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Start Over "Anders, Edward" Topic carbides Publication Type Academic Journals
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2. Meteoritic silicon.

Author

Ming, Tang, Anders, Edward, Hoppe, Peter, and Zinner, Ernst

Subjects
*COSMIC grains, *SILICON carbide, *CARBIDES, *METEORITES, *CARBON, *NITROGEN, *ISOTOPES, *STARS, *RED giants
Abstract

Interstellar silicon carbide grains in meteorites provide a novel means for studying the carbon-star population of about 5 x 10 9 years ago. Their 12C/13C ratios differ greatly from the solar value but resemble those of present-day carbon stars, implying little change in galactic 13C inventory. Isotope data on nitrogen and silicon suggest that the silicon carbide grains come mainly from red giants, with small contributions from novae. [ABSTRACT FROM AUTHOR]

Published
1989
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