The plumes of Titan

Details The plumes of Titan The plumes of Titan

Oct 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982jgr....87.8091e&link_type=abstract

Journal of Geophysical Research, vol. 87, Oct. 1, 1982, p. 8091-8103.

Physics

Plasma Physics

41

Earth Magnetosphere, Magnetohydrodynamics, Plasma Density, Rotating Plasmas, Satellite Atmospheres, Titan, Electron Density (Concentration), Ionospheres, Plasma Acceleration, Plasma Physics, Plumes, Solar Wind, Standing Waves, Ultraviolet Radiation, Voyager 1 Spacecraft

Scientific paper

The plasma density enhancements observed during the Voyager 1 Titan encounter are interpreted in terms of a single plume of plasma wrapped around Saturn by corotation. Consideration is given to the radial motions of the plume driven by fluctuations in solar wind pressure and the dispersal of the plasma by the centrifugal interchange instability, by heating, and by azimuthal acceleration. It is shown that Saturn cannot readily impose corotation directly on the plume and, incidentally, that the total dissipation associated with the Titan-magnetosphere interaction is insufficient to supply the power to produce the observed Titan ultraviolet airglow. A pickup velocity of 8 km/s is inferred on the basis of the observed velocity and a standing wave model. It is found that the Voyager plasma observations are consistent with the predictions of the model.

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