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Importance of magnetic helicity in dynamos | | A. Brandenburg
; | | Date: |
15 Dec 2004 | | Journal: | in Cosmic magnetic fields, ed. R. Wielebinski & R. Beck, Springer, pp. 219-253 (2005) DOI: 10.1007/11369875_9 | | Subject: | astro-ph | | Affiliation: | Nordita | | Abstract: | Magnetic helicity is nearly conserved and its evolution equation provides a dynamical feedback on the alpha effect that is distinct from the conventional algebraic alpha quenching. The seriousness of this dynamical alpha quenching is particularly evident in the case of closed or periodic boxes. The explicit connection with catastrophic alpha quenching is reviewed and the alleviating effects of magnetic and current helicity fluxes are discussed. | | Source: | arXiv, astro-ph/0412366 | | Services: | Forum | Review | PDF | Favorites | |
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