Jupiter's atmospheric composition from the Cassini thermal infrared spectroscopy experiment.
The Composite Infrared Spectrometer observed Jupiter in the thermal infrared during the swing-by of the Cassini spacecraft. Results include the detection of two new stratospheric species, the methyl radical and diacetylene, gaseous species present in the north and south auroral infrared hot spots; determination of the variations with latitude of acetylene and ethane, the latter a tracer of atmospheric motion; observations of unexpected spatial distributions of carbon dioxide and hydrogen cyanide, both considered to be products of comet Shoemaker-Levy 9 impacts; characterization of the morphology of the auroral infrared hot spot acetylene emission; and a new evaluation of the energetics of the northern auroral infrared hot spot.
Department of Astronomy, University of Maryland, College Park, MD 20742, USA. Virgil.G.Kunde.1@gsfc.nasa.gov
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D000114:Acetylene; D001272:Atmosphere; D002245:Carbon Dioxide; D004980:Ethane; D005118:Extraterrestrial Environment; D006838:Hydrocarbons; D006856:Hydrogen Cyanide; D018538:Jupiter; D018531:Spacecraft; D013057:Spectrum Analysis; D013696:Temperature
D006838:Hydrocarbons; D002245:Carbon Dioxide; D006856:Hydrogen Cyanide; D004980:Ethane; D000114:Acetylene