Solar oscillations - Full disk observations from the geographic South Pole

Details Solar oscillations - Full disk observations from the geographic South Pole Solar oscillations - Full disk observations from the geographic South Pole

Dec 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980natur.288..541g&link_type=abstract

Nature, vol. 288, Dec. 11, 1980, p. 541-544.

Other

136

Polar Regions, Solar Oscillations, Solar Probes, Stellar Structure, Abundance, Chemical Composition, Electrophotometers, Solar Observatories

Scientific paper

Observations on solar oscillation at the South Pole are reported. A vertical telescope provides two nonrotating solar images, one focused on the guiding sensor array, and the other on a sodium optical resonance photoelectric spectrophotometer. The power in the 3 mHz range is resolved into many equidistant peaks separated by 68.0 micro Hz. The splitting of the peaks indicates that global modes with l values of 0, 1, 2, and 3 have been identified. Favorable conditions for undertaking solar oscillation studies at the South Pole are also examined. The sun remains essentially at a constant angular attitude during the austral summer, uninterrupted data runs of appreciable length are feasible, and the precipitable water vapor content is low because of the low temperature.

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