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Star clusters and single stellar populations

Published online by Cambridge University Press:  18 January 2010

Licai Deng  and
Yu Xin
Licai Deng
Affiliation:
National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China email: licai@bao.ac.cn
Yu Xin
Affiliation:
Argelander Institute for Astronomy, Unversity of Bonn, 53121 Bonn, Germany email: yxin@astro.uni-bonn.de
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Abstract

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Star clusters are ideal laboratories to test the theory of stellar evolution and provide very tight constraints on the concept of single stellar poputions (SSPs). Observations show that some stars fail to conform to the theoretical evolutionary scenario applicable to single stars. These special objects, particularly blue stragglers, present a challenge to our current theory of stellar evolution. They may be very important in the context of the integrated spectral properties of clusters. Here, we review the construction of SSP models, both empirically using star clusters and theoretically based on binary-interaction theory.

Keywords

blue stragglersopen clusters and associations: generalGalaxy: stellar content
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 5 , Symposium S266: Star clusters: basic galactic building blocks throughout time and space , August 2009 , pp. 304 - 311
Copyright
Copyright © International Astronomical Union 2010

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