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, 305 (5690), 1582-6

Jupiter's Atmospheric Composition From the Cassini Thermal Infrared Spectroscopy Experiment

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Jupiter's Atmospheric Composition From the Cassini Thermal Infrared Spectroscopy Experiment

V G Kunde et al. Science.

Abstract

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.

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