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Keyword: orbital scattering ×Clear all

2 claims from 1 paper

1. Physics and Astronomy › Astro and Planetary Science

   NEPTUNE'S WILD DAYS: CONSTRAINTS FROM THE ECCENTRICITY DISTRIBUTION OF THE CLASSICAL KUIPER BELT

   Dawson and Murray-Clay · The Astrophysical Journal · 2012

   The authors test a model where Neptune delivers hot Kuiper belt objects into the classical region without over-exciting the cold population, and use this to constrain Neptune's past orbital history.

   Unchecked2 claims
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   1. UncheckedOnly if Neptune was scattered to a moderately eccentric orbit (e > 0.15) then migrated 1-6 AU does the model fit the Kuiper belt's orbits.“We rule out much of parameter space, except where Neptune is scattered to a moderately eccentric orbit (e > 0.15) and subsequently migrates a distance Delta aN=1-6 AU.”
   2. UncheckedNeptune's high eccentricity by itself does not create a chaotic sea of unstable orbits in the classical Kuiper belt, according to the authors' exploration.“We find that Neptune's high eccentricity alone does not generate a chaotic sea in the classical region.”