Electrostatic ion-cyclotron waves in a plasma with heavy negative ions

Details Electrostatic ion-cyclotron waves in a plasma with heavy negative ions Electrostatic ion-cyclotron waves in a plasma with heavy negative ions

Oct 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008p%26ss...56.1552k&link_type=abstract

Planetary and Space Science, Volume 56, Issue 11, p. 1552-1559.

Physics

1

Scientific paper

Results of a laboratory study of electrostatic ion-cyclotron (EIC) waves in a plasma containing K+ (39 amu) positive ions, electrons and C7F14- (350 amu) negative ions are presented. Excitation of the fundamental and higher harmonic light and heavy ion EIC modes was observed. The presence of heavy negative ions in the plasma has a significant effect on the excitation of the light ion EIC modes. The results may be relevant to the understanding of plasma wave properties in plasmas containing negative ions, such as those found in the Earth's ionosphere, the solar system, and, in particular, near Saturn's moon Titan, where an abundance of heavy negative ion species has recently been discovered [Coates, et al., 2007. Discovery of heavy negative ions in Titan's ionosphere. Geophys. Res. Lett. 34, L22103].

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