EDP Sciences
Free access
Volume 394, Number 3, November II 2002
Page(s) 1129 - 1134
Section The solar system
DOI http://dx.doi.org/10.1051/0004-6361:20021198

A&A 394, 1129-1134 (2002)
DOI: 10.1051/0004-6361:20021198

Dynamics of the Edgeworth-Kuiper Belt beyond 50 AU

Spread of a primordial thin disk
A. Brunini

Observatorio Astronómico. Universidad Nacional de La Plata and IALP-CONICET Paseo del Bosque S/N, 1900 La Plata, Argentina

(Received 22 May 2002 / Accepted 11 July 2002 )

In this paper we report numerical simulations of the dynamical evolution of the region a >50 AU. We found that some dynamical effects such as high-order secular resonances with the rate of precession of Neptune's node of the form $k \dot \Omega - \dot \Omega_{\rm Nep}$ with k=4,5,... or combined mean motion resonances with Uranus and Neptune of the form $k n_{\rm N} + j n_{\rm U} + m n \sim 0$ may increase the area of a very thin primordial disk in this region by a factor of up to 2 after 4.5 Gy of evolution.

Key words: Kuiper Belt -- comets: general -- solar system: general

© ESO 2002