Spectral energy distributions and age estimates of 78 star clusters in M33

	Spectral energy distributions and age estimates of 78 star clusters in M33
	Ma, J; Zhou, X; Chen, JS; Wu, H; Jiang, ZJ; Xue, SJ; Zhu, J
刊名	ASTRONOMICAL JOURNAL
	2002-06-01
卷号	123 期号:6 页码:3141-3153
关键词	galaxies : evolution galaxies : individual (M33) galaxies : star clusters
英文摘要	In this third paper of our series, we present CCD spectrophotometry of 78 star clusters that were detected by Chandar, Bianchi, & Ford in the nearby spiral galaxy M33. CCD images of M33 were obtained as a part of the BATC Multicolor Sky Survey of the sky in 13 intermediate-band filters from 3800 to 10000 Angstrom. By aperture photometry, we obtain the spectral energy distributions of these 78 star clusters. As Chandar, Bianchi, & Ford did, we estimate the ages of our sample clusters by comparing the photometry of each object with theoretical stellar population synthesis models for different values of metallicity. We find that the sample clusters formed continuously in M33 from similar to3 x 10(6) to 10(10) yr. This conclusion is consistent with Chandar, Bianchi, & Ford. The results also show that there are two peaks in cluster formation at similar to8 x 10(6) and similar to10(9) yr in these clusters.
收录类别	SCI
语种	英语
WOS记录号	WOS:000175830300015
内容类型	期刊论文
源URL	[http://ir.bao.ac.cn/handle/114a11/8562]
专题	国家天文台_光学天文研究部
作者单位	Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China
推荐引用方式 GB/T 7714	Ma, J,Zhou, X,Chen, JS,et al. Spectral energy distributions and age estimates of 78 star clusters in M33[J]. ASTRONOMICAL JOURNAL,2002,123(6):3141-3153.
APA	Ma, J.,Zhou, X.,Chen, JS.,Wu, H.,Jiang, ZJ.,...&Zhu, J.(2002).Spectral energy distributions and age estimates of 78 star clusters in M33.ASTRONOMICAL JOURNAL,123(6),3141-3153.
MLA	Ma, J,et al."Spectral energy distributions and age estimates of 78 star clusters in M33".ASTRONOMICAL JOURNAL 123.6(2002):3141-3153.