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GENERALIZATION OF COWLING THEOREM

Abstract:
An extension of Cowling's neutral point arguments shows that no axisymmetric poloidal magnetic field can be maintained by self-exciting dynamo action in an electrically-conducting fluid against the dissipative effects of Ohmic heating. This generalizes previous results to cases where the magnetic field can be non-steady, the fluid compressible and the (scalar) coefficient of magnetic permeability and electrical conductivity dependent on position and time.-Authors
Publication status:
Published

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Publisher copy:
10.1080/03091928208208961

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Journal:
GEOPHYSICAL AND ASTROPHYSICAL FLUID DYNAMICS
Volume:
19
Issue:
3-4
Pages:
301-309
Publication date:
1982
DOI:
EISSN:
1029-0419
ISSN:
0309-1929
URN:
uuid:9e707fac-69d5-4066-8cd5-60b8e90cfa50
Source identifiers:
169951
Local pid:
pubs:169951
Language:
English

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