COSMIC-LAB: Unexpected Results from High-resolution Spectra of AGB Stars in Globular Clusters
We have used high-resolution spectra, acquired with UVES@ESO-VLT, to determine the chemical abundances of different samples of AGB and RGB stars in 4 Galactic globular clusters, namely 47Tuc, NGC3201, M22 and M62. For almost all the analyzed AGB stars we found a clear discrepancy between the iron...
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| Format: | Doctoral Thesis |
| Language: | en |
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Alma Mater Studiorum - Università di Bologna
2015
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| Online Access: | http://amsdottorato.unibo.it/7234/ |