Ven. 26/05/2023 14:00 Andromede, Bâtiment 11, Etage 3
REDDY Eswara (Indian Institute of Astrophysics)
Current understanding of lithium anomaly in red giants
It is well understood the light element lithium in stars generally gets destroyed. Thus, stars are known as lithium sinks. Contrary to this general understanding a few stars show large amount of lithium. In some rare cases this amount exceeds the present interstellar value of A(Li)= 3.2 dex by about a factor of 10. This has been a nagging problem in stellar astrophysics for more than 4 decades since its first discovery in early 1980s. In this discuss the problem and observational efforts leading to evidence of large lithoum origin in red giants.
Pour plus d'informations, merci de contacter Marcowith A.