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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 ,
Paolo Ventura  and
Vittoria Caloi
Francesca D'Antona
Affiliation:
INAF Osservatorio di Roma, I-00040 Monteporzio (Italy) email: [email protected], [email protected]
Paolo Ventura
Affiliation:
INAF Osservatorio di Roma, I-00040 Monteporzio (Italy) email: [email protected], [email protected]
Vittoria Caloi
Affiliation:
INAF Istituto di Astrofisica Spaziale, via del Fosso del Cavaliere, 00100 Rona, Italy email: [email protected]
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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.

Keywords

Globular clustersstars: AGB stars and post-AGBnucleosynthesis
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 1 , Symposium S228: From Lithium to Uranium: Elemental Tracers of Early Cosmic Evolution , May 2005 , pp. 391 - 392
Copyright
© 2005 International Astronomical Union