Astronomy and Astrophysics – Astronomy
Scientific paper
Nov 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989icar...82...67c&link_type=abstract
Icarus (ISSN 0019-1035), vol. 82, Nov. 1989, p. 67-80. Research supported by INSU.
Astronomy and Astrophysics
Astronomy
40
Deuterium Compounds, Infrared Astronomy, Satellite Atmospheres, Titan, Voyager 1 Spacecraft, Abundance, Atmospheric Models, Emission Spectra, Error Analysis
Scientific paper
A reanalysis has been conducted for the 8.6-micron emission feature attributable to both the C3H8 and CH3D bands that was recorded by the Voyager 1 IRIS instrument in the equatorial region of Titan; IRIS spectral observations were compared to the synthetic spectra of an atmospheric model incorporating recent results on equatorial Titan's thermal structure and gas composition. The D/H value of 1.5 (+1.4,-0.5) x 10 to the -4th thus derived is noted to be in excellent agreement with the 1.6-micron CH3D-band estimate by de Bergh et al. (1988), as well as consistent with the revised value of Owen et al. (1986).
Bezard Bruno
Coustenis Athena
Gautier Daniel
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