Grain carriers of isotopic anomalies

Details Grain carriers of isotopic anomalies Grain carriers of isotopic anomalies

Sep 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979ap%26ss..65..119m&link_type=abstract

(Lunar and Planetary Institute, Workshop on Thermodynamics and Kinetics of Dust Formation in the Space Medium, Houston, Tex., Se

Astronomy and Astrophysics

Astrophysics

1

Abundance, Astronomical Models, Interstellar Matter, Isotope Effect, Mass Transfer, Solar Wind, Cosmic Dust, Meteoritic Composition, Nuclear Fusion, Turbulence Effects

Scientific paper

The dynamics of grain motion through gas are examined in terms of the injection of isotopically anomalous (compared to solar abundances) material into the early solar nebula. Calculations indicate that the injected grains cannot penetrate to the center of any of a range of reasonable configurations, suggesting the formation of an edge region enriched in injected material. Furthermore, the dynamical behavior of grains in turbulent flows indicates that pockets of grains can have some resistance to turbulent diffusion. The constraints developed here are used to delineate a set of consistent, injected-grain models for the origin of the isotopic anomalies in meteorite inclusions.

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