Physics
Scientific paper
Mar 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989icar...78....1p&link_type=abstract
Icarus (ISSN 0019-1035), vol. 78, March 1989, p. 1-13.
Physics
57
Dione, Europa, Ion Irradiation, Magnetospheric Ion Density, Planetary Magnetospheres, Ion Implantation, Oxygen Ions, Particle Tracks, Satellite Surfaces, Sulfur, Planets, Europa, Dione, Jupiter, Satellites, Magnetosphere, Saturn, Ions, Bombardment, Implantation, Plasma, Sulfur, Oxygen, Velocity, Parameters, Ultraviolet, Absorption, Wavelengths, Distribution, Surface, Sputtering, Reflectance, Diagrams, Calculations, Voyager Missions, Spacecraft Observations, Lecp Instrument, Trajectories
Scientific paper
Bombardment profiles generated by tracking ions in magnetospheric plasmas onto the surface of a satellite with a suitable description of the ion motion are used to calculate the spatial dependence across a satellite surface of the ion bombardment/implantation rate for satellites embedded in planetary magnetospheric plasmas. Attention is given to the results of a parameter study; a general dependency on ion gyroradius and pitch angle is noted, together with a strong dependence of access to the leading hemisphere on pitch-angle distribution. Gyromotion is found to cause differences in the bombardment of the inner and outer hemisphere. Reasonable speed and pitch-angle distributions are used to calculate profiles for sulfur ions incident on Europa and oxygen ones incident on Dione.
Johnson Robert E.
Pospieszalska M. K.
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