Enceladus: Present internal structure and differentiation by early and long-term radiogenic heating

By Gerald Schubert, J. Anderson, B. Travis, J. Palguta. 2007

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Enceladus: An Active Ice World in the Saturn System (2013, background): “Funding and spacecraft health permitting, the Cassini mission will continue through mid-2017, ending with destruction of the spacecraft in Saturn’s atmosphere when its fuel is exhausted (Seal & Buffington 2009).”
What makes a planet habitable? (2009, background): “Taken together, the evidence strongly suggests that Enceladus’ interior is at least partially differentiated into a silicate-metal core overlain by a water-ice liquid shell (Schubert et al. 2007).”
The primordial nucleus of comet 67P/Churyumov-Gerasimenko (2015, background): “The effect of short-lived radionuclides on the interior structure of regular Saturnian satellites have been explored, e.g., by CastilloRogez et al. (2007, 2009) for Iapetus, by Czechowski (2012) for Rhea, and by Schubert et al. (2007) for Enceladus.”
High heat flow from Enceladus' south polar region measured using 10–600 cm−1 Cassini/CIRS data (2011, methodology): “Initial analysis of midinfrared data (600 to 1100 cm −1 ) taken by focal plane 3 (FP3) of the Composite Infrared Spectrometer (CIRS) onboard Cassini indicated that the endogenic power of Enceladus’ south polar region was 5.8 ± 1.9 GW [Spencer et al., 2006], much higher than the expected radiogenical”
Long-Term Stability of a Subsurface Ocean on Enceladus (2007, background): “(Schubert et al., 2007) and its material properties vary sub-”