Filamentation instability of Alfvén waves |
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| Authors: | P K Shukla L Stenflo |
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| Institution: | (1) Department of Plasma Physics, Umeå University, Umeå, Sweden;(2) Present address: Fakultät für Physik und Astronomie, Ruhr-Universität Bochum, Germany |
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| Abstract: | The filamentation instability of finite amplitude left-hand circularly polarized Alfvén waves has been investigated taking into account the second-order density and magnetic field perturbations that are created by the Alfvén wave pressure. The minimum scale length and time over which the filamentation occurs, are found. Our results are applied to Alfvén waves that should scatter cosmic rays in the interstellar medium (ISM). |
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