The K20 survey. IV. The redshift distribution of Ks<20 galaxies: a test of galaxy formation models

Preprint

9 July 2002

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.astro-ph/0207191

Abstract

We present the redshift distribution of a complete sample of 480 galaxies with Ks1 and z>1.5 respectively. A ``blind'' comparison is made with the predictions of a set of the most recent LambdaCDM hierarchical merging and pure luminosity evolution (PLE) models. The hierarchical merging models overpredict and underpredict the number of galaxies at low-z and high-z respectively, whereas the PLE models match the median redshift and the low-z distribution, still being able to follow the high-z tail of N(z). We briefly discuss the implications of this comparison and the possible origins of the observed discrepancies. We make the redshift distribution publicly available.

Keywords

All Related Versions

Version 1, 2002-07-09, ArXiv
Published version: Astronomy & Astrophysics, 391 (1), L1.

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