Modeling the Migration of Neptune and the Corresponding Resonant Captures
Earth and Planetary Astrophysics
2013-08-07 v1
Abstract
Due to the angular momentum exchange with planetesimals, Neptune might have migrated outward to the current position, and captured many Kuiper belt objects (KBOs) into resonances. We set up a semi-analytic model to simulate the outward migration of Neptune, and the processes of resonant captures. Our model can naturally explain Neptune's currently observed semi-major axis and eccentricity. The results show that the current population ratio between 3:2 and 2:1 is mainly due to the original density distribution of KBOs, which might be related to drag-induced inward migrations of proto-KBOs.
Keywords
Cite
@article{arxiv.1308.1156,
title = {Modeling the Migration of Neptune and the Corresponding Resonant Captures},
author = {Li-Chin Yeh and Ing-Guey Jiang and Li-Yong Zhou},
journal= {arXiv preprint arXiv:1308.1156},
year = {2013}
}
Comments
4 pages, recently published in Proceedings of the 11th Asian-Pacific Regional IAU Meeting (APRIM2011), NARIT Conference Series Volume I