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The end of the beginnings

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  • Roberto Abraham

    (Royal Greenwich Observatory)

Abstract

Astronomers can now peer far back in time, to redshifts of up toz= 4, and look at galaxies at different stages over 80-90 per cent of the total age of the Universe. A result is that the outline of a consensus about how galaxies form and evolve, as quantified by changes in star-formation rates, is emerging. A hierarchical picture best fits the evidence, one in which small, amorphous proto-galaxies form first, eventually settling into disk galaxies such as spirals, which can then also merge to form ellipticals.

Suggested Citation

  • Roberto Abraham, 1997. "The end of the beginnings," Nature, Nature, vol. 387(6636), pages 850-851, June.
  • Handle: RePEc:nat:nature:v:387:y:1997:i:6636:d:10.1038_43059
    DOI: 10.1038/43059
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