Bengt Gustafsson (Uppsala University): Semi-empirical yields of nuclei from AGB stars and the origin of carbon in the Galactic disk

Thursday 2 Jun 2022, 14:00 → 15:00 Europe/Stockholm

90103 (Ångströmlaboratoriet)

Title: Semi-empirical yields of nuclei from AGB stars and the origin of carbon in the Galactic disk
Speaker: Bengt Gustafsson
Affiliation: Uppsala University
Time: Thursday 2 June 2022, 1400 to 1500
Location: 90103Å and also online at https://uu-se.zoom.us/j/62091586806

Abstract:

The study of the building up of chemical elements in the Galaxy is plagued by numerous free parameters, some of them related to the production, mixing and mass loss of stars on the Asymptotic Giant Branch, resulting in enrichment of the Galaxy gas of several heavy elements from these stars, their so-called yields. 

 

The high accuracy now obtainable in estimating abundances and ages of solar-type stars has, however, opened up the possibility to constrain the yields of AGB stars semi-empirically.  This possibility will be exemplified by a study of the key element carbon.