The case for a distributed solar dynamo shaped by near-surface shear |
|
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
|
 
 
 
 
|
|