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Towards a working model for the abundance variations within globular cluster stars

Published online by Cambridge University Press:  23 December 2005

Francesca D'Antona
Affiliation:
INAF Osservatorio di Roma, I-00040 Monteporzio (Italy) email: dantona@mporzio.astro.it, ventura@mporzio.astro.it
Paolo Ventura
Affiliation:
INAF Osservatorio di Roma, I-00040 Monteporzio (Italy) email: dantona@mporzio.astro.it, ventura@mporzio.astro.it
Vittoria Caloi
Affiliation:
INAF Istituto di Astrofisica Spaziale, via del Fosso del Cavaliere, 00100 Rona, Italy email: vittoria.caloi@rm.iasf.cnr.it
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Abstract

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We summarize the results of recent model computation for massive Asymptotic Giant Branch stars of low metallicity, whose winds are thought to be the matter from which second generation stars are born in Globular Clusters (GCs) showing abundance anomalies. The yields of these ejecta are highly uncertain, but our models in the range of masses 3.5–4.5M[odot ] can reasonably explain some of the chemical anomalies of Globular Cluster stars.

Type
Contributed Papers
Copyright
© 2005 International Astronomical Union