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The case for a distributed solar dynamo shaped by near-surface shear View all abstracts by submitter

Axel Brandenburg   Submitted: 2005-04-09 00:51

Arguments for and against the widely accepted picture of a solar dynamo being seated in the tachocline are reviewed and alternative ideas concerning dynamos operating in the bulk of the convection zone, or perhaps even in the near-surface shear layer, are discussed. Based on the angular velocities of magnetic tracers it is argued that the observations are compatible with a distributed dynamo that may be strongly shaped by the near-surface shear layer. Direct simulations of dynamo action in a slab with turbulence and shear are presented to discuss filling factor and tilt angles of bipolar regions in such a model.

Authors: Axel Brandenburg
Projects: None

Publication Status: ApJ, 625, June 1, 2005
Last Modified: 2005-04-09 00:51
Go to main E-Print page  Phase mixing of shear Alfvén waves as a new mechanism for electron acceleration in collisionless, kinetic plasmas  The Sun as a MHD generator: application of a new heating mechanism for the coronal loops and closed magnetic structures  Edit Entry  Download Preprint  Submitter's Homepage Delete Entry 

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