Solar Oblateness and Fluid Spin-Down

See allHide authors and affiliations

Science  22 Dec 1967:
Vol. 158, Issue 3808, pp. 1562-1564
DOI: 10.1126/science.158.3808.1562


An experiment performed on a differentially rotating, density-stratified fluid shows that "spin-down" need not occur under the condition of stratification. Inasmuch as density stratification occurs in the interior of the sun, spin-down probably does not exist in the solar interior, and the observed solar oblateness may indicate that the sun contains a rapidly spinning core.