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AGE AND MASS CONSTRAINTS FOR A YOUNG MASSIVE CLUSTER IN M31 BASED ON SPECTRAL ENERGY DISTRIBUTION FITTING
Ma, Jun1,2; Wang, Song1,3; Wu, Zhenyu1; Fan, Zhou1; Yang, Yanbin1; Zhang, Tianmeng1; Wu, Jianghua1; Zhou, Xu1; Jiang, Zhaoji1; Chen, Jiansheng1
2011-03-01
Source PublicationASTRONOMICAL JOURNAL
Volume141Issue:3
AbstractVDB0-B195D is a massive, blue star cluster in M31. It was observed as part of the Beijing-Arizona-Taiwan-Connecticut (BATC) Multicolor Sky Survey using 15 intermediate-band filters covering a wavelength range of 3000-10000 angstrom. Based on aperture photometry, we obtain its spectral energy distribution ( SED) as defined by the 15 BATC filters. We apply previously established relations between the BATC intermediate-band and the Johnson-Cousins UBVRI broadband systems to convert our BATC photometry to the standard system. A detailed comparison shows that our newly derived VRI magnitudes are fully consistent with previous results, while our new B magnitude agrees to within 2 sigma. In addition, we determine the cluster's age and mass by comparing its SED ( from 3000 to 20000 angstrom, comprising photometric data in the 15 BATC intermediate bands, optical broadband BVRI, and Two Micron All Sky Survey near-infrared JHKs data) with theoretical stellar population synthesis models, resulting in age and mass determinations of 60.0 +/- 8.0Myr and (1.1-1.6) x 10(5) M-circle dot, respectively. This age and mass confirms previous suggestions that VDB0-B195D is a young massive cluster in M31.
KeywordGalaxies: Individual (M31) Galaxies: Star Clusters: General Galaxies: Stellar Content
DOI10.1088/0004-6256/141/3/86
Indexed BySCI
Language英语
WOS IDWOS:000287231000017
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/7873
Collection光学天文研究部
Affiliation1.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China
2.Chinese Acad Sci, Natl Astron Observ, Key Lab Opt Astron, Beijing 100012, Peoples R China
3.Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China
Recommended Citation
GB/T 7714
Ma, Jun,Wang, Song,Wu, Zhenyu,et al. AGE AND MASS CONSTRAINTS FOR A YOUNG MASSIVE CLUSTER IN M31 BASED ON SPECTRAL ENERGY DISTRIBUTION FITTING[J]. ASTRONOMICAL JOURNAL,2011,141(3).
APA Ma, Jun.,Wang, Song.,Wu, Zhenyu.,Fan, Zhou.,Yang, Yanbin.,...&Chen, Jiansheng.(2011).AGE AND MASS CONSTRAINTS FOR A YOUNG MASSIVE CLUSTER IN M31 BASED ON SPECTRAL ENERGY DISTRIBUTION FITTING.ASTRONOMICAL JOURNAL,141(3).
MLA Ma, Jun,et al."AGE AND MASS CONSTRAINTS FOR A YOUNG MASSIVE CLUSTER IN M31 BASED ON SPECTRAL ENERGY DISTRIBUTION FITTING".ASTRONOMICAL JOURNAL 141.3(2011).
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