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Detailed Reference Information
Oka et al. 2002
Oka, M., Terasawa, T., Noda, H., Saito, Y. and Mukai, T. (2002). ‘Torus’ distribution of interstellar helium pickup ions: Direct observation. Geophysical Research Letters 29: doi: 10.1029/2002GL015111. issn: 0094-8276.

A'torus'-like velocity distribution of the helium pickup ions has been detected in interplanetary space by GEOTAIL. A statistical survey shows that the observation probability of the 'torus' distribution amounts to nearly 20% and that the distribution pattern depends on the local magnetic field directions and turbulence levels. These results support the recent finding of a low pitch angle scattering rate and a large mean free path.

BACKGROUND DATA FILES

Abstract

Keywords
Interplanetary Physics, Pickup ions, Space Plasma Physics, Ionization processes, Space Plasma Physics, Transport processes, Interplanetary Physics, MHD waves and turbulence
Journal
Geophysical Research Letters
http://www.agu.org/journals/gl/
Publisher
American Geophysical Union
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