Evolution of Clustering and Bias in a Lambda-CDM Universe
Astrophysics
2007-05-23 v1
Abstract
We determine the evolution from of the galaxy and mass correlation functions and bias factor in a Mpc CDM hydrodynamic simulation with kpc resolution. The mass correlation function grows with time, but the galaxy correlation function shows little evolution and is well described by a power law. At early times, galaxies are biased traces of mass, with bias being higher on smaller scales. By z=0, galaxies trace the mass, and the bias shows little scale dependence.
Keywords
Cite
@article{arxiv.astro-ph/9910221,
title = {Evolution of Clustering and Bias in a Lambda-CDM Universe},
author = {Romeel Davé and Lars Hernquist and Neal Katz and David H. Weinberg},
journal= {arXiv preprint arXiv:astro-ph/9910221},
year = {2007}
}
Comments
2 pages, contribution to the Proceedings of Rencontres Internationales de l'IGRAP, Clustering at High Redshift, Marseille 1999