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Solar g-modes

  • H. B. van der Raay
Part IV Observations of Solar Oscillations
Part of the Lecture Notes in Physics book series (LNP, volume 367)

Abstract

An analysis of long data stretches covering the years 1982–1987, obtained from a whole disc optical resonant scattering spectrometer, indicate the presence of significant signals in the 25–75 µHz frequency range. The period spacings of these signals are found to be in four groups, which, determined independently for each year, are not only consistent but correspond with the predictions of the Tassoul (1980) asymptotic theory. Further, an investigation of the phase coherence of specific signal frequencies indicate life-times of several hundred days. These signals therefore show all the anticipated characteristics of solar g modes.

Keywords

Phase Coherence Period Grouping Full Disc Period Spacing Sight Velocity 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag 1990

Authors and Affiliations

  • H. B. van der Raay
    • 1
  1. 1.School of Physics and Space ResearchThe University of BirminghamBirminghamUK

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