CORRELATION ANALYSIS OF A LARGE SAMPLE OF NARROW-LINE SEYFERT 1 GALAXIES: LINKING CENTRAL ENGINE AND HOST PROPERTIES
文献类型：期刊论文
| 作者 | Xu, Dawei1 ; Komossa, S.1,2,3; Zhou, Hongyan3,4,5; Lu, Honglin6; Li, Cheng7; Grupe, Dirk8; Wang, Jing1; Yuan, Weimin1
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| 刊名 | ASTRONOMICAL JOURNAL
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| 出版日期 | 2012-04-01 |
| 卷号 | 143期号:4 |
| 关键词 | galaxies: active galaxies: ISM galaxies: Seyfert quasars: emission lines |
| 英文摘要 | We present a statistical study of a large, homogeneously analyzed sample of narrow-line Seyfert 1 (NLS1) galaxies, accompanied by a comparison sample of broad-line Seyfert 1 (BLS1) galaxies. Optical emission-line and continuum properties are subjected to correlation analyses, in order to identify the main drivers of the correlation space of active galactic nuclei (AGNs), and of NLS1 galaxies in particular. For the first time, we have established the density of the narrow-line region as a key parameter in Eigenvector 1 space, as important as the Eddington ratio L/L-Edd. This is important because it links the properties of the central engine with the properties of the host galaxy, i.e., the interstellar medium (ISM). We also confirm previously found correlations involving the line width of H beta and the strength of the Fe II and [O III] lambda 5007 emission lines, and we confirm the important role played by L/L-Edd in driving the properties of NLS1 galaxies. A spatial correlation analysis shows that large-scale environments of the BLS1 and NLS1 galaxies of our sample are similar. If mergers are rare in our sample, accretion-driven winds, on the one hand, or bar-driven inflows, on the other hand, may account for the strong dependence of Eigenvector 1 on ISM density. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000301872800006 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/6097]  |
| 专题 | 国家天文台_空间科学研究部 |
| 作者单位 | 1.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China 2.Tech Univ Muenchen, Lehrstuhl Phys 1, D-85748 Garching, Germany 3.Univ Sci & Technol China, Chinese Acad Sci, Key Lab Res Galaxies & Cosmol, Hefei 230026, Peoples R China 4.Univ Sci & Technol China, Ctr Astrophys, Hefei 230026, Peoples R China 5.Polar Res Inst China, Shanghai 200136, Peoples R China 6.Univ Sci & Technol China, Phys Expt Teaching Ctr, Hefei 230026, Peoples R China 7.Chinese Acad Sci, Key Lab Res Galaxies & Cosmol, Shanghai Astron Observ, Partner Grp,MPI Astrophys, Shanghai 200030, Peoples R China 8.Penn State Univ, Dept Astron & Astrophys, University Pk, PA 16802 USA |
| 推荐引用方式 GB/T 7714 | Xu, Dawei,Komossa, S.,Zhou, Hongyan,et al. CORRELATION ANALYSIS OF A LARGE SAMPLE OF NARROW-LINE SEYFERT 1 GALAXIES: LINKING CENTRAL ENGINE AND HOST PROPERTIES[J]. ASTRONOMICAL JOURNAL,2012,143(4). |
| APA | Xu, Dawei.,Komossa, S..,Zhou, Hongyan.,Lu, Honglin.,Li, Cheng.,...&Yuan, Weimin.(2012).CORRELATION ANALYSIS OF A LARGE SAMPLE OF NARROW-LINE SEYFERT 1 GALAXIES: LINKING CENTRAL ENGINE AND HOST PROPERTIES.ASTRONOMICAL JOURNAL,143(4). |
| MLA | Xu, Dawei,et al."CORRELATION ANALYSIS OF A LARGE SAMPLE OF NARROW-LINE SEYFERT 1 GALAXIES: LINKING CENTRAL ENGINE AND HOST PROPERTIES".ASTRONOMICAL JOURNAL 143.4(2012). |
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来源：国家天文台
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