NIFS-631

FULL TEXT (PDF, 1117 KB)

Author(s):

N. Ishihara and S. Kida

Title:

Axial and Equatorial Magnetic Dipoles Generated in a Rotating Spherical Shell

Date of publication:

Mar. 2000

Key words:

dynamo, magnetic dipole, thermal convection, rotating spherical shell

Abstract:

Two types of magnetic dipole fields are generated by thermal convection in a rotating spherical shell. The axial (or equatorial) dipole in which the magnetic dipole moment is parallel (or perpendicular) to the rotation axis is realized at a larger (or smaller) value of the Rayleigh number. Their structure is robust and persists over the whole simulation period that is eight (or two) magnetic diffusion time.

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