The chemical effects of auroral oxygen precipitation at Jupiter

Details The chemical effects of auroral oxygen precipitation at Jupiter The chemical effects of auroral oxygen precipitation at Jupiter

Nov 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992icar..100..260c&link_type=abstract

Icarus (ISSN 0019-1035), vol. 100, no. 1, p. 260-270.

Physics

13

Atmospheric Chemistry, Auroral Zones, Chemical Effects, Ionospheric Ion Density, Jupiter Atmosphere, Oxygen Atoms, Particle Precipitation, Electron Density Profiles, Heavy Ions, Ionospheric Electron Density, Thermosphere

Scientific paper

A numerical model of the auroral ionosphere and thermosphere of Jupiter, which includes odd oxygen species, is presented. Density profiles of neutral species O, OH, and H2O and the ion species H2(+), H3(+), H(+), H2O(+), H3O(+), O(+), and OH(+) are calculated. The total neutral odd oxygen density is found to be about 10 exp 5/cu cm near the auroral ionosphere peak. The major ionospheric ion, H(+) reacts rapidly with both O and H2O and the presence of these species in the model calculations significantly reduces the H(+) density and thus the electron density. The chemical lifetime against reaction of H(+) with odd oxygen is about 1000 s near the peak, whereas the radiative recombination lifetime is roughly 10,000 s.

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