The Properties of Spiral Galaxies in Semi-Analytic Galaxy Formation Models

Details The Properties of Spiral Galaxies in Semi-Analytic Galaxy Formation Models The Properties of Spiral Galaxies in Semi-Analytic Galaxy Formation Models

2000-08-16

arxiv.org/abs/astro-ph/0008252v1

Astronomy and Astrophysics

Astrophysics

2 pages, 2 figures. To appear in ASP Conference Series, "Galaxy Disks and Disk Galaxies", J.G. Funes S.J. and E.M. Corsini, ed

Scientific paper

We examine the present-day galaxy disk colors and star formation rates (SFRs) in the semi-analytic model of Cole et al. (2000). We find that the fiducial model is a good match to Kennicutt's (1998) observed global star formation law, the color-based metallicity-magnitude correlation and the colors of low-luminosity galaxies. The main limitation of the model, from the point of view of present-day spirals, is that the optical colors of the disks of very luminous spiral galaxies are too blue, even after accounting for the effects of dust.

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