Turbulent dynamo action in the high-conductivity limit: a hidden dynamo
| dc.creator | Raedler, K. -H. | |
| dc.creator | Geppert, U. | |
| dc.date | 1999-11-10 | |
| dc.date.accessioned | 2026-07-07T02:34:18Z | |
| dc.date.available | 2026-07-07T02:34:18Z | |
| dc.description | The paper deals with a simple spherical mean-field dynamo model of $α^2$-type in the case of high electrical conductivity. A spherically symmetric distribution of turbulent motions is assumed inside a spherical fluid body surrounded by free space, and some complete form of the corresponding mean electromotive force is taken into account. For a turbulence lacking reflectional symmetry finite growth rates of magnetic fields prove to be possible even in the limit of perfect conductivity, that is, the model corresponds to a fast dynamo. In accordance with the theorem by Bondi and Gold the dynamo-generated field is completely confined in the fluid body. | |
| dc.description | 13 pages, 3 figures | |
| dc.identifier | https://arxiv.org/abs/astro-ph/9911165 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/9911165 | |
| dc.identifier | ASP Conference Series, Vol. 178, 199, p. 151 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/15194 | |
| dc.subject | Astrophysics | |
| dc.title | Turbulent dynamo action in the high-conductivity limit: a hidden dynamo | |
| dc.type | text |