Powering prolonged hydrothermal activity inside Enceladus

  title={Powering prolonged hydrothermal activity inside Enceladus},
  author={Ga{\"e}l Choblet and Gabriel Tobie and Christophe Sotin and Marie Běhounkov{\'a} and Ondřej {\vC}adek and Frank Postberg and Ondřej Sou{\vc}ek},
  journal={Nature Astronomy},
Geophysical data from the Cassini spacecraft imply the presence of a global ocean underneath the ice shell of Enceladus1, only a few kilometres below the surface in the South Polar Terrain2–4. Chemical analyses indicate that the ocean is salty5 and is fed by ongoing hydrothermal activity6–8. In order to explain these observations, an abnormally high heat power (>20 billion watts) is required, as well as a mechanism to focus endogenic activity at the south pole9,10. Here, we show that more than… 
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