Physics
Scientific paper
Oct 1995
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995csf.....5.1975t&link_type=abstract
Chaos Solitons Fractals, Vol. 5, No. 10, p. 1975 - 1984
Physics
4
Accretion Disks: Dynamo Theory, Accretion Disks: Chaotic Motions
Scientific paper
Accretion disks appear to be favourable places for dynamo action, because of their strong differential rotation. A simple estimate of the strength of an accretion disk dynamo indicates that it will be highly nonlinear. In spite of this, most studies hitherto have assumed a linear model for the dynamo. The authors investigate nonlinear, axisymmetric mean-field dynamos in accretion disks in order to study the route to chaotic solutions in certain parameter regimes. The authors find a sequence of bifurcations that lead eventually to chaos. Finally, the physical significance of these results is discussed.
Brandenburg Axel
Torkelsson Ulf
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