Multi-element isotopic analysis of single presolar SiC grains

被引：14
作者：
Barzyk, J. G.
Savina, M. R.
Davis, A. M.
Gallino, R.
Pellin, M. J.
Lewis, R. S.
Amari, S.
Clayton, R. N.
机构：
[1] Univ Chicago, Dept Geophys Sci, Chicago, IL 60637 USA
[2] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA
[3] Chicago Ctr Cosmochem, Chicago, IL 60637 USA
[4] Univ Chicago, Enrico Fermi Inst, Chicago, IL 60637 USA
[5] Univ Turin, Dipartimento Fis Gen, I-10125 Turin, Italy
[6] Washington Univ, Space Sci Lab, St Louis, MO 63130 USA
[7] Univ Chicago, Dept Chem, Chicago, IL 60637 USA
来源：
NEW ASTRONOMY REVIEWS | 2006年 / 50卷 / 7-8期
基金：
美国国家航空航天局;
关键词：
SILICON-CARBIDE GRAINS; GIANT BRANCH STARS; NUCLEOSYNTHESIS; MOLYBDENUM; BARIUM;
D O I：
10.1016/j.newar.2006.06.055
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Isotopic compositions of up to three elements (Mo, Zr, Ba) were measured on 55 presolar SiC grains from the Murchison meteorite, allowing identification of grains potentially contaminated with solar system material. The range of compositions of uncontaminated grains may constrain the amount of C-13 produced in parent AGB stars to a narrow range around the amount required to explain solar system s-process abundances. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码：587 / 590
页数：4
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