Dynamo action and the nearly axisymmetric magnetic field of Saturn

Details Dynamo action and the nearly axisymmetric magnetic field of Saturn Dynamo action and the nearly axisymmetric magnetic field of Saturn

Sep 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000georl..27.2889l&link_type=abstract

Geophysical Research Letters, Volume 27, Issue 18, p. 2889-2892

Physics

7

Geomagnetism And Paleomagnetism: Dynamo Theories, Planetology: Fluid Planets: Interiors, Planetology: Fluid Planets: Magnetic Fields And Magnetism, Planetology: Solar System Objects: Saturn

Scientific paper

We examine kinematic dynamo action in an electrically conducting spherical body of fluid with an overlying shell of differential rotation. It is thought that such flow types could explain the nearly axisymmetric magnetic field of Saturn. Although we find that an outer layer of differential rotation can `axisymmetrize' the exterior magnetic field, surprisingly, sometimes it does not, giving magnetic fields that have no axisymmetric ingredients.

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