On the ages of planetary systems with mean-motion resonances

Shuki Koriski*, Shay Zucker

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


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.

Original languageEnglish
Article numberL23
JournalAstrophysical Journal Letters
Issue number1
StatePublished - 1 Nov 2011


  • celestial mechanics
  • methods: statistical
  • planetary systems
  • planets and satellites: dynamical evolution and stability
  • stars: statistics


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