The Impact of Star Formation Histories on Stellar Mass Estimation: Implications from the Local Group Dwarf Galaxies
文献类型：期刊论文
| 作者 | Zhang, Hong-Xin1,2,3; Puzia, Thomas H.1; Weisz, Daniel R.4 |
| 刊名 | ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES
 |
| 出版日期 | 2017-11-01 |
| 卷号 | 233期号:1页码:36 |
| ISSN号 | 0067-0049 |
| 关键词 | galaxies: fundamental parameters galaxies: general galaxies: photometry galaxies: stellar content Local Group |
| DOI | 10.3847/1538-4365/aa937b |
| 英文摘要 | Building on the relatively accurate star formation histories (SFHs) and metallicity evolution of 40 Local Group (LG) dwarf galaxies derived from resolved color-magnitude diagram modeling, we carried out a comprehensive study of the influence of SFHs, metallicity evolution, and dust extinction on the UV-to-near-IR color-mass-to-light ratio (color-log (sic)(star)(lambda)) distributions and M-star estimation of local universe galaxies. We find that (1) the LG galaxies follow color-log (sic)(star) (lambda) relations that fall in between the ones calibrated by previous studies; (2) optical color-log (sic)(star)(lambda) relations at higher [M/H] are generally broader and steeper; (3) the SFH "concentration" does not significantly affect the color-log (sic)star(lambda) relations; (4) light-weighted ages < age >(lambda) and metallicities <[M H]>(lambda) together constrain log (sic)(star)(lambda) with uncertainties ranging from less than or similar to 0.1 dex for the near-IR up to 0.2 dex for the optical passbands; (5) metallicity evolution induces significant uncertainties to the optical but not near-IR(sic)(star)(lambda) at a given < age >(lambda) and <[M H]>(lambda); (6) the V band is the ideal luminance passband for estimating (sic)(star)(lambda) from single colors, because the combinations of (sic)(star)(V) and optical colors such as B - V and g - r exhibit the weakest systematic dependences on SFHs, metallicities, and dust extinction; and (7) without any prior assumption on SFHs, M-star is constrained with biases. less than or similar to 0.3 dex by the optical-to-near-IR SED fitting. Optical passbands alone constrain M-star with biases. less than or similar to 0.4 dex (or less than or similar to 0.6 dex) when dust extinction is fixed (or variable) in SED fitting. SED fitting with monometallic SFH models tends to underestimate M-star of real galaxies. M-star tends to be overestimated (or underestimated) at the youngest (or oldest) < age >(mass). |
| WOS关键词 | SPECTRAL ENERGY-DISTRIBUTIONS ; DIGITAL SKY SURVEY ; BROAD-BAND PHOTOMETRY ; LYMAN BREAK GALAXIES ; RESOLUTION GALACTIC SPECTRA ; HUBBLE-SPACE-TELESCOPE ; MAXIMUM A-POSTERIORI ; GIANT BRANCH STARS ; TO-LIGHT RATIOS ; TP-AGB MODELS |
| 资助项目 | FONDECYT[3160538] ; FONDECYT[1161817] ; BASAL Center for Astrophysics and Associated Technologies[PFB-06] ; Alfred P. Sloan Foundation ; Chinese Academy of Sciences through a CAS-CONICYT Postdoctoral Fellowship ; National Natural Science Foundation of China (NSFC)[11390373] |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| 出版者 | IOP PUBLISHING LTD |
| WOS记录号 | WOS:000416011600004 |
| 资助机构 | FONDECYT ; BASAL Center for Astrophysics and Associated Technologies ; Alfred P. Sloan Foundation ; Chinese Academy of Sciences through a CAS-CONICYT Postdoctoral Fellowship ; National Natural Science Foundation of China (NSFC) ; FONDECYT ; BASAL Center for Astrophysics and Associated Technologies ; Alfred P. Sloan Foundation ; Chinese Academy of Sciences through a CAS-CONICYT Postdoctoral Fellowship ; National Natural Science Foundation of China (NSFC) ; FONDECYT ; BASAL Center for Astrophysics and Associated Technologies ; Alfred P. Sloan Foundation ; Chinese Academy of Sciences through a CAS-CONICYT Postdoctoral Fellowship ; National Natural Science Foundation of China (NSFC) ; FONDECYT ; BASAL Center for Astrophysics and Associated Technologies ; Alfred P. Sloan Foundation ; Chinese Academy of Sciences through a CAS-CONICYT Postdoctoral Fellowship ; National Natural Science Foundation of China (NSFC) |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/35817]  |
| 专题 | 中国科学院国家天文台 |
| 通讯作者 | Zhang, Hong-Xin |
| 作者单位 | 1.Pontificia Univ Catolica Chile, Inst Astrophys, Av Vicuna Mackenna 4860, Macul 7820436, Santiago, Chile 2.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China 3.China Chile Joint Ctr Astron, Camino El Observ 1515, Las Condes, Santiago, Chile 4.Univ Calif Berkeley, Dept Astron, 601 Campbell Hall, Berkeley, CA 94720 USA |
| 推荐引用方式 GB/T 7714 | Zhang, Hong-Xin,Puzia, Thomas H.,Weisz, Daniel R.. The Impact of Star Formation Histories on Stellar Mass Estimation: Implications from the Local Group Dwarf Galaxies[J]. ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES,2017,233(1):36. |
| APA | Zhang, Hong-Xin,Puzia, Thomas H.,&Weisz, Daniel R..(2017).The Impact of Star Formation Histories on Stellar Mass Estimation: Implications from the Local Group Dwarf Galaxies.ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES,233(1),36. |
| MLA | Zhang, Hong-Xin,et al."The Impact of Star Formation Histories on Stellar Mass Estimation: Implications from the Local Group Dwarf Galaxies".ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES 233.1(2017):36. |
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来源：国家天文台
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