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Some Recent Developments in Solar Dynamo Theory

Choudhuri, Arnab Rai (2006) Some Recent Developments in Solar Dynamo Theory. In: Journal of Astrophysics and Astronomy, 27 (2-3). pp. 79-85.

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We discuss the current status of solar dynamo theory and describe the dynamo model developed by our group. The toroidal magnetic field is generated in the tachocline by the strong differential rotation and rises to the solar surface due to magnetic buoyancy to create active regions. The decay of these active regions at the surface gives rise to the poloidal magnetic field by the Babcock-Leighton mechanism. This poloidal field is advected by the meridional circulation first to high latitudes and then down below to the tachocline. Dynamo models based on these ideas match different aspects of observational data reasonably well

Item Type: Journal Article
Publication: Journal of Astrophysics and Astronomy
Publisher: Springer
Additional Information: Copyright of this article belongs to Spinger.
Keywords: Sun: magnetic field;sunspots;solar cycle;MHD
Department/Centre: Division of Physical & Mathematical Sciences > Physics
Date Deposited: 30 May 2008
Last Modified: 19 Sep 2010 04:45
URI: http://eprints.iisc.ac.in/id/eprint/14073

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