Full-Disk Observations of Solar Oscillations from the Geographic South Pole: Latest Results
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 50...
| Published in: | International Astronomical Union Colloquium |
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| Main Authors: | , , |
| Format: | Article in Journal/Newspaper |
| Language: | English |
| Published: |
Cambridge University Press (CUP)
1983
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| Subjects: | |
| Online Access: | http://dx.doi.org/10.1017/s0252921100095397 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0252921100095397 |
| Summary: | 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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