Tilting Planets during Planet Scattering

  title={Tilting Planets during Planet Scattering},
  author={Gongjie Li},
  journal={The Astrophysical Journal Letters},
  • Gongjie Li
  • Published 29 March 2021
  • Physics, Geology
  • The Astrophysical Journal Letters
Observational constraints on planetary spin axis have recently become possible, and they have revealed a system that favors large spin-axis misalignment, low stellar spin–orbit misalignment, and high eccentricity. To explain the origin of such systems, we propose a mechanism that could tilt the planetary spin axis during planet–planet scattering, which is a natural outcome of in situ formation and disk migration. Specifically, we show that spin–orbit resonances could occur for a short time… 
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