On the Ages of Planetary Systems with Mean Motion Resonances

Details On the Ages of Planetary Systems with Mean Motion Resonances On the Ages of Planetary Systems with Mean Motion Resonances

2011-09-29

arxiv.org/abs/1109.6671v1

Astronomy and Astrophysics

Astrophysics

Earth and Planetary Astrophysics

15 pages, 2 tables. Accepted for publication in the Astrophysical Journal Letters

Scientific paper

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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