Physics
Scientific paper
Jan 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992georl..19...79b&link_type=abstract
Geophysical Research Letters (ISSN 0094-8276), vol. 19, Jan. 24, 1992, p. 79-82. Research supported by USIBSF.
Physics
30
Abundance, Jupiter Atmosphere, Oxygen Ions, Planetary Magnetospheres, Toroidal Plasmas, Voyager 1 Spacecraft, Io, Radial Distribution, Ultraviolet Spectra
Scientific paper
From a synthesis of data from the Plasma-Science and Ultraviolet-Science instruments on Voyager 1 a radial profile is presented of O(2+) abundance between 4.9 and 42 Jovian radii. A sharp rise is noted in O(2+) mixing ratio near 7.5 Jovian radii, coincident with a sharp rise in effective electron temperature at the outer boundary of the Io plasma torus. Beyond 8.5 Jovian radii the O(2+) mixing ratio is found to be roughly constant which indicates freezing of the ionization prevailing at the outer edge of the hot torus.
Bagenal Fran
Eviatar Aharon
McNutt Ralph L. Jr.
Schreier Ron
Shemansky Don E.
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