EDP Sciences
Free access
Volume 368, Number 2, March III 2001
Page(s) 700 - 705
Section The solar system
DOI http://dx.doi.org/10.1051/0004-6361:20010056

A&A 368, 700-705 (2001)
DOI: 10.1051/0004-6361:20010056

The orbit evolution of 32 plutinos over 100 million year

X.-S. Wan1 and T.-Y. Huang1, 2

1  Astronomy Department, Nanjing University, Nanjing 210093, PR China
2  National Astronomical Observatories, Beijing, PR China

(Received 27 October 2000 / Accepted 4 January 2001)

The orbits of thirty two plutinos that are presently in the 3:2 mean motion resonance with Neptune have been integrated numerically and accurately to 108 years into the future. Fourteen of them are found in unstable orbits after encountering Neptune or Pluto. Six of eighteen plutinos with stable orbits are in the Kozai resonance or around its separatrix zone. No node to node, perihelion to perihelion secular resonance or the so called 1:1 super resonance are found.

Key words: Kuiper belt, Oort cloud -- minor planets, asteroids

Offprint request: T.-Y. Huang, tyhuang@nju.edu.cn

© ESO 2001