More than 20 GW of power are necessary to balance the heat emitted by Enceladus and avoid the freezing of its internal ocean. A very porous core undergoing tidal heating can generate the required power to maintain a liquid ocean and drive hydrothermal activity.
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References
Porco, C. C. et al. Science 311, 1393–1401 (2006).
Spencer, J. R. et al. Science 311, 1401–1405 (2006).
Postberg, F. et al. Nature 459, 1098–1101 (2009).
Thomas, P. C. et al. Icarus 264, 37–47 (2016).
Nimmo, F. et al. in Enceladus and the Icy Moons of Saturn (eds Schenk, P. M. et al.) (Univ. Arizona Press, Tucson, in the press).
Choblet, G. et al. Nat. Astron. https://doi.org/10.1038/s41550-017-0289-8 (2017).
Roberts, J. H. & Nimmo, F. Icarus 194, 675–689 (2008).
Hsu, H.-W. et al. Nature 519, 207–209 (2015).
Waite, J. H. et al. Science 356, 155–159 (2017).
Roberts, J. H. Icarus 258, 54–66 (2015).
Travis, B. J. & Schubert, G. Icarus 250, 32–42 (2015).
Fuller, J., Luan, J. & Quataert, E. Mon. Not. R. Astron. Soc. 458, 3867–3879 (2016).
Hemingway, D. et al. in Enceladus and the Icy Moons of Saturn (eds Schenk, P. M. et al.) (Univ. Arizona Press, Tucson, in the press).
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Nimmo, F. Keeping the ocean warm. Nat Astron 1, 821–822 (2017). https://doi.org/10.1038/s41550-017-0337-4
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DOI: https://doi.org/10.1038/s41550-017-0337-4
