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Related papers: Neptune's Orbital Migration Was Grainy, Not Smooth

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Recent analyses have shown that distant orbits within the scattered disk population of the Kuiper belt exhibit an unexpected clustering in their respective arguments of perihelion. While several hypotheses have been put forward to explain…

Earth and Planetary Astrophysics · Physics 2016-01-22 Konstantin Batygin , Michael E. Brown

The tumultuous early era of outer solar system evolution culminated when Neptune migrated across the primordial Kuiper belt (PKB) and triggered a dynamical instability among the giant planets. This event led to the ejection of approximately…

The transneptunian objects (TNOs) trapped in mean-motion resonances with Neptune were likely emplaced there during planet migration late in the giant-planet formation process. We perform detailed modelling of the resonant objects detected…

A critical step toward the emergence of planets in a protoplanetary disk consists in accretion of planetesimals, bodies 1-1000 km in size, from smaller disk constituents. This process is poorly understood partly because we lack good…

Earth and Planetary Astrophysics · Physics 2019-06-28 David Nesvorny , Rixin Li , Andrew N. Youdin , Jacob B. Simon , William M. Grundy

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

(Abridged) New optical colors of 58 objects in mean motion resonances with Neptune show the various resonant populations have significantly different color distributions. The 5:3 and 7:4 resonances have semi-major axes near the middle of…

Earth and Planetary Astrophysics · Physics 2015-06-11 Scott S. Sheppard

We examine the dynamics of small bodies in orbits similar to that of comet 29P/Schwassmann-Wachmann 1, i.e. near-circular orbits between Jupiter and Saturn. As of late 2019, there are 14 other known bodies in this region that lie in similar…

Earth and Planetary Astrophysics · Physics 2021-02-17 Andrew C. Roberts , Marco A. Muñoz-Gutiérrez

Although the present-day orbital distribution of minor bodies that go around the Sun between the orbit of Neptune and the Kuiper Cliff is well understood, past ~50 au from the Sun, our vision gets blurred as objects become fainter and…

Earth and Planetary Astrophysics · Physics 2023-12-25 C. de la Fuente Marcos , R. de la Fuente Marcos

Nearly one-third of objects occupying the most circular, coplanar Kuiper belt orbits (the cold classical belt) are binary, and several percent of them are "ultra-wide" binaries (UWBs): 100-km-sized companions spaced by tens of thousands of…

Earth and Planetary Astrophysics · Physics 2024-11-18 Hunter M. Campbell , Kalee E. Anderson , Nathan A. Kaib

We describe analytical and numerical collisional evolution calculations for the size distribution of icy bodies in the Kuiper Belt. For a wide range of bulk properties, initial masses, and orbital parameters, our results yield power-law…

Astrophysics · Physics 2009-11-10 Scott J. Kenyon , Benjamin C. Bromley

Recent observations (Burnes et al 2002,Veillet et al 2002, Margot et al 2002a) have revealed an unexpectedly high binary fraction among the Trans-Neptunian Objects (TNOs) that populate the Kuiper Belt. The TNO binaries are strikingly…

Astrophysics · Physics 2007-05-23 Yoko Funato , Junichiro Makino , Piet Hut , Eiichiro Kokubo , Daisuke Kinoshita

In our previous study of Neptune's 4:7 mean motion resonance (MMR), we discovered that its resonant angle can only librate within a specific eccentricity ($e$) versus inclination ($i$) region, determined by a theoretical limiting curve…

Earth and Planetary Astrophysics · Physics 2023-06-28 Jian Li , S. M. Lawler , Hanlun Lei

The outward migration of a pair of resonant-orbit planets, driven by tidal interactions with a gas-dominated disk, is studied in the context of evolved solar nebula models. The planets' masses, M1 and M2, correspond to those of Jupiter and…

Earth and Planetary Astrophysics · Physics 2015-06-05 Gennaro D'Angelo , Francesco Marzari

Dynamical mass estimates for the main asteroid belt and the trans-Neptunian Kuiper belt have been found from their gravitational influence on the motion of planets. Discrete rotating models consisting of moving material points have been…

Earth and Planetary Astrophysics · Physics 2018-11-14 E. V. Pitjeva , N. P. Pitjev

In this work we study the gravitational influence of the material extending from Uranus orbit to the Kuiper belt and beyond on objects moving within these regions. We conclude that a density distribution given by $\rho(r)=\frac{1}{r}$ (for…

Astrophysics · Physics 2009-11-10 Jose A. de Diego , Dario Nunez , Jesus Zavala

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…

The trans-Neptunian region of the solar system exhibits an intricate dynamical structure, much of which can be explained by an instability-driven orbital history of the giant planets. However, the origins of a highly inclined, and in…

Earth and Planetary Astrophysics · Physics 2016-12-14 Konstantin Batygin , Michael E. Brown

The population of the Kuiper Belt within 50 AU of the Sun has likely been severely depleted by gravitational perturbations from the giant planets, particularly Neptune. The density of Kuiper Belt objects is expected to be two orders of…

Astrophysics · Physics 2009-10-31 R. Lynne Allen , Gary Bernstein , Renu Malhotra

We modeled the 3-D structure of the Kuiper Belt dust cloud at four different dust production rates, incorporating both planet-dust interactions and grain-grain collisions using the collisional grooming algorithm. Simulated images of a model…

Earth and Planetary Astrophysics · Physics 2015-05-19 Marc J. Kuchner , Christopher C. Stark

The cold classical Kuiper belt objects have low inclinations and eccentricities and are the only Kuiper belt population suspected to have formed in situ. Compared with the dynamically excited populations, which exhibit a broad range of…