Heavy element production in the early galaxy

摘要

We present some general features of the heavy element signature as a function of metallicity indicating the chemical evolution of the Galaxy. The aim is to emphasize that the heavy element production in the Galaxy is a powerful tool to understand how the r-process and s-process nucleosynthesis have contributed to the production of the heavy elements in the course of the galaxy evolution. We also discuss some current problems encountered in modeling the stellar sites of the above processes.