Restructuring of dust aggregates in the solar nebula.

Details Restructuring of dust aggregates in the solar nebula. Restructuring of dust aggregates in the solar nebula.

Oct 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996nascp3339..155d&link_type=abstract

Scientific conference: From stardust to planetesimals, p. 155 - 158

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Solar Nebula: Dust Grains

Scientific paper

The authors discuss the results of a recent effort to analyze the mechanical stability of dust aggregates with a detailed model of the physical properties of a contact between grains. They find that (1) aggregates formed from single sized grains via Particle-Cluster-Aggregation remain fluffy, (2) collisions with other aggregates and with large grains may lead to compaction, (3) the velocities of small grains and aggregates in the early solar nebula are too small to produce marked compaction as long as the aggregates are small, and (4) internal restructuring of aggregates is a potentially large sink of energy which could enable the sticking of large bodies even at collision velocities of the order of several hundred cm/s.

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