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SPECTRAL ENERGY DISTRIBUTIONS AND AGE ESTIMATES OF 39 GLOBULAR CLUSTERS IN M31
Ma, Jun1; Fan, Zhou1,2; de Grijs, Richard1,3; Wu, Zhenyu1; Zhou, Xu1; Wu, Jianghua1; Jiang, Zhaoji1; Chen, Jiansheng1
2009-06-01
Source PublicationASTRONOMICAL JOURNAL
Volume137Issue:6Pages:4884-4896
AbstractThis paper supplements Jiang et al., who studied 172 M31 globular clusters (GCs) and GC candidates from Battistini et al. on the basis of integrated photometric measurements in the Beijing-Arizona-Taiwan-Connecticut (BATC) photometric system. Here, we present multicolor photometric CCD data (in the BATC system) for the remaining 39 M31 GCs and candidates. In addition, the ages of 35 GCs are constrained by comparing our accurate photometry with updated theoretical stellar synthesis models. We use photometric measurements from the Galaxy Evolution Explorer in the far- and near-ultraviolet and Two Micron All Sky Survey infrared JHK(s) data, in combination with optical photometry. Except for two clusters, the ages of the other sample GCs are all older than 1 Gyr. Their age distribution shows that most sample clusters are younger than 6 Gyr, with a peak at similar to 3 Gyr, although the "usual" complement of well-known old GCs (i.e., GCs of similar age as the majority of the Galactic GCs) is present as well.
KeywordGalaxies: Evolution Galaxies: General Galaxies: Individual (M31) Galaxies: Star Clusters Galaxies: Stellar Content
DOI10.1088/0004-6256/137/6/4884
Indexed BySCI
Language英语
WOS IDWOS:000266662300031
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/8355
Collection光学天文研究部
Affiliation1.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China
3.Univ Sheffield, Dept Phys & Astron, Sheffield S3 7RH, S Yorkshire, England
Recommended Citation
GB/T 7714
Ma, Jun,Fan, Zhou,de Grijs, Richard,et al. SPECTRAL ENERGY DISTRIBUTIONS AND AGE ESTIMATES OF 39 GLOBULAR CLUSTERS IN M31[J]. ASTRONOMICAL JOURNAL,2009,137(6):4884-4896.
APA Ma, Jun.,Fan, Zhou.,de Grijs, Richard.,Wu, Zhenyu.,Zhou, Xu.,...&Chen, Jiansheng.(2009).SPECTRAL ENERGY DISTRIBUTIONS AND AGE ESTIMATES OF 39 GLOBULAR CLUSTERS IN M31.ASTRONOMICAL JOURNAL,137(6),4884-4896.
MLA Ma, Jun,et al."SPECTRAL ENERGY DISTRIBUTIONS AND AGE ESTIMATES OF 39 GLOBULAR CLUSTERS IN M31".ASTRONOMICAL JOURNAL 137.6(2009):4884-4896.
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