Hydrogen dimer structures in the far-infrared spectra of Jupiter and Saturn

Details Hydrogen dimer structures in the far-infrared spectra of Jupiter and Saturn Hydrogen dimer structures in the far-infrared spectra of Jupiter and Saturn

Aug 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984apj...283l..79f&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor (ISSN 0004-637X), vol. 283, Aug. 15, 1984, p. L79-L82. NASA-supported rese

Astronomy and Astrophysics

Astronomy

32

Astronomical Spectroscopy, Hydrogen, Infrared Astronomy, Jupiter Atmosphere, Saturn Atmosphere, Absorption Spectra, Dimers, Far Infrared Radiation

Scientific paper

On 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.

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