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Velocity distribution of Earth-crossing asteroid grainsWe have systematically studied the evolution of 4- and 9-micrometer-diameter dust particles from three prominent asteroid families, Eos, Koronis, and Themis, until they reach the Earth. We have found that they are quite distinguishable in their (I cos omega, I sin omega) phase space. The different distributions in the inclination space have several important observational consequences, which can be used to identify the origins of these dust particles. We convert the orbital elements of these Earth-crossing dust grains to distinguish them by using any one single velocity component. We conclude that in order to identify the origins of the Earth-crossing dust grains we need all three velocity components to get their orbital elements and find their positions in the inclination space.
Document ID
19950012772
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Liou, Jer-Chyi
(Florida Univ. Gainesville, FL, United States)
Dermott, Stanley F.
(Florida Univ. Gainesville, FL, United States)
Date Acquired
September 6, 2013
Publication Date
January 1, 1994
Publication Information
Publication: Lunar and Planetary Inst., Workshop on Particle Capture, Recovery and Velocity(Trajectory Measurement Technologies
Subject Category
Astrophysics
Accession Number
95N19187
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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