Dynamical evolution and spin-orbit resonances of potentially habitable exoplanets. The case of GJ 667C

@inproceedings{Makarov2013DynamicalEA,
  title={Dynamical evolution and spin-orbit resonances of potentially habitable exoplanets. The case of GJ 667C},
  author={Valeri V. Makarov and Ciprian T. Berghea},
  year={2013}
}
We investigate the dynamical evolution of the potentially habitable superearth GJ 667Cc in the multiple system of at least two exoplanets orbiting a nearby M dwarf, paying special attention to its spin-orbital state. The published radial velocities for this star are re-analyzed and evidence is found for additional periodic signals, which could be taken for two additional planets on eccentric orbits. Such systems are not dynamically viable and break up quickly in numerical integrations. The… 

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References

SHOWING 1-3 OF 3 REFERENCES
Icarus, submitted This preprint was prepared with the AAS LTEX macros v5.2
  • 1999
Submitted to : Icarus Efroimsky , M . & Lainey , V .
  • 2007
Fundamentals of celestial mechanics