Chaotic Alfven waves in multispecies plasmas

Details Chaotic Alfven waves in multispecies plasmas Chaotic Alfven waves in multispecies plasmas

Apr 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992jgr....97.4229b&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 97, no. A4, April 1, 1992, p. 4229-4233.

Physics

13

Chaos, Hamiltonian Functions, Magnetohydrodynamic Waves, Plasma Composition, Comets, Oxygen Ions, Solar Wind

Scientific paper

By means of the Hamiltonian formalism, it is shown that the nonlinear Alfven waves in a multispecies plasma in the presence of a driver can be chaotic provided the amplitude of the driver exceeds a certain threshold. This threshold is larger in the presence of heavier ions, e.g., oxygen in the case of comets and helium in the case of solar wind, than for plasma with only two species. This clearly shows that heavier ions tend to reduce the chaos.

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