Abstract
THE recent report by Hill, Stebbins and Brown1 of oscillations of an apparent solar radius has stirred a mild controversy2. In particular, the failure of Grec and Fossat3 to detect Doppler variations with similar periods in solar spectral lines provides striking contrast with the results of Hill et al. Both sets of observations have been carefully performed and thoughtfully analysed and, if one accepts both sets of results at face value, the problem of reconciling the two must be confronted. Here we consider seiches in supergranules as a possible cause of the discrepancy.
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References
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GOUGH, D., PRINGLE, J. & SPIEGEL, E. Seiches in supergranules. Nature 264, 424–426 (1976). https://doi.org/10.1038/264424a0
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DOI: https://doi.org/10.1038/264424a0
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