Does solar differential rotation ARISE from a large scale instability?

Details Does solar differential rotation ARISE from a large scale instability? Does solar differential rotation ARISE from a large scale instability?

Apr 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994a%26a...284..259t&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 284, no. 1, p. 259-264

Astronomy and Astrophysics

Astronomy

9

Convective Flow, Flow Equations, Hydrodynamics, Rayleigh-Benard Convection, Solar Convection (Astronomy), Solar Rotation, Stability, Stellar Models, Symmetry

Scientific paper

The suggestion by several authors that the solar differential rotation is caused by a large scale instability of the basic convective state is examined. We find that the proposed mean-field models are unstable to a Rayleigh-Benard type instability, but argue that this cannot explain the differential rotation of the Sun, because such a flow would become nonaxisymmetric. We discuss the applicability of the mean-field equations to the problem.

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