Physics
Scientific paper
Aug 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988georl..15..772h&link_type=abstract
Geophysical Research Letters (ISSN 0094-8276), vol. 15, Aug. 1988, p. 772-775.
Physics
10
Charge Exchange, Energetic Particles, Neutral Atoms, Plasma Density, Saturn (Planet), Titan, Energy Distribution, Hydrogen Atoms, Positive Ions, Spatial Distribution
Scientific paper
A model for the production of energetic neutral atoms (ENAs) in the Saturn/Titan system, that takes into account existing data on the spatial distribution of the background neutral density, the energy and spatial distributions of the energetic ions, and the energy dependence of the charge-exchange cross sections, is presented. Hydrogen production via H(+), H is presented in detail. The extended Saturn/Titan system is 'imaged' in energetic neutral H at 66 R(s) and 25-deg latitude. From this vantage point, the energetic H flux is 6 + or - 1 H/sq cm per sec between 10 and 100 keV. Comparing the predicted H spectrum with that observed by Kirsch et al. (1981), the production of neutral O is estimated, and it is concluded that O(+), H charge exchange in the inner magnetosphere is sufficient to account for all the ENA O production.
Curtis Christina
Hsieh K. C.
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