Spin-orbital Tidal Dynamics and Tidal Heating in the TRAPPIST-1 Multiplanet System

@article{Makarov2018SpinorbitalTD,
  title={Spin-orbital Tidal Dynamics and Tidal Heating in the TRAPPIST-1 Multiplanet System},
  author={Valeri V. Makarov and Ciprian T. Berghea and Michael Efroimsky},
  journal={The Astrophysical Journal},
  year={2018},
  volume={857}
}
We perform numerical simulations of the TRAPPIST-1 system of seven exoplanets orbiting a nearby M dwarf, starting with a previously suggested stable configuration. The long-term stability of this configuration is confirmed, but the motion of planets is found to be chaotic. The eccentricity values are found to vary within finite ranges. The rates of tidal dissipation and tidal evolution of orbits are estimated, assuming an Earth-like rheology for the planets. We find that under this assumption… 

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  • J. Wright
  • Geology, Physics
    Research Notes of the AAS
  • 2018
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