Astrophysical Information

  • Pierre Léna
  • François Lebrun
  • François Mignard
Part of the Astronomy and Astrophysics Library book series (AAL)

Abstract

The aim of astrophysics is to describe, to understand and to predict the physical phenomena that occur in the Universe. The physical content of the Universe — dense or rarefied, hot or cold, stable or unstable — can be classified into categories, such as planets, stars, galaxies, and so on. The information received by observers and transformed into signals is the basis for these classifications, for the physical models and for the predictions, which together make up the science of astrophysics.

Keywords

Dust Convection Europe Helium Titan 

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Copyright information

© Springer-Verlag Berlin Heidelberg 1998

Authors and Affiliations

  • Pierre Léna
    • 1
  • François Lebrun
    • 2
  • François Mignard
    • 3
  1. 1.Observatoire de Paris-MeudonUniversité de Paris VIIMeudon Principal CedexFrance
  2. 2.Commissariat à l’Energie Atomique/SaclayDSM/DAPNIA/SApGif-sur-Yvette CedexFrance
  3. 3.Observatoire de la Côte d’AzurCentre de Recherche en Géodynamique et AstrométrieGrasseFrance

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