Neptune's 5:2 Resonance in the Kuiper Belt

  title={Neptune's 5:2 Resonance in the Kuiper Belt},
  author={Renu Malhotra and Lei Lan and Kathryn Volk and Xianyu Wang},
  journal={The Astronomical Journal},
Observations of Kuiper Belt objects (KBOs) in Neptune’s 5:2 resonance present two puzzles: this third-order resonance hosts a surprisingly large population, comparable to the prominent populations of Plutinos and Twotinos in the first order 3:2 and 2:1 resonances, respectively; second, their eccentricities are concentrated near 0.4. To shed light on these puzzles, we investigate the phase space near this resonance with use of Poincaré sections of the circular planar restricted three-body model… 

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