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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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Planetary dynamos Restricted Access | Restricted Access | 308.24 kB | Adobe PDF | View/Open Request a copy |
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