Jupiter: Its Infrared Spectrum from 16 to 40 Micrometers

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Science  29 Aug 1975:
Vol. 189, Issue 4204, pp. 720-722
DOI: 10.1126/science.189.4204.720


Spectral measurements of the thermal radiation from Jupiter in the band from 16 to 40 micrometers are analyzed under the assumption that pressure-broadened molecular hydrogen transitions are responsible for the bulk of the infrared opacity over most of this spectral interval. Both the vertical pressure-temperature profile and the molecular hydrogen mixing ratio are determined. The derived value ofthe molecular hydrogen mixing ratio, 0.89 ± 0.11, is consistent with the solar value of 0.86.