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Much of the dynamical structure of the Kuiper belt can be explained if Neptune migrated over several AU, and/or if Neptune was scattered to an eccentric orbit during planetary instability. An outstanding problem with the existing formation…

Earth and Planetary Astrophysics · Physics 2015-08-19 David Nesvorny

Inward migration of giant planets is predicted by hydrodynamical simulations during the gas phase of the protoplanetary disc. The phenomenon is also invoked to explain resonant and near-resonant exoplanetary system structures. The early…

Earth and Planetary Astrophysics · Physics 2021-06-30 Simona Pirani , Anders Johansen , Alexander J. Mustill

We perform simulations here that include the gravitational effects of the primordial planetesimal belt consisting of ~10^5 massive bodies. In our simulations, Neptune unlocks from resonance with the other giant planets and begins to migrate…

Earth and Planetary Astrophysics · Physics 2024-03-20 Nathan A. Kaib , Alex Parsells , Simon Grimm , Billy Quarles , Matthew S. Clement

We illuminate dynamical properties of Kuiper Belt Objects (KBOs) in the 3:2 (``Plutino'') and 2:1 (``Twotino'') Neptunian resonances within the model of resonant capture and migration. We analyze a series of numerical integrations, each…

Astrophysics · Physics 2009-11-07 E. I. Chiang , A. B. Jordan

Planetary migration is a crucial stage in the early solar system, explaining many observational phenomena and providing constraints on details related to the solar system's origins. This paper aims to investigate the acceleration during…

Earth and Planetary Astrophysics · Physics 2025-10-22 Hailiang Li , Li-Yong Zhou , Xiaoping Zhang

The dynamical structure of the Kuiper belt can be used as a clue to the formation and evolution of the Solar System, planetary systems in general, and Neptune's early orbital history in particular. The problem is best addressed by forward…

Earth and Planetary Astrophysics · Physics 2021-03-03 David Nesvorny

The Kuiper belt is a population of icy bodies beyond the orbit of Neptune. The complex orbital structure of the Kuiper belt, including several categories of objects inside and outside of resonances with Neptune, emerged as a result of…

Earth and Planetary Astrophysics · Physics 2016-07-13 David Nesvorny , David Vokrouhlicky

The current dynamical structure of the Kuiper belt was shaped by the orbital evolution of the giant planets, especially Neptune, during the era following planet formation, when the giant planets may have undergone planet-planet scattering…

Earth and Planetary Astrophysics · Physics 2012-02-29 Schuyler Wolff , Rebekah I. Dawson , Ruth A. Murray-Clay

We explore conventional Neptune migration model with one additional planet of mass at 0.1-2.0 Me. This planet inhabited in the 3:2 mean motion resonance with Neptune during planet migration epoch, and then escaped from the Kuiper belt when…

Earth and Planetary Astrophysics · Physics 2009-08-13 Lun-Wen Yeh , Hsiang-Kuang Chang

Approximately 10-20% of all Kuiper belt objects (KBOs) occupy mean-motion resonances with Neptune. This dynamical configuration likely resulted from resonance capture as Neptune migrated outward during the late stages of planet formation.…

Earth and Planetary Astrophysics · Physics 2015-05-27 Ruth A. Murray-Clay , Hilke E. Schlichting

The spatial distribution of Kuiper belt objects (KBOs) in 2:1 exterior resonance with Neptune constrains that planet's migration history. Numerical simulations demonstrate that fast planetary migration generates a larger population of KBOs…

Astrophysics · Physics 2009-11-10 Ruth A. Murray-Clay , Eugene I. Chiang

The link between the dynamical evolution of the giant planets and the Kuiper Belt orbital structure can provide clues and insight about the dynamical history of the Solar System. The classical region of the Kuiper Belt has two populations…

Earth and Planetary Astrophysics · Physics 2019-12-17 Rafael Ribeiro de Sousa , Rodney Gomes , Alessandro Morbidelli , Ernesto Vieira Neto

The dynamics of the high-inclination Plutinos is systematically studied. We first present the peculiar features of the 2:3 Neptune mean motion resonance (NMMR) for inclined orbits, especially for the correlation of resonant amplitude…

Earth and Planetary Astrophysics · Physics 2015-06-17 Jian Li , Li-Yong Zhou , Yi-Sui Sun

In this Letter, we give new constraints on planet migration. They were obtained under the assumption that Saturn's current obliquity is due to a capture in resonance with Neptune's ascending node. If planet migration is too fast, then…

Earth and Planetary Astrophysics · Physics 2014-11-20 Gwenaël Boué , Jacques Laskar , Petr Kuchynka

Nbody simulations are used to examine the consequences of Neptune's outward migration into the Kuiper Belt, with the simulated endstates being compared rigorously and quantitatively to the observations. These simulations confirm the…

Astrophysics · Physics 2008-11-26 Joseph M. Hahn , Renu Malhotra

The current populations trapped in Neptune's main mean motion resonances in the Kuiper belt, Plutinos in the 3:2 and Twotinos in the 2:1, contain some of the best-characterized minor objects in the Solar System, given their dynamical…

Earth and Planetary Astrophysics · Physics 2026-01-28 Marco A. Muñoz-Gutiérrez , Sebastián Ramírez , Antonio Peimbert , Angeles Pérez-Villegas , Cristobal Petrovich

Recent works on planetary migration show that the orbital structure of the Kuiper belt can be very well reproduced if before the onset of the planetary instability Neptune underwent a long-range planetesimal-driven migration up to $\sim$28…

Earth and Planetary Astrophysics · Physics 2017-03-22 Rogerio Deienno , Alessandro Morbidelli , Rodney S. Gomes , David Nesvorny

The migration and encounter histories of the giant planets in our Solar System can be constrained by the obliquities of Jupiter and Saturn. We have performed secular simulations with imposed migration and N-body simulations with…

Earth and Planetary Astrophysics · Physics 2015-11-04 R. Brasser , Man Hoi Lee

The migration of Neptune's resonances through the proto-Kuiper belt has been imprinted in the distribution of small bodies in the outer Solar System. Here we analyze five published Neptune migration models in detail, focusing on the high…

Earth and Planetary Astrophysics · Physics 2019-07-17 S. M. Lawler , R. E. Pike , N. Kaib , M. Alexandersen , M. T. Bannister , Y. -T. Chen , B. Gladman , S. Gwyn , J. J. Kavelaars , J. -M. Petit , K. Volk

We explore a simplified model of the outcome of an early outer Solar System gravitational upheaval during which objects were captured into Neptune's 3:2 mean motion resonance via scattering rather than smooth planetary migration. We use…

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