Speaker
Description
I will summarize the origin of elements using my Galactic chemical evolution model; only light elements such as hydrogen and helium were produced during the Big Bang. Heavier elements then helium are created inside stars. Alpha elements are mainly produced from core-collapse supernovae, while the majority of iron-peak elements are from Type Ia supernovae. Neutron-capture elements are produced by asymptotic giant branch stars, electron-capture supernovae, magneto-rotational supernovae, collapsars, and/or neutron-star mergers. I will also discuss the (surprisingly high) fluorine abundance recently obtained for a distant galaxy (at redshift 4.4). Then I will show predictions from more realistic, chemodynamical simulations of Milky Way-type galaxies, which include the effects of stellar migrations and inhomogeneous enrichment, and compare with observational data from the galactic archaeology surveys.
