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Expected Differences between AGB Stars in the LMC and the SMC Due to Differences in Chemical Composition

Published online by Cambridge University Press:  25 May 2016

Ju. Frantsman
Ju. Frantsman*
Affiliation:
Astronomical Institute, Latvian University, Raina Blvd. 19, Riga, LV-1586, LATVIA

Abstract

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Certain aspects of the AGB population, such as the relative number of M and N stars, the mass loss rates, and the initial masses of carbon-oxygen cores, depend on the initial heavy element abundance Z. I have calculated synthetic populations of AGB stars for different initial Z values taking into consideration the evolution of single and close binary stars. I present the results of population syntheses of AGB stars in clusters as a function of different initial chemical compositions. The relation for the tip luminosity of AGB stars versus cluster age as a function of Z is presented and is used to determine the ages for a number of clusters in the LMC and the SMC, including clusters with no previous age determinations.

Type
Part 5. Stellar Populations and Surveys
Information
Symposium - International Astronomical Union , Volume 190: New Views of the Magellanic Clouds , 1999 , pp. 383 - 384
Copyright
Copyright © Astronomical Society of the Pacific 1999 

References

Frantsman, Ju.L. 1988, Ap&SS, 145, 251 Google Scholar
Westerlund, B.E., et al. 1991, A&AS, 91, 425 Google Scholar