Dynamical Interactions and Mass Loss within the Uranian System

The origin and evolution of planetary rings and moons remains an active area of study, particularly as they relate to the impact history and volatile inventory of the outer solar system. The Uranian system contains a complex system of rings that are coplanar with the highly inclined planetary equato...

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Main Authors: Stephen R. Kane, Zhexing Li
Format: Article
Language:English
Published: IOP Publishing 2023-01-01
Series:The Planetary Science Journal
Subjects:
Online Access:https://doi.org/10.3847/PSJ/ad05ce
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author Stephen R. Kane
Zhexing Li
author_facet Stephen R. Kane
Zhexing Li
author_sort Stephen R. Kane
collection DOAJ
description The origin and evolution of planetary rings and moons remains an active area of study, particularly as they relate to the impact history and volatile inventory of the outer solar system. The Uranian system contains a complex system of rings that are coplanar with the highly inclined planetary equator relative to the orbital plane. Uranus also harbors five primary regular moons that play an important role in the distribution of material that surrounds the planet. Here we present the results of a dynamical simulation suite for the Uranian system, intended to explore the interaction between the five primary regular moons and particles within the system. We identify regions of extreme mass loss within 40 planetary radii of Uranus, including eccentricity excitation of particle orbits at resonance locations that can promote moonlet formation within the rings. We calculate a total dynamical particle mass-loss rate of 35% within 0.5 × 10 ^6 yr and 40% mass loss within 10 ^7 yr. We discuss the implications for postimpact material, including dynamical truncation of stable ring locations and/or locations of moon formation promoted by dynamical excitation of ring material.
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spelling doaj.art-93a50dc8b1d44795933df64c74bf594a2024-02-03T11:56:27ZengIOP PublishingThe Planetary Science Journal2632-33382023-01-0141121610.3847/PSJ/ad05ceDynamical Interactions and Mass Loss within the Uranian SystemStephen R. Kane0https://orcid.org/0000-0002-7084-0529Zhexing Li1https://orcid.org/0000-0002-4860-7667Department of Earth and Planetary Sciences, University of California , Riverside, CA 92521, USA ; skane@ucr.eduDepartment of Earth and Planetary Sciences, University of California , Riverside, CA 92521, USA ; skane@ucr.eduThe origin and evolution of planetary rings and moons remains an active area of study, particularly as they relate to the impact history and volatile inventory of the outer solar system. The Uranian system contains a complex system of rings that are coplanar with the highly inclined planetary equator relative to the orbital plane. Uranus also harbors five primary regular moons that play an important role in the distribution of material that surrounds the planet. Here we present the results of a dynamical simulation suite for the Uranian system, intended to explore the interaction between the five primary regular moons and particles within the system. We identify regions of extreme mass loss within 40 planetary radii of Uranus, including eccentricity excitation of particle orbits at resonance locations that can promote moonlet formation within the rings. We calculate a total dynamical particle mass-loss rate of 35% within 0.5 × 10 ^6 yr and 40% mass loss within 10 ^7 yr. We discuss the implications for postimpact material, including dynamical truncation of stable ring locations and/or locations of moon formation promoted by dynamical excitation of ring material.https://doi.org/10.3847/PSJ/ad05ceUranusUranian satellitesOrbital evolutionOrbital resonancesOrbitsDynamical evolution
spellingShingle Stephen R. Kane
Zhexing Li
Dynamical Interactions and Mass Loss within the Uranian System
The Planetary Science Journal
Uranus
Uranian satellites
Orbital evolution
Orbital resonances
Orbits
Dynamical evolution
title Dynamical Interactions and Mass Loss within the Uranian System
title_full Dynamical Interactions and Mass Loss within the Uranian System
title_fullStr Dynamical Interactions and Mass Loss within the Uranian System
title_full_unstemmed Dynamical Interactions and Mass Loss within the Uranian System
title_short Dynamical Interactions and Mass Loss within the Uranian System
title_sort dynamical interactions and mass loss within the uranian system
topic Uranus
Uranian satellites
Orbital evolution
Orbital resonances
Orbits
Dynamical evolution
url https://doi.org/10.3847/PSJ/ad05ce
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AT zhexingli dynamicalinteractionsandmasslosswithintheuraniansystem