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

Dial 

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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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