Abstract: Observational data on the atmospheres of the Galilean satellites of Jupiter, primarily Io, are reviewed. Io's sodium and hydrogen clouds are discussed along with searches for other species associated with Io. The supply and loss of neutral species to and from Io's clouds are considered, and models for the ionosphere of Io detected by Pioneer 10 are examined. Information and speculation concerning possible atmospheres of Europa, Ganymede, and Callisto are briefly summarized. The suggestion is noted that Ganymede could conceivably maintain a significant (of the order of 1 microbar) atmosphere consisting in large part of oxygen.
Publication Year: 1977
Publication Date: 1977-01-01
Language: en
Type: article
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