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| Paper: |
Pulsation and Mass Loss of AGB Stars in the Magellanic Cloud
Clusters NGC 1978 and NGC 419 |
| Volume: |
445, Why Galaxies Care about AGB Stars II: Shining Examples and Common Inhabitants |
| Page: |
127 |
| Authors: |
Kamath, D.; Wood, P. R.; Soszyński, I.; Lebzelter, T. |
| Abstract: |
We present results of a study of asymptotic giant branch
(AGB) stars in the Magellanic Cloud clusters NGC 1978 and
NGC 419. The aim of this work is to use
pulsation analysis as a means to study mass-loss on the AGB. We
derive pulsation masses for the AGB variables, from the lowest
luminosity O-rich variables to the most evolved infrared sources.
Our studies show that reliable pulsation masses can be determined
for AGB stars. We also use non-linear pulsation models to fit
the highly evolved AGB stars. Our models show that a substantial
amount of mass loss has occurred during the AGB evolution of these
stars. We compare our results to commonly-used mass-loss formulae
such as those of Vassiliadis & Wood (1993) and Blöcker (1995). |
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