Rotation of the Sun

Details Rotation of the Sun Rotation of the Sun

May 1967

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1967sci...156.1101g&link_type=abstract

Science, Volume 156, Issue 3778, pp. 1101-1102

Computer Science

13

Scientific paper

Dicke has interpreted his recent measurement of the sun's oblateness as implying a fast (1.8-day period) rotation of the solar radiative interior. We find that differentially rotating solar models, such as the one proposed by Dicke, are unstable. The rate of turbulent diffusion in the unstable regions of these models is so rapid that it appears to preclude a fast-spinning solar interior. As a corollary of the stability analysis, we conclude that the loss of a significant fraction of a star's angular momentum must be accompanied by the mixing of material below its convective zone. Such mixing inevitably leads to the depletion of lithium in the star's photosphere.

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