Temperature anisotropy of the Jovian sulfur nebula

Details Temperature anisotropy of the Jovian sulfur nebula Temperature anisotropy of the Jovian sulfur nebula

Sep 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979icar...39..450e&link_type=abstract

Icarus, vol. 39, Sept. 1979, p. 450-458.

Computer Science

6

Atmospheric Temperature, Galilean Satellites, Jupiter Atmosphere, Planetary Nebulae, Sulfur, Anisotropy, Atmospheric Composition, Atmospheric Diffusion, Ionic Collisions, Planetary Magnetospheres, Planetary Radiation, Plasma Clouds, Plasma-Particle Interactions, Rarefied Plasmas, Jupiter, Temperatures, Sulfur, Anisotropy, Ionization, Ions, Thickness, Clouds, Models, Satellites, Io, Magnetosphere, Diffusion, Plasmas, Protons, Electrons, Collisions, Energy Sources, Density, Spectrum, Pioneer 10, Radiation, Hy

Scientific paper

The apparent paradox between the reported observation of a 3-eV gyration energy of Jupiter's ionized sulfur nebula and its observed thickness is discussed. An observation of the thickness of the cloud taken nearly edge-on is presented and shown to imply a large bounce-averaged anisotropy of the sulfur in temperature. These observations are used to construct a self-consistent model of the sulfur nebula in which the sulfur ions are injected by Io as ions and remain sufficiently collisionless in the magnetosphere to maintain the anisotropy for a time longer than a characteristic diffusion time. It is also shown that the proton-electron plasma is collisionally thermalized and provides an adequate means of tapping the rotational energy of the planet to provide the power radiated in the sulfur lines.

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