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Thermally-pulsing asymptotic giant branch stars in the Magellanic Clouds

Published online by Cambridge University Press:  01 July 2008

Paola Marigo ,
Léo Girardi ,
Alessandro Bressan ,
Martin A. T. Groenewegen ,
Bernhard Aringer ,
Laura Silva  and
Gian Luigi Granato
Paola Marigo
Affiliation:
Dipartimento di Astronomia, Università di Padova, Vicolo dell'Osservatorio 2, I-35122 Padova, Italy — email: paola.marigo@unipd.it
Léo Girardi
Affiliation:
Osservatorio Astronomico di Padova – INAF, Vicolo dell'Osservatorio 5, I-35122 Padova, Italy
Alessandro Bressan
Affiliation:
Dipartimento di Astronomia, Università di Padova, Vicolo dell'Osservatorio 2, I-35122 Padova, Italy — email: paola.marigo@unipd.it
Martin A. T. Groenewegen
Affiliation:
Royal Observatory of Belgium, Ringlaan 3, B-1180 Brussels, Belgium
Bernhard Aringer
Affiliation:
Department of Astronomy, University of Vienna, Tuerkenschanzstr. 17, A1180 Wien, Austria
Laura Silva
Affiliation:
Osservatorio Astronomico di Trieste – INAF, Via Tiepolo 11, I-34131 Trieste, Italy
Gian Luigi Granato
Affiliation:
Osservatorio Astronomico di Trieste – INAF, Via Tiepolo 11, I-34131 Trieste, Italy
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Abstract

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We present the latest results of a theoretical project aimed at investigating the properties of thermally-pulsing asymptotic giant branch (TP-AGB) stars in different host systems. For this purpose, we have recently calculated calibrated synthetic TP-AGB tracks — covering a wide range of metallicities (0.0001 ≤ Z ≤ 0.03) up to the complete ejection of the envelope by stellar winds (Marigo & Girardi 2007) — and used them to generate new sets of stellar isochrones (Marigo et al. 2008). The latter are converted to about 25 different photometric systems, including the mid-infrared filters of Spitzer and AKARI as the effect of circumstellar dust from AGB stars is taken into account. First comparisons with AGB data in the MC field and stellar clusters are discussed.

Keywords

stars: AGB and post-AGBstars: carbonstars: evolutionglobular clusters: individual (47 Tuc)Magellanic Cloudsinfrared: stars
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 4 , Symposium S256: The Magellanic System: Stars, Gas, and Galaxies , July 2008 , pp. 385 - 390
Copyright
Copyright © International Astronomical Union 2009

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