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| Paper: |
The Challenges of Abundance Analysis for Long–Period Variables |
| Volume: |
497, Why Galaxies Care about AGB Stars III: A Closer Look in Space and Time |
| Page: |
283 |
| Authors: |
Lebzelter, T.; Nowotny, W.; Hinkle, K. H.; Höfner, S.; Aringer, B.; Heiter, U. |
| Abstract: |
The measurement of elemental abundances of Asymptotic Giant Branch
(AGB) stars is a highly challenging task that so far has not been
solved in a satisfactory way. We report here on our efforts to
confront predictions from hydrostatic and dynamical model atmospheres
with observational results based on
high-resolution spectra of variable and non-variable giants
in the globular cluster 47 Tuc. Our goal is to estimate the impact
of atmospheric dynamics on the abundance determination. |
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