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The long-term evolution of known resonant trans-Neptunian objects

M. Saillenfest & G. Lari (2017)

Published
Jul 1, 2017
Journal
Astronomy & Astrophysics · Vol. 603
DOI
10.1051/0004-6361/201730525

At a GlanceAI

Long-term integrations map the dynamical stability of resonant TNOs and track how their resonant states evolve over Gyr timescales.

SummaryAI

Resonant trans-Neptunian objects are key tracers of how Neptune sculpted the outer Solar System, and their survival depends on subtle long-term dynamics such as secular and Lidov–Kozai-type effects. The study follows the long-term orbital evolution of the then-known resonant TNO population to assess which resonances and configurations remain stable over Solar System ages. By comparing how different resonant objects drift, hop, or remain confined, it provides a population-level view of resonance longevity and pathways for resonance-driven changes in eccentricity and inclination. These results help interpret present-day resonant TNOs as either primordial survivors or products of later dynamical evolution.

Method SnapshotAI

Long-term numerical integrations of the orbits of known resonant trans-Neptunian objects to monitor resonance and secular evolution.

BackgroundAI

Celestial mechanics of mean-motion resonances and secular dynamics (including Lidov–Kozai cycles) in the trans-Neptunian region.

An interesting numerical-analytical simulation

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