Stellar Acoustic Ray Patterns

  • J. Perdang
Conference paper
Part of the International Astronomical Union / Union Astronomique Internationale book series (IAUS, volume 123)


We have analysed and attempted to classify the acoustic ray patterns in stars whose equilibrium figure is globally deformed. We discuss here the effect of distortions of ellipsoidal and pear-shaped structure. Under ellipsoidal symmetry all ray patterns remain ‘regular’. For arbitrarily small pear-shaped deformations our numerical results indicate the occurrence of ‘chaotic’ ray patterns arising out of the unstable longest diameter ray. These chaotic rays cover the whole configuration space.


Spherical Symmetry Generic Hamiltonian System Distant Star Finite Distortion Ellipsoidal Symmetry 
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Copyright information

© International Astronomical Union 1988

Authors and Affiliations

  • J. Perdang
    • 1
    • 2
  1. 1.Institute of AstronomyCambridgeUK
  2. 2.Institut d’AstrophysiqueCointe-OugréeBelgium

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