Astronomy and Astrophysics – Astronomy
Scientific paper
Oct 1977
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977a%26a....61..149g&link_type=abstract
Astronomy and Astrophysics, vol. 61, no. 2, Oct. 1977, p. 149-153.
Astronomy and Astrophysics
Astronomy
8
Atmospheric Temperature, Infrared Astronomy, Planetary Temperature, Saturn Atmosphere, Temperature Profiles, Brightness Temperature, Infrared Spectra, Iterative Solution, Saturn (Planet), Spectrum Analysis
Scientific paper
Thermal profiles of the atmosphere of Saturn have been retrieved by means of an iterative method of inversion from infrared spectral measurements of the planet. The brightness-temperature spectra deduced from these profiles are compared with experimental data and the spectra calculated from the models of Wallace (1975) and Caldwell (1977). Three different thermal profiles are proposed which exhibit a similar stratosphere but differ in the convective range. Their resulting temperature spectra fit well the whole of the available experimental infrared data of Saturn, except for the wavelengths smaller than 7.9 microns. The effective temperature of the retrieved profiles is between 94.6 K and 103.7 K. Accordingly, the internal source of Saturn should be at least equal to 85 percent of the absorbed solar energy.
/Lacombe A.
Gautier Daniel
Revah Isaac
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