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Cosmological Horizons

  • Jean Heidmann

Abstract

In Chapter 11 we have seen that, in the Einstein-de Sitter universe, the number of observable objects is limited even though the space is infinite Euclidean. This happens because at a certain “distance” the spectral ratio becomes infinite and the photons then no longer bring us energy. The observations reach to a “horizon” due to cosmological expansion.

Keywords

Event Horizon Light Cone Spectral Ratio Cosmological Horizon Spherical Space 
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

© Springer-Verlag Berlin Heidelberg 1980

Authors and Affiliations

  • Jean Heidmann
    • 1
  1. 1.Section d’AstrophysiqueObservatoire de ParisMeudonFrance

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