Solar Physics

, Volume 82, Issue 1–2, pp 55–66 | Cite as

Full-disk observations of solar oscillations from the geographic South Pole: Latest results

  • Gérard Grec
  • Eric Fossat
  • Martin A. Pomerantz
Invited Review

Abstract

This paper presents the latest results obtained from the analysis of the full-disk Doppler shift observations obtained at the geographic South Pole in 1981. About 80 normal modes of oscillation (l = 0–3) have now been identified. Their frequencies range from 1886 μHz (l = 1, n = 12) to 5074.5 μHz (l = 2, n = 35), and their amplitudes are as low as 2.5 cm s-1. Amplitude modulation occurs with periods of 1–2 days, and the individual oscillations appear to be excited randomly and independently. In cases where other groups have observed some of the modes identified by us, the agreement in frequency is good.

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References

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Copyright information

© D. Reidel Publishing Co 1983

Authors and Affiliations

  • Gérard Grec
    • 1
  • Eric Fossat
    • 2
  • Martin A. Pomerantz
    • 3
  1. 1.Department D'Astrophysique de l'I.M.S.P.E.R.A. du C.N.R.S. Université de NiceNice CedexFrance
  2. 2.Observatoire de NiceNice CedexFrance
  3. 3.Bartol Research Foundation of The Franklin Institute, University of DelawareNewarkU.S.A.

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