Other
Scientific paper
Oct 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010georl..3719201l&link_type=abstract
Geophysical Research Letters, Volume 37, Issue 19, CiteID L19201
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1
Planetary Sciences: Solar System Objects: Europa, Planetary Sciences: Solar System Objects: Jovian Satellites, Geochemistry: Planetary Geochemistry (5405, 5410, 5704, 5709, 6005, 6008), Planetary Sciences: Solid Surface Planets: Ices
Scientific paper
Laboratory experiments have demonstrated that magnetospheric radiation in the Jovian system drives reaction chemistry in ices at temperatures relevant to Europa and other icy satellites. Here we present new results on thermally-induced reactions at 50-100 K in solid H2O-SO2 mixtures, reactions that take place without the need for a high-radiation environment. We find that H2O and SO2 react to produce sulfur oxyanions, such as bisulfite, that as much as 30% of the SO2 can be consumed through this reaction, and that the products remain in the ice when the temperature is lowered, indicating that these reactions are irreversible. Our results suggest that thermally-induced reactions can alter the chemistry at temperatures relevant to the icy satellites in the Jovian system.
Hudson Reggie L.
Loeffler Mark J.
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