Abstract
The 10,000 year long-term orbital evolution of six model dust particles ejected from the comet Encke at its perihelion has been investigated. Particles with ejection velocity 40 m s −1 were released in the following directions (two orientations for each direction): tangential to the cometary motion, normal to the comet's orbital plane and perpendicular to the preceding ones. Planetary perturbations, excluding Pluto, and the simultaneous action of the Poynting-Robertson effect and the well-known form of the equation for the solar wind have been taken into account. Simulations have been done for dust particles of several sizes (0.1–1.5 cm). The obtained dispersions in orbital elements have been compared with the data observed.
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