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The origin of the Kuiper Belt high–inclination population by Rodney S Gomes is a Physics and Astronomy article available to read on EtoBox.

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I simulate the orbital evolution of the four major planets and a massive primordial planetesimal disk composed of 10 4 objects, which perturb the planets but not themselves. As Neptune migrates by energy and angular momentum exchange with the planetesimals, a large number of primordial Neptune-scattered objects are formed. These objects may experience secular, Kozai, and mean motion resonances that induce temporary decrease of their eccentricities. Because planets are migrating, some planetesimals can escape those resonances while in a low-eccentricity incursion, thus avoiding the return path to Neptune close encounter dynamics. In the end, this mechanism produces stable orbits with high inclination and moderate eccentricities. The population so formed together with the objects coming from the classical resonance sweeping process, originates a bimodal distribution for the Kuiper Belt orbits. The inclinations obtained by the simulations can attain values above 30°and their distribution resembles a debiased distribution for the high-inclination population coming from the real classical Kuiper Belt.

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Author

Rodney S Gomes

Publisher

Elsevier Science; Elsevier ; Elsevier Inc.; Elsevier BV; Oxford University Press (OUP) (ISSN 0019-1035)

Published

2003

Language

EN

Field

Physics and Astronomy (Physical Sciences)