Computer Science
Scientific paper
Jun 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988icar...74..424r&link_type=abstract
Icarus (ISSN 0019-1035), vol. 74, June 1988, p. 424-445.
Computer Science
34
Atmospheric Chemistry, Haze, Methane, Neptune Atmosphere, Photochemical Reactions, Atmospheric Models, Stratosphere, Neptune, Methane, Photochemistry, Haze, Production Rate, Models, Flux, Numerical Methods, Atmosphere, Stratosphere, Mixing, Flux, Latitude, Photolysis, Homopause, Acetylene, Ethane, Abundance, Hydrocarbons, Condensation, Tropopause, Optical Properties, Depth, Visible Wavelengths, Infrared, Comparisons, Aerosols, Procedure, Ice, Vapor Pressure
Scientific paper
The Neptune stratosphere's methane photochemistry is presently studied by means of a numerical model in which the observed mixing ratio of methane prompts photolysis near the CH4 homopause. Haze generation by methane photochemistry has its basis in the formation of hydrocarbon ices and polyacetylenes; the hazes can furnish the requisite aerosol haze at the appropriate pressure levels required by observations of Neptune in the visible and near-IR. Comparisons of model predictions with Uranus data indicate a lower ratio of polyacetylene production to hydrocarbon ice, as well as a lower likelihood of UV postprocessing of the acetylene ice to polymers on Neptune, compared to Uranus.
Atreya Sushil K.
Romani Paul N.
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