Migration of Interplanetary Dust

Abstract

We numerically investigate the migration of dust particles with initial orbits close to those of the numbered asteroids, observed trans-Neptunian objects, and Comet Encke. The fraction of silicate asteroidal particles that collided with the Earth during their lifetime varied from 1.1% for 100 micron particles to 0.008% for 1 micron particles. Almost all asteroidal 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. The probability of collisions of cometary particles with the Earth is smaller than for asteroidal particles, and this difference is greater for larger particles.

Annals of the New York Academy of Sciences, 15 pages, 8 Figures, submitted

References in corpus (4)

• A Study of the Dynamics of Dust from the Kuiper Belt: Spatial Distribution and Spectral Energy Distribution
• Migration of Jupiter-Family Comets and Resonant Asteroids to Near-Earth Space
• Migration of Jupiter-family comets and resonant asteroids to near-Earth space
• Migration of Asteroidal Dust

Cited by in corpus (9)

• Dynamical Zodiacal Cloud Models Constrained by High Resolution Spectroscopy of the Zodiacal Light (Icarus, in press)
• Migration processes in the Solar System and their role in the evolution of the Earth and planets
• Migration of Small Bodies and Dust to Near-Earth Space
• Collision probabilities of migrating small bodies and dust particles with planets
• Migration of Comets to the Terrestrial Planets
• Migration of dust particles to the terrestrial planets
• Probabilities of collisions of bodies ejected from forming Earth with the terrestrial planets
• Migration of celestial bodies in the Solar system and in several exoplanetary systems
• Sources of zodiacal dust