Relations between stellar mass and electron temperature-based metallicity for star-forming galaxies in a wide mass range
文献类型:期刊论文
作者 | Shi, Wei-Bin1,2; Liang, Yan-Chun2; Shao, Xu2,3; Liu, Xiao-Wei4; Zhao, Gang2; Hammer, Francois5; Zhang, Yong6; Flores, Hector5; Ruan, Gui-Ping1,2; Zhou, Li1,2,3 |
刊名 | RESEARCH IN ASTRONOMY AND ASTROPHYSICS |
出版日期 | 2014-07-01 |
卷号 | 14期号:7页码:875-890 |
关键词 | galaxies: abundances galaxies: evolution galaxies: ISM galaxies: spiral galaxies: starburst galaxies: stellar content |
英文摘要 | We select 947 star-forming galaxies from SDSS-DR7 with [O III]lambda 4363 emission lines detected at a signal-to-noise ratio larger than 5 sigma. Their electron temperatures and direct oxygen abundances are then determined. We compare the results from different methods. t(2), the electron temperature in the low ionization region, estimated from t(3), that in the high ionization region, is compared using three analysis relations between t(2) - t(3). These show obvious differences, which result in some different ionic oxygen abundances. The results of t(3), t(2), O++/H+ and O+/H+ derived by using methods from IRAF and literature are also compared. The ionic abundances O++/H+ are higher than O+/H+ for most cases. The different oxygen abundances derived from T-e and the strong-line ratios show a clear discrepancy, which is more obvious following increasing stellar mass and strong-line ratio R-23. The sample of galaxies from SDSS with detected [O III]lambda 4363 have lower metallicites and higher star formation rates, so they may not be typical representatives of the whole population of galaxies. Adopting data objects from Andrews & Martini, Liang et al. and Lee et al. data, we derive new relations of stellar mass and metallicity for star-forming galaxies in a much wider stellar mass range: from 10(6) M-circle dot to 10(11) M-circle dot. |
收录类别 | SCI |
语种 | 英语 |
WOS记录号 | WOS:000339102700010 |
源URL | [http://ir.bao.ac.cn/handle/114a11/6592] |
专题 | 国家天文台_光学天文研究部 |
作者单位 | 1.Shandong Univ, Sch Space Sci & Phys, Shandong Prov Key Lab Opt Astron & Solar Terr Env, Weihai 264209, Peoples R China 2.Chinese Acad Sci, Natl Astron Observ, Key Lab Opt Astron, Beijing 100012, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Peking Univ, Kavli Inst Astron & Astrophys, Beijing 100871, Peoples R China 5.Observ Paris, GEPI, F-92195 Meudon, France 6.Univ Hong Kong, Dept Phys, Hong Kong, Hong Kong, Peoples R China |
推荐引用方式 GB/T 7714 | Shi, Wei-Bin,Liang, Yan-Chun,Shao, Xu,et al. Relations between stellar mass and electron temperature-based metallicity for star-forming galaxies in a wide mass range[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2014,14(7):875-890. |
APA | Shi, Wei-Bin.,Liang, Yan-Chun.,Shao, Xu.,Liu, Xiao-Wei.,Zhao, Gang.,...&Liang Yanchun.(2014).Relations between stellar mass and electron temperature-based metallicity for star-forming galaxies in a wide mass range.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,14(7),875-890. |
MLA | Shi, Wei-Bin,et al."Relations between stellar mass and electron temperature-based metallicity for star-forming galaxies in a wide mass range".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 14.7(2014):875-890. |
入库方式: OAI收割
来源:国家天文台
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