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Proximity of early galaxies to each other

  1. Dec 17, 2009 #1
    Given that the universe is expanding and galaxies in general are accelerating away from each other, I would assume that galaxies appearing in the Hubble deep field at a distance of 12 or 13B light years from us should be much closer to each other than is typical for galaxies today. Is this a correct assumption, that this "older" universe we view is much more crowded?
  2. jcsd
  3. Dec 17, 2009 #2


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  4. Dec 18, 2009 #3


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    The problem with deep sky studies is only freakishly bright objects are detectable at great distances. Using 2df quasar data, density [of quasars] is fairly stable over time. The greatest density actually occur around 2-3 billion years after the BB. This is not shocking. It takes time for things like quasars to form. This little hump puts a big hurt on steady state theory, as does CMB, primordial elemental abundance, and other solid observational evidence.
    Last edited: Dec 18, 2009
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