Triton torus and Neptune aurora

Details Triton torus and Neptune aurora Triton torus and Neptune aurora

Sep 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990georl..17.1669c&link_type=abstract

Geophysical Research Letters (ISSN 0094-8276), vol. 17, Sept. 1990, p. 1669-1672. Resaerch supported by NASA.

Physics

14

Auroras, Neptune Atmosphere, Planetary Magnetospheres, Toroidal Plasmas, Triton, H Alpha Line, Hydrogen, Planetary Magnetic Fields, Saturn (Planet), Solar Wind, Titan, Voyager Project

Scientific paper

Triton is shown to be the dominant source of plasma for L equal to or greater than 7 in the magnetosphere of Neptune. Triton maintains a neutral hydrogen torus of average density comparable to a greater than that of the Titan torus at Saturn. The Triton torus may be detectable in H Lyman-alpha emissions. However, the energy source from plasma outward transport and mass loading in the Triton torus is insufficient to explain the Neptune aurora. It is proposed that Neptune's aurora is driven mainly by a solar wind interaction.

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