A Method to Estimate Metal Abundance from Stellar Spectra Using Ca Line Index
文献类型：期刊论文
| 作者 | Pan Jing-chang1; Luo A-li1,2 ; Li Xiang-ru3; Wei Peng2
|
| 刊名 | SPECTROSCOPY AND SPECTRAL ANALYSIS
 |
| 出版日期 | 2015-09-01 |
| 卷号 | 35期号:9页码:2650-2653 |
| 关键词 | Stellar spectra Stellar metallicity LAMOST survey Ca line index |
| 英文摘要 | This paper presents a method to estimate stellar metallicity based on BP neural network and Ca line index. This method trains a BP ANN model from SDSS/SEGUE stellar spectra and parameters provided by SSPP. The values of Teff and the line index of Ca lines are the input of network while the [Fe/H] values are the oputput of the network. A set of samples are resampled from the set of all and then a network model Is trained. The network can be used to predict the stellar metallicity from low-resolution spsectra. The experiment shows that the proposed method can accurately and effectively measure the [Fe/H] from the stellar spectra. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000361268300051 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/5569]  |
| 专题 | 国家天文台_光学天文研究部 |
| 作者单位 | 1.Shandong Univ, Sch Mech Elect & Informat Engn, Weihai 264209, Peoples R China 2.Chinese Acad Sci, Natl Astron Observ, Key Lab Opt Astron, Beijing 100012, Peoples R China 3.S China Normal Univ, Guangzhou 510631, Guangdong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Pan Jing-chang,Luo A-li,Li Xiang-ru,et al. A Method to Estimate Metal Abundance from Stellar Spectra Using Ca Line Index[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS,2015,35(9):2650-2653. |
| APA | Pan Jing-chang,Luo A-li,Li Xiang-ru,&Wei Peng.(2015).A Method to Estimate Metal Abundance from Stellar Spectra Using Ca Line Index.SPECTROSCOPY AND SPECTRAL ANALYSIS,35(9),2650-2653. |
| MLA | Pan Jing-chang,et al."A Method to Estimate Metal Abundance from Stellar Spectra Using Ca Line Index".SPECTROSCOPY AND SPECTRAL ANALYSIS 35.9(2015):2650-2653. |
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来源：国家天文台
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