Theory of solar oscillations

Details Theory of solar oscillations Theory of solar oscillations

Jun 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985esasp.235..183g&link_type=abstract

In ESA Future Missions in Solar, Heliospheric and Space Plasma Physics p 183-197 (SEE N86-27330 18-12)

Physics

33

Helioseismology, Solar Oscillations, Solar Physics, Acoustic Velocity, Convection, Solar Activity Effects, Solar Interior, Solar Rotation

Scientific paper

Analyses of helioseismological data, and the theoretical issues they raise are discussed to illustrate how measurements influence concepts of the solar interior, and to suggest avenues of enquiry. The properties of resonant modes of oscillation are reviewed, to illustrate which aspects of the solar structure can be measured from their frequencies. A determination of the variation of sound speed through much of the interior of the Sun is described. The measurement reveals at least one error in a theoretical solar model, and suggests the presence of macroscopic motion in the solar core. More sophisticated analyses of the data should provide important diagnostics of the outer layers of the Sun, to improve understanding of the dynamics of the convetions zone.

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