Magnetospheric ion bombardment profiles of satellites - Europa and Dione
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. 28 references.
- Research Organization:
- Virginia Univ., Charlottesville (USA)
- OSTI ID:
- 5810578
- Journal Information:
- Icarus; (United States), Vol. 78
- Country of Publication:
- United States
- Language:
- English
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GENERAL PHYSICS
JUPITER PLANET
SATELLITES
SURFACES
SATURN PLANET
ION IMPLANTATION
ION DENSITY
IRRADIATION
OXYGEN IONS
PARAMETRIC ANALYSIS
PARTICLE TRACKS
PLANETARY MAGNETOSPHERES
PLASMA
SULFUR
ATMOSPHERES
CHARGED PARTICLES
ELEMENTS
IONS
NONMETALS
PLANETARY ATMOSPHERES
PLANETS
640107* - Astrophysics & Cosmology- Planetary Phenomena