【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
【机 构】
：
National Astronomical Observatories
【基金项目】
：
国家自然科学基金;Arizona State University,the University of Arizona and Western Connecticut State University
论文部分内容阅读
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.
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