'Status update' for the AGB scenario for the formation of multiple populations. Issue Volume 14:Issue S351(2019) (May 2019)

• Record Type: Journal Article
• Authors: D'Antona, Francesca
• Editors: Bragaglia, Angela; Davies, Melvyn; Sills, Alison; Vesperini, Enrico
• Is Part Of: Proceedings of the International Astronomical Union. Volume 14:Issue S351(2019)
• Page Start: 289
• Page End: 292
• Publication Date: 2019-05
• Subjects: globular clusters: general, -- stars: AGB and post-AGB; Astronomy -- Congresses; Astronomy -- Periodicals; 520
• DOI: 10.1017/S1743921319006641
• Languages: English
• ISSNs: 1743-9213

Abstract

Abstract: The Asymptotic Giant Branch (AGB) scenario for the formation of multiple populations has been quantitatively studied in the course of the last twenty years, examining the aspects both of nucleosynthesis and of the dynamics of formation of new stars in a cooling flow at the center of the first generation cluster, and of the following N–body evolution. The large complexity of these studies finds many validations in the properties of multiple populations. Here I shortly summarize recent accomplishments in the study of the evolution of massive AGBs and super–AGBs including the explanation of anomalous high lithium abundances in 'extreme' second generation stars in ω Cen and NGC 2808.