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Agustin Heron (Indiana U. Bloomington) good title "Intruder alert"

20% of Kepler systems have at least 1 pair of planets in or close to resonances. Using planetesimals to slowly change orbits and break resonant chains: time for REBOUND (with added sound effects by speaker haha)

If planetesimals are "recycled" (don't get destroyed/kicked out of system after planet encounters), very small mass (fraction of Earth mass) can change orbits significantly.

Maybe this happened to AU Mic?

#DDA2026