|Source||United States Department of Energy Office of Scientific and Technical Information|
|Subject Keyword||CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS ♦ URANUS PLANET ♦ SPECTRA ♦ BALMER LINES ♦ CHEMICAL COMPOSITION ♦ MATHEMATICAL MODELS ♦ METHANE ♦ PLANETARY ATMOSPHERES ♦ QUADRUPOLES ♦ ALKANES ♦ ATMOSPHERES ♦ HYDROCARBONS ♦ MULTIPOLES ♦ ORGANIC COMPOUNDS ♦ PLANETS ♦ Astrophysics & Cosmology- Planetary Phenomena|
|Abstract||Spectra of Uranus' S3(0) and S3(1) H/sub 2/ quadrupole lines, obtained during the 1978-1980 apparitions, are analyzed, and are found to require the presence of a deep cloud. Modifications of the Baines and Bergstralh (1986) standard model, including an additional haze layer above the 16-km-am H/sub 2/ level which contains strongly absorbing particles, are needed to fit the observations. For a Rayleigh phase function, such a haze (uniformly mixed with the gas above this level) would have an absorption optical depth of 0.16 and a single scattering particle albedo of 0.30. This modification would imply a fraction of normal H/sub 2/ equal to 0.25 + or - 0.10, in agreement with the Baines and Bergstralh standard model. 35 references.|
|Learning Resource Type||Article|
|Publisher Place||United States|
|Organization||Texas Univ., Austin|
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