A flux-transport dynamo with a multi-cell meridional circulation

Details A flux-transport dynamo with a multi-cell meridional circulation A flux-transport dynamo with a multi-cell meridional circulation

Apr 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005an....326..170b&link_type=abstract

Astronomische Nachrichten, Vol.326, Issue 3, p.170-173

Astronomy and Astrophysics

Astronomy

15

Magnetohydrodynamics, Sun: Interior, Sun: Magnetic Field

Scientific paper

We discuss the effect of a non-trivial meridional circulation pattern on a flux-transport type of solar dynamo. The critical value of the turbulent helicity and the periods are calculated as a function of the meridional flow strength. We found that the dynamo mechanism is mainly determined by the global topology of the meridional flow. In particular the equatorwards migration in the butterfly diagram can be easily obtained by the combined action of two cells of meridional circulation.

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