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Pressure-induced absorption by H2 in the atmospheres of Jupiter and SaturnObservations of the S(1) line of the pressure-induced fundamental band of H2 in the spectra of Saturn and Jupiter are analyzed by comparing the observed line shape with predictions of both a reflecting-layer model and a homogeneous-scattering model of the atmospheres. Upper and lower limits are derived for the values of relative intensity that occur between 5000 and 5100 kaysers, the percent absorption due to H2 at 5100 kaysers is estimated, and it is established that methane and ammonia cannot account for the broad absorption attributed to hydrogen. The comparison with the model atmospheres shows that the reflecting-layer model appears to give the best fit to the Saturn line profile for temperatures near 150 K, while both models provide good fits to the Jupiter data, but for widely differing temperatures. Difficulties encountered in determining the true continuum level, especially for Jupiter, are discussed.
Document ID
19760045138
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Martin, T. Z.
(Hawaii Univ. Honolulu, HI, United States)
Cruikshank, D. P.
(Hawaii Univ. Honolulu, HI, United States)
Pilcher, C. B.
(Hawaii Univ. Honolulu, HI, United States)
Sinton, W. M.
(Hawaii, University Honolulu, Hawaii, United States)
Date Acquired
August 8, 2013
Publication Date
March 1, 1976
Publication Information
Publication: Icarus
Volume: 27
Subject Category
Lunar And Planetary Exploration
Accession Number
76A28104
Funding Number(s)
CONTRACT_GRANT: NGL-12-001-057
Distribution Limits
Public
Copyright
Other

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