Estimating the metallicity of old star clusters in M33

被引：3

作者：

Ma, J ^{[1
]}

Zhou, X ^{[1
]}

Wu, H ^{[1
]}

Chen, JS ^{[1
]}

Jiang, ZJ ^{[1
]}

Xue, SJ ^{[1
]}

Zhu, J ^{[1
]}

机构：

[1] Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China

来源：

CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS | 2002年 / 2卷 / 02期

关键词：

galaxies : individual (M33); galaxies : evolution; galaxies : star clusters;

D O I：

10.1088/1009-9271/2/2/127

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Based on the method proposed by Kong et al. and on the multi-color spectrophotometry by Ma et al., we estimate the metallicities of 16 old star clusters in the nearby spiral galaxy M33, ten of which are halo globular clusters. These old clusters are all metal poor, the range of metallicity ([Fe/H]) is from -0.14 to -2.12. In general, our results are consistent with those derived by other methods, such as integrated spectra and photometry, and our study confirms the reliability of the method of Kong et al.

引用

页码：127 / 132

页数：6

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