Hot-atom synthesis of organic compounds on Jupiter

Details Hot-atom synthesis of organic compounds on Jupiter Hot-atom synthesis of organic compounds on Jupiter

Sep 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979apj...232l.135l&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor, vol. 232, Sept. 1, 1979, p. L135-L137.

Astronomy and Astrophysics

Astrophysics

2

Hot Atoms, Jupiter Atmosphere, Organic Compounds, Photolysis, Reaction Kinetics, Ultraviolet Radiation, Abundance, Analog Simulation, Ethane, Ethyl Compounds, Gas Analysis, Jupiter, Organic Compounds, Photochemistry, Atmosphere, Photolysis, Hydrogen Sulfide, Methane, Sulfur, Methyl Mercaptan, Heat, Ethane, Ultraviolet Radiation, Dissociation, Pressure, Mixing

Scientific paper

Results of recent laboratory 'simulations' of photochemical processes on Jupiter are combined with available data on mixing rates and exposure times in the Jovian atmosphere to give quantitative predictions of the rate at which hot-atom reactions produce organic molecules. It is shown that abstraction reactions on methane by hot H atoms from solar UV photolysis of H2S will produce no more than 4 times 10 to the -17th power g/sq cm/sec for a steady-state mole fraction of total organics of approximately 10 to the -16th power. This is roughly 10 to the 7th power times less than the limit of detection of the most sensitive gas analysis experiments ever flown on a spacecraft. By far the most common organic molecule produced by this mechanism is CH3SH, methyl mercaptan, which is produced at a rate at least 600 times smaller than the rate of production of ethane by direct photolysis of CH4 at high altitudes.

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