Computer Science
Scientific paper
Dec 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007icar..192..491k&link_type=abstract
Icarus, Volume 192, Issue 2, p. 491-502.
Computer Science
12
Scientific paper
The initial interpretation of Galileo data from Jupiter's moon, Io, suggested eruption temperatures ⩾1600°C. Tidal heating models have difficulties explaining Io's prodigious heat flow if the mantle is >1300°C, although we suggest that temperatures up to ˜1450°C may be possible. In general, Io eruption temperatures have been overestimated because the incorrect thermal model has been applied. Much of the thermal emission from high-temperature hot spots comes from lava fountains but lava flow models were utilized. We apply a new lava fountain model to the highest reported eruption temperature, the SSI observation of the 1997 eruption at Pillan. This resets the lower temperature limit for the eruption from ˜1600 to ˜1340°C. Additionally, viscous heating of the magma may have increased eruption temperature by ˜50 100°C as a result of the strong compressive stresses in the ionian lithosphere. While further work is needed, it appears that the discrepancy between observations and interior models is largely resolved.
Davies Ashley Gerard
Jaeger Windy
Keszthelyi Laszlo
Milazzo Moses
Mitchell Karl L.
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