Dynamical Evolution of the Early Solar System
Abstract
Several properties of the Solar System, including the wide radial spacing of the giant planets, can be explained if planets radially migrated by exchanging orbital energy and momentum with outer disk planetesimals. Neptune's planetesimal-driven migration, in particular, has a strong advocate in the dynamical structure of the Kuiper belt. A dynamical instability is thought to have occurred during the early stages with Jupiter having close encounters with a Neptune-class planet. As a result of the encounters, Jupiter acquired its current orbital eccentricity and jumped inward by a fraction of an au, as required for the survival of the terrestrial planets and from asteroid belt constraints. Planetary encounters also contributed to capture of Jupiter Trojans and irregular satellites of the giant planets. Here we discuss the dynamical evolution of the early Solar System with an eye to determining how models of planetary migration/instability can be constrained from its present architecture.
Cite
@article{arxiv.1807.06647,
title = {Dynamical Evolution of the Early Solar System},
author = {David Nesvorny},
journal= {arXiv preprint arXiv:1807.06647},
year = {2018}
}
Comments
Posted with permission from the Annual Review of Astronomy and Astrophysics, Volume 56 \copyright\ by Annual Reviews, http://www.annualreviews.org. This is a preprint version of the article has not been reviewed, edited, or prepared for publication by Annual Reviews. See http://www.annualreviews.org for the published version