Plasma production by meteoroid impact

Details Plasma production by meteoroid impact Plasma production by meteoroid impact

Apr 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985pggp.rept...50h&link_type=abstract

In NASA, Washington Repts. of Planetary Geol. and Geophys. Program, 1984 p 50-51 (SEE N85-23474 13-91)

Physics

Hypervelocity Impact, Meteoroids, Planetary Rings, Plasmas (Physics), Satellite Surfaces, Saturn (Planet), Density Distribution, Heavy Ions, Icy Satellites, Mass Transfer, Particles, Sputtering, Vaporizing

Scientific paper

Material ejected from the surfaces of satellites in the outer solar system plays an important role in the magnetospheres of the outer planets, and may dominate the mass loading, as in the vicinity of the Jovian satellite Io. At least four potential ejection mechanisms can be identified - intrinsic geologic activity, thermal sublimation, sputtering, and micrometeoroid impact vaporization. On all the icy satellites, except possibly Enceladus, sputtering and impact vaporization are the only two potentially important sources of magnetospheric plasma. Sputtering was shown to be an important mass source at both Jupiter and Saturn. The impact mechanism as a plasma source is assessed.

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