Multiple mean motion resonances in the HR 8799 planetary system
Krzysztof Goździewski & Cezary Migaszewski (2014)
- Published
- Apr 17, 2014
- Journal
- Monthly Notices of the Royal Astronomical Society · Vol. 440 · No. 4
- DOI
- 10.1093/mnras/stu455
At a GlanceAI
Explores multiple mean-motion resonance architectures that can explain the long-term stability of the HR 8799 multi-planet system.
SummaryAI
HR 8799 hosts several massive, widely separated planets whose apparent closeness raises the question of how the system can remain stable over long times. The study examines whether configurations involving multiple mean-motion resonances between the planets can provide a coherent dynamical explanation. By framing HR 8799 in terms of resonance chains rather than isolated planet pairs, it highlights how coupled resonances can act as a stabilizing structure. The implications are improved constraints on viable orbital solutions and a clearer dynamical interpretation of directly imaged multi-planet systems.
Method SnapshotAI
Dynamical modeling of orbital configurations with an emphasis on testing stability in multi-planet mean-motion resonance chains.
BackgroundAI
Celestial mechanics of multi-planet systems, especially mean-motion resonances and orbital stability concepts.