Seiches in supergranules

Details Seiches in supergranules Seiches in supergranules

Dec 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976natur.264..424g&link_type=abstract

Nature, vol. 264, Dec. 2, 1976, p. 424-426. Research supported by the Science Research Council and NSF.

Physics

6

Solar Atmosphere, Solar Granulation, Solar Spectra, Frequency Distribution, Incoherence, Oscillations, Phase Coherence, Radial Velocity, Surface Layers, Temperature Effects

Scientific paper

Seiches in supergranules are considered as a possible cause of the discrepancy between the report by Hill et al. (1976) concerning the oscillations of an apparent solar radius and the investigation by Grec and Fossat who failed to detect Doppler variations with similar periods in solar spectral lines. It is pointed out that the apparent discrepancy would be resolved if the variations detected by Hill et al. are the result of motions which are not coherent over the solar surface, so that they would be washed out in the measurements conducted by Grec and Fossat.

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