双星对星族合成研究的重要性

J4 ›› 2013, Vol. 12 ›› Issue (10): 23-26.

双星对星族合成研究的重要性

大理学院天文学与科技史研究所，云南大理 671003

收稿日期:2013-08-21 修回日期:2013-09-13 出版日期:2013-10-15 发布日期:2013-10-15
作者简介:李忠木，教授，主要从事星族合成、星系和星团研究.
基金资助:
国家自然科学基金资助项目（11203005）;云南省应用基础研究项目(2009CD093);云南省教育厅科研基金重点项目（2010Z004）

The Importance of Binaries in Stellar Population Synthesis Studies

Institute for Astronomy and History of Science and Technology, Dali University, Dali,Yunnan 671003,China

Received:2013-08-21 Revised:2013-09-13 Online:2013-10-15 Published:2013-10-15

摘要/Abstract

摘要：

观测显示星系中的大部分恒星是双星，因此星族合成研究必须考虑双星的作用。综述双星对星族合成研究的重要性。
主要讨论了双星对早型星系和球状星团的能谱、谱指数、颜色、颜色-星等图、星系参数确定和恒星形成历史研究的影响。主要结论为双星有助于对星系和星团的光谱、颜色-星等图的解释，以及对星系和星团多个参数的准确确定。因此，双星是准确星族合成研究的必然要求。

关键词: 双星, 星族合成, 星系, 星团

Abstract:

Observations show that most stars are in binaries, which indicates that binaries should be taken into account in stellar population synthesis studies. This paper reviews the importance of binaries in the studies of stellar populations. The effects of binaries on the spectral energy distributions, line strength indices, colours, colour-magnitude diagrams, parameter determinations, and star formation histories are discussed. The review shows that binaries are very helpful for the explanations of spectra and colour-magnitude diagrams of galaxies and star clusters, and they also affect the determinations of many important parameters. Therefore, the inclusion of binaries is a natural trend for future stellar population studies.

Key words: binaries, stellar population synthesis, galaxies, star clusters

中图分类号:

P153

李忠木. 双星对星族合成研究的重要性[J]. J4, 2013, 12(10): 23-26.

LI Zhong-Mu. The Importance of Binaries in Stellar Population Synthesis Studies[J]. J4, 2013, 12(10): 23-26.

参考文献

〔1〕Eggleton P. Evolutionary Processes in Binary and Multiple
Stars〔M〕. Cambridge：Cambridge University Press，2006：
17-253.
〔2〕Salpeter E. The Luminosity Function and Stellar Evolution
〔J〕. Astrophysical Journal，1955，121：161-167.
〔3〕Zhang F H，Han Z W, Li L F，et al. Inclusion of binaries in
evolutionary population synthesis〔J〕. Monthly Notices of
the Royal Astronomical Society，2005，357（3）：1088-1103.
〔4〕Li Z，Han Z W. How Binary Interactions Affect Spectral Stel?
lar Population Synthesis〔J〕.Astrophysical Journal，2008，
685（1）：225-234.
〔5〕Li Z M，Han Z W.Fitting formulae for the effects of binary in?
teractions on lick indices and colors of stellar populations
〔J〕.Research in Astronomy and Astrophysics，2009，9（2）：
191-204.
〔6〕Li Z M，Zhang L Y，Liu J Z. Integrated spectral energy distri?
butions of binary star composite stellar populations〔J〕.
Monthly Notices of the Royal Astronomical Society，2012，
424(2)：874-883.
〔7〕Li Z M，Mao C Y,Chen L, et al. The potential importance of
binary evolution for UV -optical spectral fitting of early -
type galaxies〔J〕.Astrophysical Journal，2013,776（1）:37-62.
〔8〕Li Z M，Mao C Y，Li R H，et al. A binary study of colormag?
nitude diagrams of 12 globular clusters〔J〕.Research in As?
tronomy and Astrophysics，2010，10（2）：135-141.
〔9〕Li Z M, Mao C Y, Chen L,et al. Combined Effects of Bina?
ries and Stellar Rotation on the Color-Magnitude Diagrams
of Intermediate-age Star Clusters〔J〕. Astrophysical Jour?
nal Letters, 2012, 761(2):22-26.
〔10〕Li Z M，Zhang F H，Zhan W H. A Study of Binary Stellar
Population Synthesis of Elliptical Galaxies〔J〕. Chinese
Journal of Astronomy and Astrophysics，2006，6（6）：669-
679.
〔11〕Li Z, Han Z, Zhang F. Potential of colors for determining
age and metallicity of stellar populations〔J〕. Astronomy
and Astrophysics,2007, 464(3): 853-857.
〔12〕Li Z M, Han Z. Colour pairs for constraining the age and
metallicity of stellar populations〔J〕. Monthly Notices of
the Royal Astronomical Society, 2008, 385(3): 1270-1278.
〔13〕Zhang F H，Han Z W，Li L F，et al.The effects of ultraviolet
photometry and binary interactions on photometric redshift
and galaxy morphology〔J〕. Monthly Notices of the Royal
Astronomical Society，2010，408（2）：1283-1306.
〔14〕Hurley J R，Tout C A，Pols O R. Evolution of binary stars
and the effect of tides on binary populations〔J〕.Monthly
Notices of the Royal Astronomical Society，2002，329（4）：
897-928.
〔15〕Eldridge J J, Stanway E R. Spectral population synthesis
including massive binaries〔J〕. Monthly Notices of the
Royal Astronomical Society, 2009, 400（2）：1019-1028.
〔16〕Li Z M，Han Z W. An isochrone data base and a rapid mod?
el for stellar population synthesis〔J〕.Monthly Notices of
the Royal Astronomical Society，2008，387（1）：105-114.
〔17〕Hernández-Pérez F, Bruzual G.Revisiting binary stars in
population synthesis models〔J〕.Monthly Notices of the
Royal Astronomical Society，2013，431（3）：2612- 2621.

[1]	李忠木，罗起苹，李玉栋. 颜色-星等图研究的新模型——新型星族合成[J]. J4, 2016, 1(6): 19-22.
[2]	罗起苹，李忠木. 球状星团Hodge11、NGC1466、NGC2257的颜色-星等图研究[J]. , 2016, 1(12): 26-29.
[3]	李茂材, 李忠木, 陈丽, 张茜, 毛彩艳. Lick/IDS谱指数的定义及应用[J]. J4, 2014, 13(6): 38-41.
[4]	李忠木. 双星星族合成及其研究进展[J]. J4, 2013, 12(4): 29-32.