The Redshift Evolution of Clustering in the HDF

Details The Redshift Evolution of Clustering in the HDF The Redshift Evolution of Clustering in the HDF

1998-11-19

arxiv.org/abs/astro-ph/9811320v2

Astronomy and Astrophysics

Astrophysics

6 pages, 4 postscript figures, version to appear on MNRAS

Scientific paper

10.1046/j.1365-8711.1999.02612.x

We present a correlation function analysis for the catalogue of photometric redshifts obtained from the Hubble Deep Field image by Fernandez-Soto et al., 1998. By dividing the catalogue into redshift bins of width $\Delta z=0.4$ we measured the angular correlation function $w(\theta)$ as a function of redshift up to $z\sim 4.8$. From these measurements we derive the trend of the correlation length $r_0$. We find that $r_0(z)$ is roughly constant with look-back time up to $z \simeq 2$, and then increases to higher values at $z\simgt 2.4$. We estimate the values of $r_0$, assuming $\xi(r,z)=(r/r_0(z))^{-\gamma}$, $\gamma=1.8$ and different geometries. For $\Omega_0=1$ we find $r_0(z=3)\simeq 7.00\pm 4.87 h^{-1}$ Mpc, in good agreement with the values obtained from analysis of the Lyman Break Galaxies.

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