Sublimation-driven convection in Sputnik Planitia on Pluto.

  title={Sublimation-driven convection in Sputnik Planitia on Pluto.},
  author={Adrien Morison and St{\'e}phane Labrosse and Ga{\"e}l Choblet},
  volume={600 7889},
Sputnik Planitia is a nitrogen-ice-filled basin on Pluto1. Its polygonal surface patterns2 have been previously explained as a result of solid-state convection with either an imposed heat flow3 or a temperature difference within the 10-km-thick ice layer4. Neither explanation is satisfactory, because they do not exhibit surface topography with the observed pattern: flat polygons delimited by narrow troughs5. Internal heating produces the observed patterns6, but the heating source in such a… 
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