Grain motions in the solar nebula

Details Grain motions in the solar nebula Grain motions in the solar nebula

Feb 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979m%26p....20...49m&link_type=abstract

(Conference on Protostars and Planets, Tucson, Ariz., Jan. 3-7, 1978.) Moon and the Planets, vol. 20, Feb. 1979, p. 49-59.

Computer Science

2

Cosmic Dust, Meteoritic Composition, Nebulae, Solar System, Supernova Remnants, Ejecta, Hydrodynamic Equations, Nuclear Fusion, Particle Density (Concentration), Particle Motion, Shock Layers, Shock Wave Interaction, Transport Properties

Scientific paper

Isotopic analyses of meteorites suggest the possibility that some interaction between supernova ejecta and grains occurred in the solar nebula. In particular, the dynamics of grain motions in the solar nebula can explain the observed mixing of nucleosynthetic components. The effect of a shock wave on the motions of grains is examined. On the basis of calculations, it is estimated that if grains carried the isotopic anomalies investigated by Lee, Papanastassoiu, and Wasserburg (1978), then those grains could be no bigger than 0.0002 cm in size. A scenario is suggested in which the sluggishness of grains provides a natural way to concentrate and mix the nucleosynthetic components carried by grains in the ejecta and in the solar nebula.

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