A resonant chain of four transiting, sub-Neptune planets

Sean M. Mills (), Daniel C. Fabrycky, Cezary Migaszewski, Eric B. Ford, Erik Petigura and Howard Isaacson
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Sean M. Mills: The University of Chicago
Daniel C. Fabrycky: The University of Chicago
Cezary Migaszewski: Institute of Physics and CASA*, University of Szczecin
Eric B. Ford: Center for Exoplanets and Habitable Worlds, The Pennsylvania State University
Erik Petigura: University of California at Berkeley
Howard Isaacson: University of California at Berkeley

Nature, 2016, vol. 533, issue 7604, 509-512

Abstract: Transit timing variations of the four-planet system Kepler-223 are used to compute the long-term stability of the system, which has a chain of resonances; the results suggest that inward planetary migration, rather than in situ assembly, is responsible for the formation of some close-in sub-Neptune systems.

Date: 2016
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DOI: 10.1038/nature17445

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