2006/10/23 by Ing-Guey Jiang, Ing‐Guey Jiang, Li‐Chin Yeh +1 · 2 citations
Physics and Astronomy · #Asteroid #Astro and Planetary Science #Astrophysics and Star Formation Studies #Drag #Formation and evolution of the Solar System #Planetary system #Planetesimal #Population #Solar System #Stellar, planetary, and galactic studies #astro-ph
paper · pdf · doi:10.1086/510420
published as Astrophys.J.656:534-544,2007 · accepted for publication in The Astrophysical Journal
arxiv created 2006/10/23 · openalex publication_date 2007/02/03 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We study the migration and resonant capture of planetesimals in a planetary system consisting of a gaseous disk analogous to the primordial solar nebula and a Neptune-like planet. Using a simple treatment of the drag force, we find that planetesimals are mainly trapped in the 3 : 2 and 2 : 1 resonances and that the resonant populations are correlated with the gaseous drag strength in a sense that the 3 : 2 resonant population increases with the stronger gaseous drag, but the 2 : 1 resonant population does not. Since planetesimals can lead to the formation of larger bodies similar to asteroids and Kuiper Belt objects, the gaseous drag can play an important role in the configuration of a planetary system.