Astronomy and Astrophysics – Astrophysics
Scientific paper
Jul 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aipc..847...92i&link_type=abstract
ORIGIN OF MATTER AND EVOLUTION OF GALAXIES: International Symposium on Origin of Matter and Evolution of Galaxies 2005: New Hori
Astronomy and Astrophysics
Astrophysics
Chemical Composition And Chemical Evolution, Abundances, Chemical Composition, Stellar Structure, Interiors, Evolution, Nucleosynthesis, Ages, Population Ii Stars
Scientific paper
Observed large scatters in abundance ratios of neutron-capture elements relative to iron in metal-poor stars may suggest incomplete mixing of the interstellar medium at the beginning of the Galaxy. On the other hand, recent studies of metal-poor stars show considerable small dispersions for abundance ratios of C-Zn. We discuss whether such variations of scatters in abundance ratios can be explained by a consistent chemical evolution model. We also attempt to constrain the origins of r-process elements, comparing predictions by an inhomogeneous chemical evolution model with new observational results with Subaru HDS.
Aoki Wako
Ishimaru Yuhri
Prantzos Nikos
Ryan Sean G.
Wanajo Shin-ya
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