Astronomy and Astrophysics – Astronomy
Scientific paper
Oct 2000
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000dps....32.5310s&link_type=abstract
American Astronomical Society, DPS Meeting #32, #53.10; Bulletin of the American Astronomical Society, Vol. 32, p.1103
Astronomy and Astrophysics
Astronomy
Scientific paper
The first stage of planet building is collisional coagulation of dust aggregates in the solar nebula. Although the importance of the collision is well recognized, there has been a few attempt to simulate collision of large ( ~ cm sized) aggregates. Here I report the results of numerical simulations of dust aggregate collisions using SPH hydrocode. The essential parameter is the mechanical strength of dust aggregates, since it is expected that the strength of aggregates varies extensively from 103 dyn cm-2 (estimated tensile strength of comet SL9: Greenberg et al. 1997) to 107 dyn cm-2 (tensile strength of commercial polycrystalline ice). It has been found that sticking occurs under limited conditions, in which tensile strength is larger than compressive strength of aggregates. This results suggest that the aggregate coagulation processes are highly material dependent, and collisional growth proceeds in the limited locations in the solar nebula.
No associations
LandOfFree
Numerical Simulation of Dust Aggregate Collisions (Title Only) does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Numerical Simulation of Dust Aggregate Collisions (Title Only), we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Numerical Simulation of Dust Aggregate Collisions (Title Only) will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-867603