Hamilton, D.P., E. Grün and M. Baguhl 1996.
Electromagnetic Escape of Dust from the Solar System. In Physics,
Chemistry, and Dynamics of Interplanetary Dust, (B.A.S.
Gustafson and M.S. Hanner, Eds.), 31-34.
Collisions of asteroids and among Zodiacal cloud particles produce
large amounts of submicron-sized debris, much of which is immediately
ejected from our solar system by electromagnetic forces. We
investigate the trajectories of tiny grains started on circular
uninclined orbits within the Zodiacal cloud and find that they reach
high ecliptic latitudes during the current configuration of the solar
magnetic field, perhaps accounting for particles detected by the
Ulysses spacecraft at latitudes up to 80\deg. When the solar magnetic
field is reversed, particles are more strongly confined to the
ecliptic plane and escape the solar system less readily. The
dependence of orbital dynamics on the 22-year solar cycle causes both
fluxes and spatial densities of sub-micron sized Zodiacal dust
particles to vary with time.
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