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The Challenges of Abundance Analysis for Long-Period Variables
Univ Vienna, Dept Astrophys, A-1010 Vienna, Austria..
Univ Vienna, Dept Astrophys, A-1010 Vienna, Austria..
Natl Opt Astron Observ, Tucson, AZ 85726 USA..
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Theoretical Astrophysics.
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2015 (English)In: WHY GALAXIES CARE ABOUT AGB STARS III: A CLOSER LOOK IN SPACE AND TIME, ASTRONOMICAL SOC PACIFIC , 2015, Vol. 497, 283-288 p.Conference paper (Refereed)Text
Abstract [en]

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.

Place, publisher, year, edition, pages
ASTRONOMICAL SOC PACIFIC , 2015. Vol. 497, 283-288 p.
National Category
Astronomy, Astrophysics and Cosmology
URN: urn:nbn:se:uu:diva-294837ISI: 000371098100053OAI: oai:DiVA.org:uu-294837DiVA: diva2:936293
Conference on Why Galaxies Care About AGB Stars III: A Closer Look in Space and Time, JUL 28-AUG 01 2014, Univ Vienna, Vienna, AUSTRIA
Available from: 2016-06-13 Created: 2016-05-27 Last updated: 2016-06-13Bibliographically approved

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Höfner, SusanneHeiter, Ulrike
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