On the Ages of Planetary Systems with Mean Motion Resonances
arXiv:1109.6671 · doi:10.1088/2041-8205/741/1/L23
Abstract
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.
15 pages, 2 tables. Accepted for publication in the Astrophysical Journal Letters
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