The solar dynamo and the convective rolls

Details The solar dynamo and the convective rolls The solar dynamo and the convective rolls

Sep 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988soph..117..217w&link_type=abstract

(Solar Cycle Workshop, Meeting, 2nd, Lake Tahoe, CA, May 1987) Solar Physics (ISSN 0038-0938), vol. 117, no. 2, 1988, p. 217-226

Physics

4

Axes Of Rotation, Dynamo Theory, Solar Activity, Solar Cycles, Solar Rotation, Angular Velocity, Solar Magnetic Field, Solar Wind Velocity, Velocity Distribution

Scientific paper

The most sophisticated attempts to model the convection zone have yielded results in which the angular velocity increases outwards and the largest scales of convection take the form of 'banana cells' aligned with the rotation axis. It is shown that convective upflows and downflows are preferentially generated along the rotation axis and thus initially the large-scale eddies may take the form of azimuthal rolls surrounding the poles. It is then shown that such a system may generate a progressive dynamo wave propagating from pole to equator. The compatibility of the most recent helioseismology data with the azimuthal roll model is discussed.

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