Semi-analytic modelling of galaxy formation: the local Universe

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ID: 300609
1999
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Abstract
Using semi-analytic models of galaxy formation, we investigate galaxy properties such as the Tully-Fisher relation, the B and K-band luminosity functions, cold gas contents, sizes, metallicities, and colours, and compare our results with observations of local galaxies. We investigate several different recipes for star formation and supernova feedback, including choices that are similar to the treatment in Kauffmann, White & Guiderdoni (1993) and Cole et al. (1994) as well as some new recipes. We obtain good agreement with all of the key local observations mentioned above. In particular, in our best models, we simultaneously produce good agreement with both the observed B and K-band luminosity functions and the I-band Tully-Fisher relation. Improved cooling and supernova feedback modelling, inclusion of dust extinction, and an improved Press-Schechter model all contribute to this success. We present results for several variants of the CDM family of cosmologies, and find that models with values of $Ω_0 \simeq 0.3$--0.5 give the best agreement with observations.
Reference Key
openalex_W1969514664 Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Rachel S. Somerville, Joel R. Primack
Journal monthly notices of the royal astronomical society
Year 1999
DOI
10.1046/j.1365-8711.1999.03032.x
URL
https://academic.oup.com/mnras/article-pdf/310/4/1087/18632772/310-4-1087.pdf
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