New Constraints on Gliese 876—Exemplar of Mean-motion Resonance

  title={New Constraints on Gliese 876—Exemplar of Mean-motion Resonance},
  author={Sarah Millholland and Gregory Laughlin and Johanna K. Teske and Rebecca P. Butler and Jennifer L. Burt and Bradford Holden and Steven S. Vogt and Jeffrey B. Crane and Stephen A. Shectman and I. Thompson},
  journal={The Astronomical Journal},
  • Sarah Millholland, Gregory Laughlin, +7 authors I. Thompson
  • Published 2018
  • Physics
  • The Astronomical Journal
  • Gliese 876 harbors one of the most dynamically rich and well-studied exoplanetary systems. The nearby M4V dwarf hosts four known planets, the outer three of which are trapped in a Laplace mean-motion resonance. A thorough characterization of the complex resonant perturbations exhibited by the orbiting planets, and the chaotic dynamics therein, is key to a complete picture of the system's formation and evolutionary history. Here we present a reanalysis of the system using six years of new radial… CONTINUE READING