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Mid-IR colors and surface brightness fluctuations as tracers of stellar mass-loss in the TP-AGB

Published online by Cambridge University Press:  30 December 2019

Rosa A. González-Lópezlira
Rosa A. González-Lópezlira*
Affiliation:
Instituto de Radioastronomia y Astrofisica, UNAM Campus Morelia, Michoacan, Mexico, C.P. 58089, email: [email protected]
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Abstract

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I present integrated colors and surface brightness fluctuation magnitudes in the mid-IR, derived from stellar population synthesis models that include the effects of the dusty envelopes around TP-AGB stars. The models are based on the Bruzual & Charlot CB* isochrones; they are single-burst, range in age from a few Myr to 14 Gyr, and comprise metallicities between Z = 0.0001 and Z = 0.04. I compare these models to mid-IR data of AGB stars and star clusters in the Magellanic Clouds, and study the effects of varying self-consistently the mass-loss rate, the stellar parameters, and the output spectra of the stars plus their dusty envelopes.

Keywords

stars: AGB and post-AGBstars: mass lossstars: carbonstars: evolutionMagellanic Cloudsinfrared: starsgalaxies: stellar contentgalaxies: star clusters
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 14 , Symposium S343: Why Galaxies Care About AGB Stars: A Continuing Challenge through Cosmic Time , August 2018 , pp. 411 - 412
Copyright
© International Astronomical Union 2019 

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