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The European Physical Journal Special Topics

, Volume 152, Issue 1, pp 139–181 | Cite as

Cosmology

  • G. Börner
Article
  • 131 Downloads

Abstract.

Precise astronomical observations of the cosmic expansion and the anisotropies of the cosmic microwave background have confirmed the simple cosmological “big bang” models. They have also produced evidence for a strange composition of the cosmic matter and energy density. The known baryons contribute only 5 percent to the cosmic substrate, while 25 percent are due to unknown dark matter particles, and 70 percent seem to come from a mysterious dark energy component which presently acts like a cosmological constant accelerating the cosmic expansion.

Keywords

Dark Matter Dark Energy Cosmological Model European Physical Journal Special Topic Cosmic Microwave Background 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© EDP Sciences/Società Italiana di Fisica/Springer-Verlag 2007

Authors and Affiliations

  1. 1.Max-Planck-Institut für AstrophysikGarching bei MünchenGermany

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