The Solar Dynamo: The Role of Penetration, Rotation and Shear on Convective Dynamos
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In this paper I discuss the importance of turbulence, rotation, penetration and shear for solar dynamos (both local and global). An understanding of these processes is vital for progress towards a self-consistent theory for the generation of solar magnetic activity. I discuss the difficulties for large-scale field generation and suggest that large-scale solar magnetic activity may be driven by dynamos that arise owing to instabilities, with these dynamos modified by the presence of turbulence.
KeywordsSolar dynamo Sun Magnetic fields Magnetic activity
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- N.H. Brummell, F. Cattaneo, S.M. Tobias, The role of penetration in compressible dynamos (2008, in preparation) Google Scholar
- R.F. Stein, A. Nordlund, Solar surface magneto-convection and dynamo action, in SOLMAG 2002. Proceedings of the Magnetic Coupling of the Solar Atmosphere Euroconference and IAU Colloquium 188, 11–15 June 2002, Santorini, Greece, ed. by H. Sawaya-Lacoste. ESA SP-505, vol. 89 (ESA, Noordwijk, 2002), pp. 83–89 Google Scholar
- S.M. Tobias, The solar tachocline: Formation, stability and its role in the solar dynamo, in Fluid Dynamics and Dynamos in Astrophysics and Geophysics, ed. by A.M. Soward, C.A. Jones, D.W. Hughes, N.O. Weiss (CRC, Boca Raton, 2005), pp. 193 Google Scholar
- S.M. Tobias, N.O. Weiss, Stellar dynamos, in Mathematical Aspects of Natural Dynamos, ed. by E. Dormy, A.M. Soward (CRC, Boca Raton, 2007), pp. 281–312 Google Scholar
- N.O. Weiss, Thompson, Space Sci. Rev. (2008, this issue) Google Scholar