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astro-ph.EP2026
Planetary Desert around Compact Binaries: Dynamical Instability Triggered by Resonance-Induced Eccentricity Excitation
Bin Liu, Dong Lai
Compact binaries with orbital periods shorter than about 7 days show an absence of transiting planets, a feature known as the ``circumbinary planet desert". The physical mechanism…
astro-ph.EP2025
Limiting Eccentricity in Restricted Hierarchical Three-Body Systems with Short-Range Forces
Xiumin Huang, Dong Lai, Bin Liu
A hierarchical three-body model can be widely applied to diverse astrophysical settings, from satellite-planet-star systems to binaries around supermassive black holes. The octupol…
astro-ph.EP2025★ 1 cited
Free-floating Planets Produced by Planet-Planet Scatterings: Ejection Velocity and Survival Rate of Their Moons
Xiumin Huang, Dong Lai
The discovery of numerous free-floating planets (FFPs) has intensified interest in their origins and dynamical histories. A leading formation mechanism is planet-planet scatterings…