JUMPING NEPTUNE CAN EXPLAIN THE KUIPER BELT KERNEL

@article{Nesvorn2015JUMPINGNC,
  title={JUMPING NEPTUNE CAN EXPLAIN THE KUIPER BELT KERNEL},
  author={David Nesvorn{\'y}},
  journal={The Astronomical Journal},
  year={2015},
  volume={150}
}
  • D. Nesvorný
  • Published 19 June 2015
  • Geology, Physics
  • The Astronomical Journal
The Kuiper Belt is a population of icy bodies beyond the orbit of Neptune. A particularly puzzling and up-to-now unexplained feature of the Kuiper Belt is the so-called “kernel,” a concentration of orbits with semimajor axes a ≃ 44 AU, eccentricities e ∼ 0.05, and inclinations i < 5 ° ?> . Here we show that the Kuiper Belt kernel can be explained if Neptune’s otherwise smooth migration was interrupted by a discontinuous change of Neptune’s semimajor axis when Neptune reached ≃28 AU. Before the… 

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