Indications of supersaturated stratospheric methane in Neptune from its atmospheric thermal profile

Details Indications of supersaturated stratospheric methane in Neptune from its atmospheric thermal profile Indications of supersaturated stratospheric methane in Neptune from its atmospheric thermal profile

Jan 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979icar...37..236c&link_type=abstract

Icarus, vol. 37, Jan. 1979, p. 236-248.

Physics

3

Methane, Neptune Atmosphere, Stratosphere, Supersaturation, Temperature Profiles, Atmospheric Temperature, Heat Sources, Infrared Absorption, Upper Atmosphere, Methane, Neptune, Atmosphere, Thermal Properties, Infrared, Temperatures, Heat Source, Opacity, Wavelengths, Hydrogen, Absorption Spectra, Nitrogen, Helium

Scientific paper

An iterative inversion method is used to retrieve the thermal structure of Neptune from available infrared measurements. The most plausible thermal profile leads to an effective temperature of 58.4 K, implying the presence of an internal heat source equal to about 1.6 times the absorbed solar power. The interpretation of Neptunian infrared measurements in the 8-micron range requires a very strong supersaturation of CH4 in the upper atmosphere of the planet.

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