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Astronomy
intermediate

The orbital stability of planets trapped in the first-order mean-motion resonances

Yuji Matsumoto et al. (2012)

Published
Nov 1, 2012
Journal
Icarus · Vol. 221 · No. 2
DOI
10.1016/j.icarus.2012.08.032

At a GlanceAI

Assesses orbital stability of planetary pairs captured in first-order mean-motion resonances.

SummaryAI

Many planet pairs are expected to be trapped in first-order mean-motion resonances during migration, but whether such configurations remain stable is a key question for planet formation and observed system architectures. This study examines the orbital stability of planets in these resonances and identifies what conditions allow resonant trapping to persist versus break down. The results help interpret why some observed planetary systems show resonant chains while many sit just outside exact resonance. It also informs how long resonant configurations can survive as planetary systems evolve.

Method SnapshotAI

Dynamical analysis of resonant planetary orbits using numerical orbital integrations.

BackgroundAI

Celestial mechanics of mean-motion resonances and basic orbital dynamics of multi-planet systems.

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