Origin of the peculiar eccentricity distribution of the inner cold Kuiper belt

•The eccentricity distribution of the cold Kuiper belt population is the mean motion resonance sweeping.•Our result argues for a slow final phase of migration of planet Neptune.•Neptune’s orbit had to be moderately eccentric when the planet was at 28.5–29.5AU.•Our result supports models considering...

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Bibliographic Details
Published in:Icarus (New York, N.Y. 1962) N.Y. 1962), 2014-04, Vol.232, p.81-87
Main Authors: Morbidelli, A., Gaspar, H.S., Nesvorny, D.
Format: Article
Language:English
Subjects:
Cold working
Eccentric orbits
Eccentricity
Kuiper belt
Neptune
Orbitals
Origin, Solar System
Planetary dynamics
Planetary evolution
Resonances, orbital
Stability
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Summary:•The eccentricity distribution of the cold Kuiper belt population is the mean motion resonance sweeping.•Our result argues for a slow final phase of migration of planet Neptune.•Neptune’s orbit had to be moderately eccentric when the planet was at 28.5–29.5AU.•Our result supports models considering a phase of orbital excitation of the giant planets. Dawson and Murray-Clay (Dawson and Murray-Clay [2012]. Astrophys. J., 750, 43) pointed out that the inner part of the cold population in the Kuiper belt (that with semi major axis a
ISSN:0019-1035
1090-2643
DOI:10.1016/j.icarus.2013.12.023