Strong Redshift Clustering of Distant Galaxies

Details Strong Redshift Clustering of Distant Galaxies Strong Redshift Clustering of Distant Galaxies

1996-02-22

arxiv.org/abs/astro-ph/9602120v1

Astronomy and Astrophysics

Astrophysics

18 pages, including 2 figures, accepted for publication in ApJ Letters

Scientific paper

10.1086/310020

We present initial results from a redshift survey carried out with the Low Resolution Imaging Spectrograph on the 10~m W. M. Keck Telescope of a field 14.6 arc-min$^2$ in solid angle. In the redshift distribution of the 106 extragalactic objects in this sample we find five strong peaks, with velocity dispersions of ${\sim}500${\kms}. There is evidence for a non-uniform areal density of objects in at least two peaks. These peaks have characteristics (velocity dispersions, density enhancements, spacing, and spatial extent) similar to those of nearby galaxy structures (e.g., walls and clusters), and these are expected in a survey of this kind. We suggest that the prominence of these structures in our survey relative to that in other surveys can be attributed to our $K$-selection and dense sampling.

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