The acceleration of cometary ions by Alfven waves

Details The acceleration of cometary ions by Alfven waves The acceleration of cometary ions by Alfven waves

Aug 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989jplph..42...13d&link_type=abstract

Journal of Plasma Physics (ISSN 0022-3778), vol. 42, Aug. 1989, p. 13-25.

Physics

Plasma Physics

1

Cometary Atmospheres, Ion Motion, Magnetohydrodynamic Waves, Particle Acceleration, Bow Waves, Halley'S Comet, Laplace Transformation, Photoionization, Shock Waves

Scientific paper

In this paper the theoretical aspects of the stochastic acceleration of photoionized pick-up ions upstream of a comet's bow shock are examined. The acceleration is due to the resonant interaction of the ions with Alfven waves. By making physically reasonable assumptions for the turbulent fields and by including an exponential spatial factor in the injection term, it is found that, with spatial diffusion ignored, exact solutions can be found.

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