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Semi-analytical galaxy formation models and the high redshift universe

1998/10/23 by C. G. Lacey, Cedric Lacey, Lacey, Cedric +10
Physics and Astronomy · #Astronomy and Astrophysical Research #Astrophysics (astro-ph) #FOS: Physical sciences #Galaxies: Formation, Evolution, Phenomena #Scientific Research and Discoveries #astro-ph

paper · pdf · doi:10.48550/arxiv.astro-ph/9810386

5 pages, 3 figures. To appear in Proceedings of the MPA/ESO Conference "Evolution of Large-scale Structure: from Recombination to Garching", ed. A.J. Banday et al

arxiv created 1998/10/23 · openalex publication_date 1998/10/23 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

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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