Astronomy19 papers
Mean-motion resonances in the Solar system
A curated collection of essential papers on mean-motion resonances in the asteroid belt, TNO, and beyond.
ES
Evgeny Smirnov
All Reviews
AstronomyN/A
intermediate
Is the orbital distribution of multiplanet systems influenced by pure three-planet resonances?
M Cerioni et al. (2022)
- Published
- Mar 31, 2022
- Journal
- Monthly Notices of the Royal Astronomical Society · Vol. 513 · No. 1
- DOI
- 10.1093/mnras/stac876
At a GlanceAI
Shows a statistically significant link between compact multiplanet period ratios and the web of two- and pure three-planet resonances.
SummaryAI
The study compares the observed period-ratio distribution of known systems with at least three planets to the “resonance web” expected from two-planet mean-motion resonances and pure three-planet commensurabilities. It reports statistically significant evidence that compact, low-mass multiplanet systems cluster in ways correlated with this resonance structure, suggesting resonances may have shaped their architectures. Although famous resonance chains (e.g., Kepler-60/80, TRAPPIST-1) contribute, most of the signal is attributed to systems not previously tagged as resonance chains. The authors argue this pattern is consistent with formation or rearrangement via late-stage disc migration and/or eccentricity damping.
Method SnapshotAI
Statistical comparison of observed multiplanet mean-motion ratio distributions with a modeled resonance web from 2-planet and pure 3-planet commensurabilities.
BackgroundAI
Mean-motion resonances in planetary systems, orbital period ratios, and basic ideas of disc-driven migration and eccentricity damping.