THE ISOTOPIC COMPOSITIONS AND STELLAR SOURCES OF METEORITIC GRAPHITE GRAINS

被引：50
作者：
AMARI, S
HOPPE, P
ZINNER, E
LEWIS, RS
机构：
[1] UNIV CHICAGO,ENRICO FERMI INST,CHICAGO,IL 60637
[2] WASHINGTON UNIV,DEPT PHYS,ST LOUIS,MO 63130
来源：
NATURE | 1993年 / 365卷 / 6449期
关键词：
Isotopic compositions - Meteoritic graphite grains - Stellar sources;
D O I：
10.1038/365806a0
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
The isotopic compositions of interstellar graphite grains in meteorites provide a record of the stellar environments in which they formed.The grains have C-12/C-13 ratios that range far from the terrestrial value, as well as large variations in N-14/N-15 and O-16/O-18, and pronounced Mg-29 excesses from the decay of extinct Al-26. This isotopic variability indicates several types of stellar source, including asymptotic giant branch stars, Wolf-Rayet stars and novae.
引用
收藏
页码：806 / 809
页数：4
相关论文
共 20 条
[1]   INTERSTELLAR SIC WITH UNUSUAL ISOTOPIC COMPOSITIONS - GRAINS FROM A SUPERNOVA [J].
AMARI, S ;
HOPPE, P ;
ZINNER, E ;
LEWIS, RS .
ASTROPHYSICAL JOURNAL, 1992, 394 (02) :L43-L46
[2]  
ASH RD, 1993, METEORITICS, V28, P318
[3]  
BUSSO M, 1985, ASTRON ASTROPHYS, V151, P205
[4]   THERMONUCLEAR REACTION-RATES .5. [J].
CAUGHLAN, GR ;
FOWLER, WA .
ATOMIC DATA AND NUCLEAR DATA TABLES, 1988, 40 (02) :283-334
[5]   EXTINCT RADIOACTIVITIES - TRAPPED RESIDUALS OF PRESOLAR GRAINS [J].
CLAYTON, DD .
ASTROPHYSICAL JOURNAL, 1975, 199 (03) :765-769
[6]   CARBON (C-12/C-13) AND OXYGEN (O-16/O-17) ISOTOPIC-RATIOS IN 7 EVOLVED STARS [J].
DOMINY, JF ;
WALLERSTEIN, G .
ASTROPHYSICAL JOURNAL, 1987, 317 (02) :810-818
[7]   ON THE ROLE OF LOW-MASS ASYMPTOTIC GIANT BRANCH STARS IN PRODUCING A SOLAR-SYSTEM DISTRIBUTION OF S-PROCESS ISOTOPES [J].
GALLINO, R ;
BUSSO, M ;
PICCHIO, G ;
RAITERI, CM ;
RENZINI, A .
ASTROPHYSICAL JOURNAL, 1988, 334 (01) :L45-L49
[8]  
HASHIMOTO M, 1993, NUCLEI IN THE COSMOS, P587
[9]  
HOPPE P, 1992, METEORITICS, V27, P235
[10]  
JUNGCK M, 1992, PURE 22NE METEORITE
12