Edwin Kite: Sub-Neptune atmospheres and the transition from Sub-Neptunes to Super-Earths
ExoplanetsIII Heidelberg - HeidelbergDec 15, 2020
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At R < 4 R_Earth, most confirmed exoplanets are sub-Neptunes: worlds in warm orbits with ~2 R_Earth < R < ~3 R_Earth. Strong indirect evidence implies that these sub-Neptunes have massive silicate layers that are thermally blanketed by >10^3 km-deep hydrogen-dominated atmospheres. Thus, sub-Neptunes are mostly magma by mass and ...