Galileo's view of Io

Details Galileo's view of Io Galileo's view of Io

Mar 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997lpi....28..889m&link_type=abstract

Conference Paper, 28th Annual Lunar and Planetary Science Conference, p. 889.

Other

Io, Galileo Spacecraft, Greenhouse Effect, Silicates, Lava, Ground Stations, Reflecting Telescopes

Scientific paper

Past and ongoing studies of Io provide the basis for a set of predictions that are here revisited in light of new data from Galileo and ground-based astronomical telescopes. The following predictions have been confirmed and will be discussed in detail: (1) Loki remains the dominant complex of thermal anomalies, and has undergone changes in appearance. (2) Temperature distribution of material is consistent with previous ground based models and Voyager. (3) Some areas viewed by Voyager are still volcanically active, but others have decreased their activity; new regions not determined to be active by Voyager are also present. (4) High temperatures (above 1000 K) were observed in the 1-5 m region that cooled rapidly, confirming the prescence of magmas other than sulfur. (5) Larger, cooler areas are associated with the high temperature observations. (6) The size temperature distributions of thermal areas is consistent with cooling silicate lavas. (7) Away from the thermal anomalies, the nighttime temperatures are higher than predicted by homogeneous thermal physical models. (8) SO2 gas is concentrated locally in plumes and other vents.

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