Hostname: page-component-8448b6f56d-42gr6 Total loading time: 0 Render date: 2024-04-24T05:10:45.704Z Has data issue: false hasContentIssue false
  • English
  • Français

The role of binary stars in stellar population synthesis

Published online by Cambridge University Press:  01 April 2008

Zhongmu Li  and
Zhanwen Han
Zhongmu Li
Affiliation:
National Astronomical Observatories/Yunnan Observatory, the Chinese Academy of Sciences, Kunming, 650011, China Graduate University of the Chinese Academy of Sciences email: zhongmu.li@gmail.com
Zhanwen Han
Affiliation:
National Astronomical Observatories/Yunnan Observatory, the Chinese Academy of Sciences, Kunming, 650011, China
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

More than about 50% stars are in binaries, but the effects of binary evolution were not taken into account in most previous stellar population synthesis studies. In fact, binaries can affect the integrated peculiarities such as spectral energy distributions (SEDs), colours, and line-strength indices of populations. With the effects of binary stars taken into account, some new results for stellar population studies will be shown. We discuss how binaries affect the colours and Lick indices of simple stellar populations, and the measurement of stellar ages and metallicities.

Keywords

Galaxies: stellar contentgalaxies: evolutiongalaxies: formation
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 4 , Symposium S252: The Art of Modeling Stars in the 21st Century , April 2008 , pp. 359 - 364
Copyright
Copyright © International Astronomical Union 2008

References

Bruzual, G. & Charlot, S. 2003, MNRAS 344, 1000CrossRefGoogle Scholar
Chabrier, G. 2003, ApJ 586, L133CrossRefGoogle Scholar
Fioc, M. & Rocca-Volmerange, B. 1997, A&A 326, 950Google Scholar
Han, Z., Podsiadlowski, P., & Lynas-Gray, A. E. 2007, MNRAS 380, 1098CrossRefGoogle Scholar
Hurley, J. R., Tout, C. A., & Pols, O. R. 2002, MNRAS 329, 897CrossRefGoogle Scholar
Li, Z. & Han, Z. 2007a, MNRAS 385, 1270CrossRefGoogle Scholar
Li, Z. & Han, Z. 2007b, A&A 471, 795Google Scholar
Li, Z. & Han, Z. 2007c, MNRAS, in press, arXiv:0708.1204Google Scholar
Li, Z., Zhang, F., & Han, Z. 2006, ChJA&A 6, 669Google Scholar
Li, Z., Han, Z. & Zhang, F. 2007, A&A 464, 853Google Scholar
Maraston, C. 2005, MNRAS 362, 799CrossRefGoogle Scholar
Salpeter, E. E. 1955, ApJ 121, 161CrossRefGoogle Scholar
Thomas, D., Maraston, C., Bender, R., & Mendes de Oliveira, C. 2005, ApJ 621, 673CrossRefGoogle Scholar
Vazdekis, A., Cenarro, A. J., Gorgas, J., Cardiel, N., & Peletier, R. F. 2003, MNRAS 340, 1317CrossRefGoogle Scholar
Worthey, G. 1994, ApJS 95, 107CrossRefGoogle Scholar