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Mass-Losing and Pulsating AGB Stars in the Magellanic Clouds

  • Martin Groenewegen
Part of the Astrophysics and Space Science Library book series (ASSL, volume 283)

Abstract

I present some new results on mass-losing and pulsating stars in the LMC and SMC, based on an analysis of OGLE/MACHO light curves and DENIS/2MASS/ISO infrared data, for samples of AGB stars detected by IRAS, and by the recent ISOCAM “minisurvey” of the SMC

The conclusions are that (1) the scatter in the PL-relation at long periods is (much) larger than that for P < 400 days, (2) the SEDs of some carbon stars are not well fitted in the blue, indicating possibly some missing opacity problem in the model atmospheres, or that the effective temperatures are below 2600 K, the lowest temperature in the available model grid, and (3) the period-mass loss rate relation for C-rich SMC stars seems to follow that derived for Galactic carbon-rich Miras, suggesting no explicit dependence of mass loss rate on metallicity

Keywords

Stars: AGB and post-AGB Stars: mass-loss Magellanic Clouds 

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Copyright information

© Springer Science+Business Media Dordrecht 2003

Authors and Affiliations

  • Martin Groenewegen
    • 1
  1. 1.Instituut voor SterrenkundeLeuvenBelgium

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