Astronomy and Astrophysics – Astrophysics
Scientific paper
May 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008aipc.1016..375n&link_type=abstract
ORIGIN OF MATTER AND EVOLUTION OF GALAXIES: The 10th International Symposium on Origin of Matter and Evolution of Galaxies: From
Astronomy and Astrophysics
Astrophysics
Origin, Formation, And Abundances Of The Elements, Mass And Mass Distribution, Interstellar Medium And Nebulae In External Galaxies
Scientific paper
Primitive meteorites and interplanetary dust particles contain presolar grains: pristine solid samples of stellar material. These grains of Stardust are a new source of information on nuclear astrophysics, complementary to traditional astronomical observations. Identified phases include silicates, oxides, SiC, graphite (including sub-grains of metal and carbides), and silicon nitride. Most grains can be attributed to either asymptotic giant branch (AGB) stars or Type II supernovae, based on their isotopic compositions. Detailed high-precision isotopic data for the grains provide important and unique constraints on nuclear processes occurring in these stars.
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