Astronomy and Astrophysics – Astrophysics
Scientific paper
2002-08-21
Astron.Astrophys. 395 (2002) 179-188
Astronomy and Astrophysics
Astrophysics
10 pages, 6 figures
Scientific paper
10.1051/0004-6361:20021242
We present the results of mid-resolution spectroscopy in the LiI 6708 AA spectral region of Asymptotic Giant Branch (AGB) stars belonging to young open clusters of the Large Magellanic Cloud. Most stars belong to the clusters NGC 1866 and NGC 2031, which have an age of ~ 150 Myr. Lithium lines of different strength are detected in the spectra of stars evolving along the AGB, not always in agreement with theoretical predictions. We also analyze the infrared luminosities (ISOCAM data) of these stars, to discuss if their evolutionary phase precedes or follows the lithium production stage.
D'Antona Francesca
Lario Pedro Garcia
Maceroni Carla
Plez Bertrand
Testa Vincenzo
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