Galactosynthesis Predictions at High Redshift

Details Galactosynthesis Predictions at High Redshift Galactosynthesis Predictions at High Redshift

2001-02-02

arxiv.org/abs/astro-ph/0102025v1

Mon.Not.Roy.Astron.Soc. 328 (2001) 520

Astronomy and Astrophysics

Astrophysics

Submitted to MNRAS, 5 pages, 3 figures

Scientific paper

10.1046/j.1365-8711.2001.04895.x

We predict the Tully-Fisher (TF) and surface-brightness--magnitude relation for disk galaxies at z=3 and discuss the origin of these scaling relations and their scatter. We show that the variation of the TF relation with redshift can be a potentially powerful discriminator of galaxy-formation models. In particular, the TF relation at high redshift might be used to break parameter degeneracies among galactosynthesis models at z=0, as well as to constrain the redshift distribution of collapsing dark-matter halos, the star-formation history and baryon fraction in the disk, and the distribution of halo spins.

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