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Astron. Astrophys. 346, 1009-1010 (1999)


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Comment on "The sunspot as a self-excited dynamo"

David Moss 1 and Axel Brandenburg 2

1 Mathematics Department, University of Manchester, Manchester M13 9PL, UK
2 Mathematics Department, University of Newcastle, Newcastle upon Tyne NE1 7RU, UK

Received 8 February 1999 / Accepted 15 April 1999

Abstract

A recent paper claims that the well known Cowling `anti-dynamo' theorem is a "misconception", and that a simple axisymmetric sunspot model constitutes a counter example. We do not believe these claims to have been substantiated.

Key words: Magnetohydrodynamics (MHD) – Sun: magnetic fields – Sun: sunspots


© European Southern Observatory (ESO) 1999

Online publication: June 17, 1999

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