出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：Observed large scatters in abundance ratios of neutron-capture elements relative to iron in metalpoor
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.
