Continued search for rare types of presolar SiC - Grains X and Y

Details Continued search for rare types of presolar SiC - Grains X and Y Continued search for rare types of presolar SiC - Grains X and Y

Mar 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997lpi....28...33a&link_type=abstract

Conference Paper, 28th Annual Lunar and Planetary Science Conference, p. .33.

Computer Science

9

Murchison Meteorite, Silicon Carbides, Asymptotic Giant Branch Stars, Stellar Composition, Metallicity, Granular Materials, High Resolution, Fractions

Scientific paper

High mass resolution isotopic imaging is presently used to locate rare types of presolar SiC in grains from the Murchison SiC fraction KJG; 15 type X and 27 type Y grains have thus been obtained. It is judged that Y grains come from different stars with a wide range of metallicities. It is likely that the asymptotic giant branch stars that produced the Y grains either underwent a larger number of thermal pulses or lost a large portion of their envelopes during dredge-up.

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