The Evolution of Galaxy Clustering in MUSYC

Details The Evolution of Galaxy Clustering in MUSYC The Evolution of Galaxy Clustering in MUSYC

Dec 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005aspc..344...96p&link_type=abstract

The Cool Universe: Observing Cosmic Dawn, ASP Conference Series, Vol. 344, Proceedings of the conference held 4-8 October, 2004

Astronomy and Astrophysics

Astronomy

Scientific paper

We use MUSYC (Multi-wavelength Survey by Yale-Chile) observations of the Hubble Deep Field South (HDF-S) to measure galaxy clustering out to redshifts z≃1 using photometric redshift information to calculate the projected correlation function Ξ(σ). Due to large redshift measurement errors, we use mock MUSYC fields extracted from a ΛCDM simulation to determine and to correct for systematic effects. We find that the correlation length r0 of the real-space correlation function ξ(r) can be accurately recovered out to z=1. This is also true for the mass of galaxy haloes, which we calculate using the tet{Seljak2004} formalism. When applied to real data, we find that the correlation length r0 shows a trend similar to that of the dark matter but is consistently higher by about a factor of 1.5, and the mass of galaxy haloes is consistent with ≃ 3 M* over z=0.3-1.3 and a bias of b≃ 1.5.

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