Migration of Small Bodies and Dust to Near-Earth Space

Abstract

The orbital evolution of Jupiter-family comets (JFCs), resonant asteroids, and asteroidal, trans-Neptunian, and cometary dust particles under the gravitational influence of planets was integrated. For dust particles we also considered radiation pressure, Poynting-Robertson drag, and solar wind drag. The probability of a collision of one former JFC with a terrestrial planet can be greater than analogous total probability for thousands other JFCs. If those former JFCs that got near-Earth object (NEO) orbits for millions of years didn't disintegrate during this time, there could be many extinct comets among NEOs. The maximum probability of a collision of an asteroidal or cometary dust particle with the Earth during its lifetime was for diameter $d$$\sim$100 microns. At $d$$<$10 micron, the collision probability of a trans-Neptunian particle with the Earth during a lifetime of the particle was less than that for an asteroidal particle by only a factor of several.

Submitted to Advances in Space Research (Proceedings of COSPAR-2004)

References in corpus (3)

• Dynamical models of Kuiper Belt dust in the inner and outer Solar System
• New Measurements of the Motion of the Zodiacal Dust
• Migration of Jupiter-family comets and resonant asteroids to near-Earth space

Cited by in corpus (13)

• From stellar nebula to planetesimals
• 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
• Delivery of water and volatiles to the terrestrial planets and the Moon
• Probabilities of collisions of planetesimals from different regions of the feeding zone of the terrestrial planets with the forming planets and the Moon
• Formation of the Earth and Moon: Influence of Small Bodies
• Collision probabilities of migrating small bodies and dust particles with planets
• Migration of Comets to the Terrestrial Planets
• Probabilities of collisions of bodies ejected from forming Earth with the terrestrial planets
• Migration of dust particles to the terrestrial planets
• The outburst triggered by the Deep Impact collision with Comet Tempel 1
• Migration of celestial bodies in the Solar system and in several exoplanetary systems
• Sources of zodiacal dust