Please use this identifier to cite or link to this item: http://hdl.handle.net/2248/4619
Title: Planetary dynamos
Authors: Gaur, V. K
Keywords: Astrophysical Turbulence
Pulsars
Dynamos
Solar and Space Plasmas
Planetary Dynamos
Issue Date: 2008
Publisher: Springer Netherlands
Citation: Hasan, S. S., Gangadhara, R. T. and Krishan, V. eds., Turbulence, dynamos, accretion disks, pulsars and collective plasma processes, First Kodai-Trieste workshop on plasma astrophysics held at the Kodaikanal Observatory., Astrophysics and space science proceedings., Kodaikanal., India, Aug 27 – Sept 7, 2007., pp. 85 - 96
Abstract: The article begins with a reference to the first rational approaches to explaining the earth’s magnetic field notably Elsasser’s application of magneto-hydrodynamics, followed by brief outlines of the characteristics of planetary magnetic fields and of the potentially insightful homopolar dynamo in illuminating the basic issues: theoretical requirements of asymmetry and finite conductivity in sustaining the dynamo process. It concludes with sections on Dynamo modeling and, in particular, the Geo-dynamo, but not before some of the evocative physical processes mediated by the Lorentz force and the behaviour of a flux tube embedded in a perfectly conducting fluid, using Alfvén theorem, are explained, as well as the traditional intermediate approaches to investigating dynamo processes using the more tractable Kinematic models.
Description: Restricted Access
The original publication is available at springerlink.com
URI: http://hdl.handle.net/2248/4619
ISBN: 978-1-4020-8867-4
Appears in Collections:IIAP Publications

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