Nucleosynthesis and Mixing in Metal-Rich Stars

Explore stellar evolution and nucleosynthesis in metal-rich environments through this 35-minute lecture that examines star formation in spiral and starburst galaxy bulges. Learn about new stellar evolutionary models covering both low-to-massive stellar ranges (1-8M⊙ and 11-30M⊙) across various metallicities from sub-solar to six times solar metallicity. Discover how the 'third dredge up' mixing process becomes less efficient at higher metallicities, resulting in yields dominated by H-burning products rather than primary C and s-process products in low-mass stars. Examine how increasing metallicity affects massive evolved stellar models, including earlier stripped supernovae occurrence, higher mass requirements for black hole formation, and varying elemental yields. Understand the metallicity-dependent changes in yields of elements like C, Si, S, O, Ne, Mg, and Eu in core collapse supernovae.