Speaker
Prof.
Wako Aoki
(National Astronomical Observatory of Japan)
Description
Chemical compositions of variety types of stars contain useful information to constrain the nucleosynthesis in the universe. The products of nuclear reactions inside stars sometimes appear at the surface of highly red giants in the very late stage of stellar evolution. On the other hand, most of stars before that, including the Sun as a main-sequence star, preserve compositions of elements provided by the previous generations of stars and supernova explosions. In this lecture, I present some examples of studies of stellar chemical compositions to constrain nucleosynthesis in stars and supernovae. The methods to determine elemental and isotopic abundances of stars are also presented.
