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Turbulent effects in flux-transport solar dynamos

Published online by Cambridge University Press:  01 November 2008

G. A. Guerrero ,
E. M. de Gouveia Dal Pino  and
M. Dikpati
G. A. Guerrero
Affiliation:
Department of Astronomy, IAG, University of Sao Paulo, Sao Paulo, SP, Brazil email: [email protected], [email protected]
E. M. de Gouveia Dal Pino
Affiliation:
Department of Astronomy, IAG, University of Sao Paulo, Sao Paulo, SP, Brazil email: [email protected], [email protected]
M. Dikpati
Affiliation:
High Altitude Observatory, National Center for Atmospheric Research, P.O. Box 3000, Boulder, Colorado, 80307, USA email: [email protected]
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Abstract

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The effects of turbulent pumping and η-quenching on Babcock-Leighton dynamo models are explored separately. Turbulent pumping seems to be important to solve several reported problems in these dynamo models related to the magnetic flux transport and to the parity. On the other hand, the suppression of the magnetic diffusivity, η, could help in the formation of long-lived, small and intense structures of toroidal magnetic field.

Keywords

Sun: activity – Sun: magnetic fields
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 4 , Symposium S259: Cosmic Magnetic Fields: From Planets, to Stars and Galaxies , November 2008 , pp. 243 - 246
Copyright
Copyright © International Astronomical Union 2009

References

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