) Self-consistent modelling of dust absorption predicts a mean UV extinction AUV 1 mag, depending only weakly on redshift, and similar to observational estimates. (2) The models predict that the Lyman-break galaxies found at z 3 should be strongly clustered with a comoving correlation length r₀ = 4-7 Mpc/h (depending on the cosmology), in good agreement with subsequent observational determinations.

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