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- W1994317713 abstract "Recently, the Cassini spacecraft has detected ongoing geologic activity near the south pole of Saturn's moon Enceladus. In contrast, the satellite's north-polar region is heavily cratered and appears to have been geologically inactive for a long time. We propose that this hemispheric dichotomy is caused by interior dynamics with degree-one convection driving the south-polar activity. We investigate a number of core sizes and internal heating rates for which degree-one convection occurs. The numerical simulations imply that a core radius of less than 100±20 km and an energy input at a rate of 3.0 to 5.5 GW would be required for degree-one convection to prevail. This is within the range of the observed thermal power release near Enceladus' south pole. Provided that Enceladus is not fully differentiated, degree-one convection is found to be a viable mechanism to explain Enceladus' hemispheric dichotomy." @default.
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- W1994317713 date "2007-11-01" @default.
- W1994317713 modified "2023-10-17" @default.
- W1994317713 title "Degree-one convection and the origin of Enceladus' dichotomy" @default.
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- W1994317713 doi "https://doi.org/10.1016/j.icarus.2007.05.001" @default.
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