Large-Scale Structure at High Redshift
The evidence for large-scale structure at high redshifts is reviewed. I conclude that massive Mpc scale galaxy clusters probably exist at z > 2. The 2139–4430 galaxy cluster at redshift 2.38 is discussed as a case study. This remarkable cluster may consist of ~ 10 Ly-α emitting galaxies, and as many as 100 other, less active galaxies, selected by a novel near-IR photometric technique. Most of these galaxies appear to be quite old (≳ 1Gyr). Five of these galaxies form a very compact group,...[Show more]
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