1 DYNAMICAL EVOLUTION OF DUST PARTICLES IN THE KUIPER DISK

A Kuiper belt dust disk will have a resonant structure, arising because the Plutinos are in the 3:2 mean motion resonance with Neptune. We run numerical integrations of particles originating from Plutinos to determine what percentage of particles remain in the resonance for a va-riety of particle and source body sizes. The dynamical evolution of the particles is followed from source to sink with Poynting-Robertson light drag, solar wind drag, ra-diation pressure, the Lorentz force, neutral interstellar gas drag, and the effects of planetary gravitational perturba-tions included. The number of particles in the 3:2 reso-nance increases with decreasing p for the cases where the initial source bodies are small and the percentage of par-ticles in resonance is not significantly changed by either the addition of the Lorentz force, as long as the potential of the particles is small (V x 5 V) , or the effect of neutral interstellar gas drag