A search for spectral galaxy pairs of overlapping galaxies based on fuzzy recognition
文献类型：期刊论文
| 作者 | Yang, Haifeng1,2,3 ; Luo, Ali1; Chen, Xiaoyan1; Zhang, Jifu2; Hou, Wen3; Cai, Jianghui2; Wei, Peng3; Ren, Juanjuan3; Liu, Xiaojie3; Zhao, Yongheng1
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| 刊名 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
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| 出版日期 | 2014-11-01 |
| 卷号 | 444期号:3页码:2456-2469 |
| 关键词 | methods: data analysis dust, extinction galaxies: evolution galaxies: ISM |
| 英文摘要 | Spectral galaxy pairs (hereafter as SGPs) are composite galaxy spectra that contain two independent redshift systems. These spectra are useful for studying the dust properties of the foreground galaxies. In this article, a total of 165 spectra of SGPs are mined from the Sloan Digital Sky Survey (SDSS) Data Release 9 (DR9) using the concept of 'membership degree' from fuzzy set theory, especially defined to be suitable for fuzzy identification of emission lines. The spectra and images of this sample are classified according to their membership degree and image features, respectively. Many of the second redshift systems are too small or too dim to select from SDSS images alone, making the sample a potentially unique source of information on dust effects in low-luminosity or low surface brightness galaxies, which are underrepresented in morphological pair samples. The dust extinction of those objects with high membership degree is also estimated by Balmer decrement. Additionally, analyses for a series of spectroscopic observations of one SGP from 165 systems indicate that a newly star-forming region of our Milky Way might exist. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000343399600038 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/6428]  |
| 专题 | 国家天文台_光学天文研究部 |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Opt Astron, Natl Astron Observ, Beijing 100012, Peoples R China 2.Taiyuan Univ Sci & Technol, Sch Comp Sci & Technol, Taiyuan 030024, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Haifeng,Luo, Ali,Chen, Xiaoyan,et al. A search for spectral galaxy pairs of overlapping galaxies based on fuzzy recognition[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2014,444(3):2456-2469. |
| APA | Yang, Haifeng.,Luo, Ali.,Chen, Xiaoyan.,Zhang, Jifu.,Hou, Wen.,...&Zhao, Yongheng.(2014).A search for spectral galaxy pairs of overlapping galaxies based on fuzzy recognition.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,444(3),2456-2469. |
| MLA | Yang, Haifeng,et al."A search for spectral galaxy pairs of overlapping galaxies based on fuzzy recognition".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 444.3(2014):2456-2469. |
入库方式： OAI收割
来源：国家天文台
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