The abundances of ethane and acetylene in the atmospheres of Jupiter and Saturn

Details The abundances of ethane and acetylene in the atmospheres of Jupiter and Saturn The abundances of ethane and acetylene in the atmospheres of Jupiter and Saturn

Mar 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986icar...65..257n&link_type=abstract

Icarus (ISSN 0019-1035), vol. 65, Feb.-Mar. 1986, p. 257-263.

Computer Science

48

Abundance, Acetylene, Atmospheric Composition, Ethane, Jupiter Atmosphere, Saturn Atmosphere, Atmospheric Models, Gas Transport, Infrared Spectra, Stratosphere, Planets, Giant Planets, Abundance, Ethane, Acetylene, Atmosphere, Iris, Spectra, Infrared, Wavelengths, Stratosphere, Models, Voyager Missions, Thermal Properties, Density, Mixing, Theoretical Studies, Photochemistry, Transport, Emissions, Infrared Interferometer Spectrometer, Abundance

Scientific paper

Infrared spectra near 780 cm-1 of Jupiter and Saturn have been obtained to determine the stratospheric abundances of ethane (C2H6) and acetylene (C2H2). Atmospheric models using Voyager thermal profiles and density profiles with constant mixing ratios result in the mixing ratios, X(C2H2) = 1.0(±0.3)×10-7 and X(C2H6) = 5.5(±1.5)×10-6 for Jupiter. The results for Saturn are X(C2H2) = 3.0(±1.0)×10-7 and X(C2H6) = 7.0(±1.5)×10-6. The ratio of ethane to acetylene, n[C2H6]/n[C2H2], is found to be insensitive to model atmosphere assumptions. The ratio is 55±31 for Jupiter and 23±12 for Saturn from models with uniform mixing ratios.

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