A seven-planet resonant chain in TRAPPIST-1

  title={A seven-planet resonant chain in TRAPPIST-1},
  author={R. Luger and M. Sestovic and E. Kruse and S. Grimm and B. Demory and E. Agol and {\'E}. Bolmont and D. Fabrycky and C. S. Fernandes and V. Grootel and A. Burgasser and M. Gillon and J. Ingalls and E. Jehin and S. Raymond and F. Selsis and A. H. Triaud and T. Barclay and G. Barentsen and S. Howell and L. Delrez and J. Wit and D. Foreman-Mackey and D. L. Holdsworth and J. Leconte and S. Lederer and M. Turbet and Y. Almleaky and Z. Benkhaldoun and P. Magain and B. Morris and K. Heng and D. Queloz},
  journal={Nature Astronomy},
  • R. Luger, M. Sestovic, +30 authors D. Queloz
  • Published 2017
  • Physics
  • Nature Astronomy
  • The TRAPPIST-1 system is the first transiting planet system found orbiting an ultra-cool dwarf star. At least seven planets similar to Earth in radius and in mass were previously found to transit this host star. Subsequently, TRAPPIST-1 was observed as part of the K2 mission and, with these new data, we report the measurement of an 18.764 d orbital period for the outermost planet, TRAPPIST-1h, which was unconstrained until now. This value matches our theoretical expectations based on Laplace… CONTINUE READING
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