Astronomy and Astrophysics – Astronomy
Scientific paper
Jun 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009cemda.104...39g&link_type=abstract
Celestial Mechanics and Dynamical Astronomy, Volume 104, Issue 1-2, pp. 39-51
Astronomy and Astrophysics
Astronomy
5
Kuiper Belt, Planetary Migration, Solar System Dynamics, Planetesimal Disk, Nice Model, Scattered Disk, Kuiper Belt: Evaders, Kuiper Belt: Cold Population
Scientific paper
I review the work that has been done so far aiming at the understanding of the origin of the Kuiper belt. Three peculiar characteristics of the Kuiper belt are used as constraints for the formation models. These are the unexpected dynamical excitation of the orbits, the Kuiper belt outer edge near the 1:2 resonance with Neptune and the mass paucity of the belt. Among the various scenarios proposed, those based on a primordial planetary migration give the best results. In particular, the Nice model is analyzed with respect to its coherence with the present characteristics of the belt. Special attention is given to the controversy on the origin of the Kuiper belt cold population.
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