On the D/C ratio in the atmosphere of Uranus

Details On the D/C ratio in the atmosphere of Uranus On the D/C ratio in the atmosphere of Uranus

Jan 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982icar...49...27e&link_type=abstract

Icarus, vol. 49, Jan. 1982, p. 27-34.

Computer Science

3

Atmospheric Composition, Atmospheric Models, Atmospheric Scattering, Carbon, Deuterium, Uranus Atmosphere, Abundance, Enrichment, Hydrogen, Neptune Atmosphere, Planetary Evolution, Uranus, Atmosphere, Mixing Ratio, Scattering, Neptune, Abundance, Models, Procedure, Techniques, Deuterium, Carbon, Methane, Depletion, Enrichment, Layers

Scientific paper

A method for deriving mixing ratios in the outer planets, mostly independent of scattering processes, is applied to Uranus. It is shown that scattering processes play a major role in line formation in the atmospheres of Uranus and Neptune; consequently, abundance ratios derived from a reflecting-layer model can be questionable. Using the method, a D/C ratio less than 0.006 is derived for Uranus, which is significantly smaller than the result on Jupiter. The simplest explanation implies a C/H enrichment by at least a factor of 6 relative to the solar value.

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