Astronomy and Astrophysics – Astronomy
Scientific paper
Apr 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010iaus..262...48g&link_type=abstract
Stellar Populations – Planning for the Next Decade, Proceedings of the International Astronomical Union, IAU Symposium, Volume 2
Astronomy and Astrophysics
Astronomy
Stars: Agb And Post–Agb — Stars: Carbon — Stars: Mass Loss — Magellanic Clouds — Infrared: Stars — Stars: Circumstellar Matter — Stars: Evolution — Galaxies: Evolution — Galaxies: Stellar Content
Scientific paper
We present optical and IR integrated colors and SBF magnitudes, computed from stellar population synthesis models that include emission from the dusty envelopes surrounding mass-loosing TP-AGB stars. We explore the effects of varying the mass-loss rate by one order of magnitude around the fiducial value, modifying accordingly both the stellar parameters and the output spectra of the TP-AGB stars plus their dusty envelopes. We compare these models to optical and near-IR data of single AGB stars and Magellanic star clusters. Neither broad-band colors nor SBF measurements in the optical or the near-IR can discern global changes in the mass-loss rate of a stellar population. However, we predict that mid-IR SBF measurements can pick out such changes, and actually resolve whether a relation between metallicity and mass-loss exists.
Gustavo Bruzual-A.
Ballesteros-Paredes Javier
Charlot Stephane
González-Lópezlira Rosa A.
Loinard Laurent
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