Nitrogen on Jupiter - A deep atmospheric source

Details Nitrogen on Jupiter - A deep atmospheric source Nitrogen on Jupiter - A deep atmospheric source

Oct 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981jgr....86.9895p&link_type=abstract

Journal of Geophysical Research, vol. 86, Oct. 20, 1981, p. 9895-9899.

Physics

23

Jupiter Atmosphere, Nitrogen, Planetary Composition, Dynamic Stability, Gas Composition, Kinetic Equations, Mass Spectrometers, Molecular Gases, Temperature Effects, Jupiter, Nitrogen, Source Medium, Atmosphere, Transport, Hydrogen, Iron, Temperatures, Chemistry, Mixing, Abundance, Troposphere, Comparisons, Kinetics, Heterogeneity, Metals, Clouds, Production Rates, Saturn, Condensation, Eddy Effects, Particles, Sedimentation, Distribution

Scientific paper

Kinetic calculations are presented for the transport and stability of molecular nitrogen in the Jupiter atmosphere. Rate constants for the homogeneous gas-phase and heterogeneous iron-catalyzed conversion of N2 into the thermodynamically stable form NH3 are calculated as a function of temperature and hydrogen concentration for various levels in the Jupiter atmosphere. It is shown that vertical motions in the deep Jupiter atmosphere are sufficiently rapid to transport large amounts of N2 from the 900-1700 K levels where it is stable to the cold upper regions. Upper level N2 mixing ratios of 0.6-3 ppmv are predicted in the presence of catalysis and up to 10 ppmv are predicted in its absence, making N2 potentially the most abundant nonequilibrium species in the Jupiter troposphere and detectable by the neutral mass spectrometer to be on board the Galileo Entry Probe.

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