Primordial N 2 provides a cosmochemical explanation for the existence of Sputnik Planitia, Pluto

  title={Primordial N 2 provides a cosmochemical explanation for the existence of Sputnik Planitia, Pluto},
  author={C. Glein and J. Waite},
  • C. Glein, J. Waite
  • Published 2018
  • Physics
  • Icarus
  • Abstract The presence of N2 in the surface environment of Pluto is critical in creating Pluto's richness of features and processes. Here, we propose that the nitrogen atoms in the N2 observed on Pluto were accreted in that chemical form during the formation of Pluto. We use New Horizons data and models to estimate the amounts of N2 in the following exterior reservoirs: atmosphere, escape, photochemistry, and surface. The total exterior inventory is deduced to be dominated by a glacial sheet of… CONTINUE READING

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    On the Provenance of Pluto's Nitrogen (N2)
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    Observed glacier and volatile distribution on Pluto from atmosphere–topography processes
    • 45
    Reorientation of Sputnik Planitia implies a subsurface ocean on Pluto
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    The composition and origin of Titan's atmosphere
    • 103
    On the possible noble gas deficiency of Pluto’s atmosphere
    • 11
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    The atmosphere of Pluto as observed by New Horizons
    • 137
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    Geological mapping of Sputnik Planitia on Pluto
    • 29
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    Surface compositions across Pluto and Charon
    • 145
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