Astronomy and Astrophysics – Astronomy
Scientific paper
Nov 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987eprs.nasaq....m&link_type=abstract
In its Experiments in Planetary and Related Sciences and the Space Station 3 p (SEE N89-14998 06-88)
Astronomy and Astrophysics
Astronomy
Astronomical Models, Cosmochemistry, Granular Materials, Kinetics, Nebulae, Space Station Payloads, Spaceborne Experiments, Chemical Composition, Mass Transfer, Mineralogy, Transport Theory, Turbulent Flow
Scientific paper
Model calculations, which include the effects of turbulence during subsequent solar nebula evolution after the collapse of a cool interstellar cloud, can reconcile some of the apparent differences between physical parameters obtained from theory and the cosmochemical record. Two important aspects of turbulence in a protoplanetary cloud include the growth and transport of solid grains. While the physical effects of the process can be calculated and compared with the probable remains of the nebula formulation period, the more subtle effects on primitive grains and their survival in the cosmochemical record cannot be readily evaluated. The environment offered by the Space Station (or Space Shuttle) experimental facility can provide the vacuum and low gravity conditions for sufficiently long time periods required for experimental verification of these cosmochemical models.
MacKinnon Ian D. R.
Rietmeijer Frans J. M.
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