Proximity of early galaxies to each other

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SUMMARY

The discussion confirms that early galaxies, as observed in the Hubble deep field at distances of 12 to 13 billion light years, were indeed much closer together than contemporary galaxies due to the universe's expansion. The analysis utilizes 2df quasar data, indicating that quasar density remains stable over time, with peak density occurring 2-3 billion years post-Big Bang. This finding challenges the steady state theory and is supported by evidence from cosmic microwave background (CMB) radiation and primordial elemental abundance.

PREREQUISITES
  • Understanding of cosmic expansion and the Big Bang theory
  • Familiarity with quasar formation and density measurements
  • Knowledge of observational astronomy techniques, particularly Hubble deep field studies
  • Basic principles of cosmology, including cosmic microwave background (CMB) radiation
NEXT STEPS
  • Research the implications of quasar density on cosmological models
  • Explore the significance of cosmic microwave background (CMB) radiation in understanding the early universe
  • Study the formation and evolution of galaxies in the context of cosmic expansion
  • Investigate the challenges posed to steady state theory by current astronomical observations
USEFUL FOR

Astronomers, astrophysicists, and students of cosmology who are interested in the formation and distribution of early galaxies and the implications for our understanding of the universe's evolution.

dilletante
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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?
 
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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.
 
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