Giant impacts stochastically change the internal pressures of terrestrial planets

  title={Giant impacts stochastically change the internal pressures of terrestrial planets},
  author={Simon J. Lock and Sarah T. Stewart},
  journal={Science Advances},
Pressure changes due to giant impacts require reinterpretation of the geochemical tracers of accretion. Pressure is a key parameter in the physics and chemistry of planet formation and evolution. Previous studies have erroneously assumed that internal pressures monotonically increase with the mass of a body. Using smoothed particle hydrodynamics and potential field method calculations, we demonstrate that the hot, rapidly rotating bodies produced by giant impacts can have much lower internal… 

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