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Hydrogen dimer structures in the far-infrared spectra of Jupiter and SaturnOn the basis of a spectral line shape computation and radiative transfer calculations, it is shown that the unexplained, diminutive structures seen in the Voyager IRIS Jovian spectra near the hydrogen S0(0) and S0(1) rotational frequencies are due to bound-free transitions involving hydrogen dimers. The absorption intensities of these transitions, as well as of the collision-induced background, are given. These dimer structures may possibly prove to be useful for determining the helium/hydrogen ratio and the para-hydrogen fraction in the atmospheres of the outer planets.
Document ID
19840065175
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Frommhold, L.
(Texas, University Austin, TX, United States)
Samuelson, R.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Birnbaum, G.
(National Bureau of Standards Washington, DC, United States)
Date Acquired
August 12, 2013
Publication Date
August 15, 1984
Publication Information
Publication: Astrophysical Journal, Part 2 - Letters to the Editor
Volume: 283
ISSN: 0004-637X
Subject Category
Lunar And Planetary Exploration
Accession Number
84A47962
Funding Number(s)
CONTRACT_GRANT: NSF AST-83-10786
Distribution Limits
Public
Copyright
Other

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