The Dynamics of Planetary Ejection

arXiv:2608.00173 · astro-ph.EP, astro-ph.SR · Submitted 2026-07-31 · Read on arXiv

astro-ph.EP, astro-ph.SR

Submitted: 2026-07-31

Updated: 2026-08-26

Comments: invited review; accepted to PASP

License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/

Terminology

• Microlensing — 32× in this paper · explained in 2 episodes
• Adam — 24× in this paper · explained in 2 episodes
• Core — 10× in this paper · explained in 2 episodes
• Velocity Dispersion — 9× in this paper · explained in 2 episodes
• Degeneracy — 2× in this paper · explained in 3 episodes
• Metallicity — 2× in this paper · explained in 3 episodes
• Population Synthesis — 2× in this paper · explained in 2 episodes
• Aligned Orbit — 1× in this paper · explained in 1 episode
• Gravitational Lensing — 1× in this paper · explained in 2 episodes
• Mass Segregation — 1× in this paper · explained in 2 episodes

Sources

• The Wide Field Infrared Survey Telescope: 100 Hubbles for the 2020s
• Laser Interferometer Space Antenna
• Suppression of giant planet formation in stellar clusters
• Orbital Parameters of the PSR B1620-26 Triple System
• Two-stage disruption of resonant chains
• Planet-Planet Scattering Explains the Mass-Eccentricity Relation of Warm Jupiters
• Unified Formation Channel of Hot and Warm Jupiters via Planet-Planet Scattering
• ET White Paper: To Find the First Earth 2.0
• Hot Jupiters in Old Wide-Binary Systems
• Formation of Free-Floating Planets via Ejection: Population Synthesis with a Realistic IMF and Comparison to Microlensing Observations
• Free Floating or Merely Detached?
• The MOA 1.8-metre alt-az wide-field survey telescope and the MOA project
• Gravitational Scattering
• KMT-2024-BLG-3237: Another Free-Floating Planet Candidate with Angular Einstein Radius Measurement
• Interstellar Interloper 1I/2017 U1: Observations from the NOT and WIYN Telescopes
• Planetesimal-Driven Instabilities in Resonant Chains of Cold Neptunes and Their Dynamical Outcomes
• The Architecture of the 14 Herculis System Suggests Primordial Ejection of a Massive Planet
• The HARPS search for southern extra-solar planets XXXIV. Occurrence, mass distribution and orbital properties of super-Earths and Neptune-mass planets
• The Origin and Evolution of Multiple Star Systems
• White dwarf planets in star clusters: gravitational scattering versus mass-loss effects

Related papers

• PDS 70 c and SR 12 c: Observational Constraints on Giant-Planet and Satellite Formation
• Two-stage disruption of resonant chains
• Detectability of resolved hydrogen lines from the accretion shock at gas giants and their CPDs
• Binary-lens Microlensing Degeneracy: Impact on Planetary Sensitivity and Mass-ratio Function
• Atmospheric escape fractionates secondary but not primary atmospheres
• The Occurrence Rate of Nearby Planetary Companions to Hot Jupiters