A Possible Correlation between the Gaseous Drag Strength and Resonant Planetesimals in Planetary Systems

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...

Full description

Saved in:
Bibliographic Details
Published inThe Astrophysical journal Vol. 656; no. 1; pp. 534 - 544
Main Authors Jiang, Ing-Guey, Yeh, Li-Chin
Format Journal Article
LanguageEnglish
Published Chicago, IL IOP Publishing 10.02.2007
University of Chicago Press
Subjects
Astronomy
Earth, ocean, space
Exact sciences and technology
Planetesimals
Circumstellar matter
planetary systems
Planetary system
Correlations
Celestial mechanics
Online AccessGet full text

Cover

More Information
Summary: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.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ObjectType-Article-2
ObjectType-Feature-1
ISSN:0004-637X
1538-4357
DOI:10.1086/510420