Recent rubble-pile origin of asteroidal solar system dust bands and asteroidal interplanetary dust particles

Details Recent rubble-pile origin of asteroidal solar system dust bands and asteroidal interplanetary dust particles Recent rubble-pile origin of asteroidal solar system dust bands and asteroidal interplanetary dust particles

Nov 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002esasp.500..319d&link_type=abstract

In: Proceedings of Asteroids, Comets, Meteors - ACM 2002. International Conference, 29 July - 2 August 2002, Berlin, Germany. Ed

Astronomy and Astrophysics

Astrophysics

23

Interplanetary Dust: Origin, Minor Planets

Scientific paper

25% of all the dust in the zodiacal cloud may be associated with the "ten-degree" dust band and 5% with the "near-ecliptic" bands. Dynamical modeling of the structure of the ten-degree band shows that the initial mean proper inclination of the dust particle orbits needed to account for this band is 9.3° and equal to the mean proper inclination of the Veritas family asteroids. Dynamical evidence on the ages of asteroid families, and chemical and physical evidence on the nature of interplanetary dust particles (IDPs), makes it likely that the dust bands are the result of the recent catastrophic disruptions of small "rubble piles". If this is the case, we calculate that 85% of all the asteroidal IDPs collected in Earth's stratosphere could originate from the Veritas family. Thus, in our IDP collections on Earth, we may already have an abundance of sample from a known C-type asteroids.

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