Migration of Asteroidal Dust

Details Migration of Asteroidal Dust Migration of Asteroidal Dust

2003-03-17

arxiv.org/abs/astro-ph/0303398v1

Astronomy and Astrophysics

Astrophysics

Proc. of the international conference "New trends in astrodynamics and applications" (20-22 January 2003, University of Maryla

Scientific paper

We numerically investigate the migration of dust particles with initial orbits close to those of the numbered asteroids. The fraction of silicate particles that collided with the Earth during their lifetimes varied from 0.2% for 40 micron particles to 0.008% for 1 micron particles. Almost all particles with diameter d>4 microns collided with the Sun. The peaks in the migrating asteroidal dust particles' semi-major axis distribution at the n/(n+1) resonances with Earth and Venus and the gaps associated with the 1:1 resonances with these planets are more pronounced for larger particles.

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