Spacing of Kepler Planets: Sculpting by Dynamical Instability

@article{Pu2015SpacingOK,
  title={Spacing of Kepler Planets: Sculpting by Dynamical Instability},
  author={Bonan Pu and Yanqin Wu},
  journal={arXiv: Earth and Planetary Astrophysics},
  year={2015}
}
  • Bonan Pu, Yanqin Wu
  • Published 19 February 2015
  • Physics, Geology
  • arXiv: Earth and Planetary Astrophysics
We study the orbital architecture of multi-planet systems detected by the Kepler transit mission using N-body simulations, focusing on the orbital spacing between adjacent planets in systems showing four or more transiting planets. We find that the observed spacings are tightly clustered around 12 mutual Hill radii, when transit geometry and sensitivity limits are accounted for. In comparison, dynamical integrations reveal that the minimum spacing required for systems of similar masses to… 

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