Charge exchange of solar wind ions in the Comet Halley coma

Details Charge exchange of solar wind ions in the Comet Halley coma Charge exchange of solar wind ions in the Comet Halley coma

Dec 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986esasp.250a.285s&link_type=abstract

In ESA Proceedings of the 20th ESLAB Symposium on the Exploration of Halley's Comet. Volume 1: Plasma and Gas p 285-289 (SEE N87

Astronomy and Astrophysics

Astronomy

3

Charge Exchange, Halley'S Comet, Helium Ions, Solar Protons, Solar Wind, Astronomical Models, Giotto Mission, Mass Spectrometers, Plasma-Particle Interactions, Radial Distribution

Scientific paper

In addition to solar wind pickup of cometary ions, charge exchange between solar wind ions and cometary neutrals may be an important comet-solar wind interaction closer to the nucleus. One monitor of the charge exchange rate is the relative abundances of solar wind He2+ and He+. Radial profiles of these two ions measured by the GIOTTO IMS/HERS instrument on the inbound trajectory to comet Halley are compared to a simple 1-dimensional charge exchange model. Results indicate that charge exchange alone cannot account for the observed radial profiles of He2+ and HE+.

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