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2011ApJ...741L..23K - Astrophys. J., 741, L23 (2011/November-1)

On the ages of planetary systems with mean-motion resonances.

KORISKI S. and ZUCKER S.

Abstract (from CDS):

We present preliminary though statistically significant evidence that shows that multiplanetary systems that exhibit a 2/1 period commensurability are in general younger than multiplanetary systems without commensurabilities, or even systems with other commensurabilities. An immediate possible conclusion is that the 2/1 mean-motion resonance in planetary systems tends to be disrupted after typically a few Gyrs.

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Journal keyword(s): celestial mechanics - methods: statistical - planetary systems - planets and satellites: dynamical evolution and stability - stars: statistics

Simbad objects: 40

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