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The effects of the WISE/GALEX photometry for the SED-fitting with M31 star clusters and candidates
Fan, Zhou; Wang, Song
2017-10-01
发表期刊ASTROPHYSICS AND SPACE SCIENCE
卷号362期号:10
摘要Spectral energy distribution (SED) fitting of stellar population synthesis models is an important and popular way to constrain the physical parameters-e.g., the ages, metallicities, masses for stellar population analysis. The previous works suggest that both blue-bands and red-bands photometry works for the SED-fitting. Either blue-domained or red-domained SED-fitting usually lead to the unreliable or biased results. Meanwhile, it seems that extending the wavelength coverage could be helpful. Since the Galaxy Evolution Explorer (GALEX) and Wide-field Infrared Survey Explorer (WISE) provide the FUV/NUV and mid-infrared W1/W2 band data, we extend the SED-fitting to a wider wavelength coverage. In our work, we analyzed the effect of adding the FUV/NUV and W1/W2 band to the optical and near-infrared UBVRIJHK bands for the fitting with the (Bruzual and Charlot in Mon. Not. R. Astron. Soc. 344, 1000, 2003) (BC03) models and GALEV models. It is found that the FUV/NUV bands data affect the fitting results of both ages and metallicities much more significantly than that of the WISE W1/W2 band with the BC03 models. While for the GALEV models, the effect of the WISE W1/W2 band for the metallicity fitting seems comparable to that of GALEX FUV/NUV bands, but for age the effect of the W1/W2 band seems less crucial than that of the FUV/NUV bands. Thus we conclude that the GALEX FUV/NUV bands are more crucial for the SED-fitting of ages and metallicities, than the other bands, and the high-quality UV data (with high photometry precision) are required.
文章类型Article
关键词Galaxies: Individual (M31) Galaxies: Star Clusters Globular Clusters: General Star Clusters: General
WOS标题词Science & Technology ; Physical Sciences
资助者National Program on Key Research and Development Project(2016YFA0400804) ; National Program on Key Research and Development Project(2016YFA0400804) ; National Key Basic Research Program of China (973 Program)(2015CB857002) ; National Key Basic Research Program of China (973 Program)(2015CB857002) ; National Natural Science Foundation of China (NFSC)(11373003 ; National Natural Science Foundation of China (NFSC)(11373003 ; 11603035 ; 11603035 ; U1631102) ; U1631102) ; National Program on Key Research and Development Project(2016YFA0400804) ; National Program on Key Research and Development Project(2016YFA0400804) ; National Key Basic Research Program of China (973 Program)(2015CB857002) ; National Key Basic Research Program of China (973 Program)(2015CB857002) ; National Natural Science Foundation of China (NFSC)(11373003 ; National Natural Science Foundation of China (NFSC)(11373003 ; 11603035 ; 11603035 ; U1631102) ; U1631102)
DOI10.1007/s10509-017-3176-y
关键词[WOS]SPECTRAL ENERGY-DISTRIBUTIONS ; EVOLUTIONARY SYNTHESIS MODELS ; STELLAR POPULATION SYNTHESIS ; INITIAL MASS FUNCTION ; S(4)G IRAC 3.6 ; GLOBULAR-CLUSTERS ; SYSTEMATIC UNCERTAINTIES ; GALAXIES ; CATALOG ; METALLICITY
收录类别SCI
语种英语
资助者National Program on Key Research and Development Project(2016YFA0400804) ; National Program on Key Research and Development Project(2016YFA0400804) ; National Key Basic Research Program of China (973 Program)(2015CB857002) ; National Key Basic Research Program of China (973 Program)(2015CB857002) ; National Natural Science Foundation of China (NFSC)(11373003 ; National Natural Science Foundation of China (NFSC)(11373003 ; 11603035 ; 11603035 ; U1631102) ; U1631102) ; National Program on Key Research and Development Project(2016YFA0400804) ; National Program on Key Research and Development Project(2016YFA0400804) ; National Key Basic Research Program of China (973 Program)(2015CB857002) ; National Key Basic Research Program of China (973 Program)(2015CB857002) ; National Natural Science Foundation of China (NFSC)(11373003 ; National Natural Science Foundation of China (NFSC)(11373003 ; 11603035 ; 11603035 ; U1631102) ; U1631102)
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
WOS记录号WOS:000411111800012
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文献类型期刊论文
条目标识符http://ir.bao.ac.cn/handle/114a11/20122
专题光学天文研究部
作者单位Chinese Acad Sci, Key Lab Opt Astron, Natl Astron Observ, 20A Datun Rd, Beijing 100012, Peoples R China
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Fan, Zhou,Wang, Song. The effects of the WISE/GALEX photometry for the SED-fitting with M31 star clusters and candidates[J]. ASTROPHYSICS AND SPACE SCIENCE,2017,362(10).
APA Fan, Zhou,&Wang, Song.(2017).The effects of the WISE/GALEX photometry for the SED-fitting with M31 star clusters and candidates.ASTROPHYSICS AND SPACE SCIENCE,362(10).
MLA Fan, Zhou,et al."The effects of the WISE/GALEX photometry for the SED-fitting with M31 star clusters and candidates".ASTROPHYSICS AND SPACE SCIENCE 362.10(2017).
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