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Evolution of magnetic field curvature in the Kulsrud-Anderson dynamo theory

Leonid Malyshkin
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Abstract

We find that in the kinematic limit the ensemble averaged square of the curvature of magnetic field lines is exponentially amplified in time by the turbulent motions in a highly conductive plasma. At the same time, the ensemble averaged curvature vector exponentially decays to zero. Thus, independently of the initial conditions, the fluctuation field becomes very curved, and the curvature vector becomes highly isotropic. Keywords: ISM: magnetic fields, MHD, turbulence, methods: analytical

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Leonid Malyshkin. 2001-04-30. Evolution of magnetic field curvature in the Kulsrud-Anderson dynamo theory. https://doi.org/10.1086/322351

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