Perturbations in gravitational potential associated with solar oscillations

  • J. Christensen-Dalsgaard
  • D. O. Gough
3. Solar Oscilations Theoretical Implications of Observations
Part of the Lecture Notes in Physics book series (LNP, volume 125)


The relation between the amplitudes of the gravitational potential perturbation and the displacement eigenfunctions of adiabatic oscillations of a solar model is discussed, and numerical results are tabulated for a selection of modes of low degree. In particular, a solar quadrupole oscillation with period 160m and rms surface velocity of 1 ms−1 would induce a perturbation in the external gravitational potential with an oscillating quadrupole moment of amplitude about one-third that of the static moment that would be produced by a uniform interior rotation of the sun with angular velocity comparable with that observed on the surface. It is concluded that quadrupole oscillations might be detectable gravitationally.


Gravitational Potential Convection Zone Solar Model Buoyancy Frequency Axisymmetrical Mode 
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Copyright information

© Springer-Verlag 1980

Authors and Affiliations

  • J. Christensen-Dalsgaard
    • 1
    • 2
  • D. O. Gough
    • 3
  1. 1.Astronomisk InstitutAarhus UniversitetDenmark
  2. 2.Institut d'AstrophysiqueUniversite de LiegeBelgium
  3. 3.Institute of Astronomy, and Department of Applied Mathematics and Theoretical PhysicsUniversity of CambridgeUK

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