Astronomy and Astrophysics – Astrophysics
Scientific paper
Dec 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005sf2a.conf..763j&link_type=abstract
SF2A-2005: Semaine de l'Astrophysique Francaise, meeting held in Strasbourg, France, June 27 - July 1, 2005, Edited by F. Casoli
Astronomy and Astrophysics
Astrophysics
1
Scientific paper
Inspired by recent observations and 3D simulations that both exhibit multicellular meridional circulation flows in the solar convection zone, we seek to characterize the influence of such multiple flows in setting the magnetic solar cycle period. For most existing mean field dynamo models of flux transport type, the flow is assumed to be constituted of a large single cell per meridional quadrant extending from the surface (where it is poleward) to slightly below the core-envelope interface (where it is equatorward). Here we study the influence of adding meridional cells both in latitude and in radius. We confirm that 2 cells in latitude speeds up the cycle but we find on the contrary that 2 cells in radius significantly increases the cycle period.
Brun Allan Sacha
Jouve Laurene
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