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Dynamical implications of multiple stellar populations

Published online by Cambridge University Press:  01 August 2006

Alison I. Sills  and
Jonathan M. Downing
Alison I. Sills
Affiliation:
Department of Physics and Astronomy, McMaster University, 1280 Main Street West, Hamilton, ON, L8S 4M1, Canada email: asills@mcmaster.ca
Jonathan M. Downing
Affiliation:
Department of Physics and Astronomy, McMaster University, 1280 Main Street West, Hamilton, ON, L8S 4M1, Canada email: asills@mcmaster.ca
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Abstract

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We investigate some implications of having two star formation episodes in globular clusters, rather than the traditional single-burst approximation. Evidence for more than one stellar generation is accumulating in observations of abundances of elements lighter than iron in globular cluster stars, and is thought to imply some self-enrichment of the globular cluster gas. In particular, we explore models based on the assumption that the self-enrichment comes from an early generation of asymptotic giant branch (AGB) stars.

Keywords

stars: AGB and post-AGBglobular clusters: generalglobular clusters: individual (NGC 2808)
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 2 , Highlights of Astronomy 14: Highlights of Astronomy , August 2006 , pp. 436 - 437
Copyright
Copyright © International Astronomical Union 2007

References

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Portegies Zwart, S. F., McMillan, S. L. W., Hut, P., & Makino, J. 2001, MNRAS, 321, 199Google Scholar