Other
Scientific paper
Mar 1980
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980icar...41..423t&link_type=abstract
Icarus, vol. 41, Mar. 1980, p. 423-429.
Other
10
Abundance, Atmospheric Composition, Deuterium, Uranus Atmosphere, Atmospheric Attenuation, Line Spectra, Methane, Spectrum Analysis, Uranus, Atmosphere, Deuterium/Hydrogen, Observations, Wavelengths, Spectrum, Data, Analysis, Comparisons, Methane, Data Reduction, Procedure, Models, Aerosols, Intensity
Scientific paper
Observations of Uranus during the 1975, 1976, and 1978 apparitions reveal a weak absorption at the wavelength of the R5(1) line of HD with equivalent width 1.0 + or - 0.4 mA. The D/H ratio in Uranus' atmosphere implied by this line and other published spectra is (0.000048 + or - 0.000015), and may not be significantly different from that in the atmospheres of Jupiter and Saturn. In addition, the spectra exhibit two weak absorptions at 6044.76 + or - 0.02 and 6045.54 + or 0.02 A which were not identifiable. No trace of absorption is visible near these wavelengths or near the HD wavelength in a laboratory spectrum of 4.92 km-am CH4 which was obtained in an attempt to identify these absorption features and to verify that the HD feature does not arise from CH4.
Ramsay D. A.
Trafton Larry
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