| EDDINGTON RATIO GOVERNS THE EQUIVALENT WIDTH OF Mg II EMISSION LINE IN ACTIVE GALACTIC NUCLEI | |
Dong, XB1,2; Wang, TG1,2; Wang JG(王建国)1,3,4 ; Fan, XH5,6; Wang, HY1,2; Zhou, HY1,2,7; Yuan WM(袁为民)3; Dong, XB (reprint author), Univ Sci & Technol China, Chinese Acad Sci, Key Lab Res Galaxies & Cosmol, Hefei 230026, Anhui, Peoples R China.
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| 发表期刊 | ASTROPHYSICAL JOURNAL LETTERS
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| 2009-09-20 | |
| 卷号 | 703期号:1页码:L1-L5 |
| DOI | 10.1088/0004-637X/703/1/L1 |
| 产权排序 | 第3完成单位 |
| 收录类别 | SCI |
| 关键词 | Galaxies: Active Line: Formation Quasars: Emission Lines Quasars: General Radiation Mechanisms: General |
| 摘要 | We have investigated the ensemble regularities of the equivalent widths (EWs) of Mg II lambda 2800 emission line of active galactic nuclei (AGNs), using a uniformly selected sample of 2092 Seyfert 1 galaxies and quasars at 0.45 <= z <= 0.8 in the spectroscopic data set of the Sloan Digital Sky Survey Fourth Data Release. We find a strong correlation between the EW of Mg II and the AGN Eddington ratio (L/L(Edd)): EW(Mg II) proportional to (L/L(Edd))(-0.4). Furthermore, for AGNs with the same L/L(Edd), their EWs of Mg II show no correlation with luminosity, black hole mass, or line width, and the Mg II line luminosity is proportional to continuum luminosity, as expected by photoionization theory. Our result shows that Mg II EW is not dependent on luminosity, but is solely governed by L/L(Edd). |
| 项目资助者 | NSF [NSF-10533050, NSF-10703006, NSF-10728307] ; CAS Knowledge Innovation Program [KJCX2-YW-T05] ; National 973 Project of China [2007CB815403] ; Alfred P. Sloan Foundation ; Participating Institutions ; National Science Foundation ; U.S. Department of Energy ; National Aeronautics and Space Administration ; Japanese Monbukagakusho ; Max Planck Society ; Higher Education Funding Council for England |
| 语种 | 英语 |
| 学科领域 | Astronomy & Astrophysics |
| 文章类型 | Article |
| ISSN | 2041-8205 |
| URL | 查看原文 |
| WOS记录号 | WOS:000269626600001 |
| WOS研究方向 | Astronomy & Astrophysics |
| WOS类目 | Astronomy & Astrophysics |
| 关键词[WOS] | BLACK-HOLE MASS ; DIGITAL SKY SURVEY ; RADIUS-LUMINOSITY RELATIONSHIP ; HOST-GALAXY STARLIGHT ; RADIATION PRESSURE ; SEYFERT-1 GALAXIES ; QUASAR ; SPECTRA ; REVERBERATION ; CONTINUUM |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.ynao.ac.cn/handle/114a53/4976 |
| 专题 | 高能天体物理研究组 |
| 通讯作者 | Dong, XB (reprint author), Univ Sci & Technol China, Chinese Acad Sci, Key Lab Res Galaxies & Cosmol, Hefei 230026, Anhui, Peoples R China. |
| 作者单位 | 1.Key Laboratory for Research in Galaxies and Cosmology, The University of Sciences and Technology of China, Chinese Academy of Sciences, Hefei, Anhui 230026, China 2.Center for Astrophysics, University of Science and Technology of China, Hefei, Anhui 230026, China 3.National Astronomical Observatories/Yunnan Observatory, Chinese Academy of Sciences, P.O. Box 110, Kunming, Yunnan 650011, China 4.Graduate School of the Chinese Academy of Sciences, 19A Yuquan Road, P.O. Box 3908, Beijing 100039, China 5.Steward Observatory, The University of Arizona, Tucson, AZ 85721, USA 6.Max Planck Institute for Astronomy, D-69120, Heidelberg, Germany 7.Max-Planck-Institut f?r extraterrestrische Physik, Giessenbachstrasse 1, 85748 Garching, Germany |
| 推荐引用方式 GB/T 7714 | Dong, XB,Wang, TG,Wang JG,et al. EDDINGTON RATIO GOVERNS THE EQUIVALENT WIDTH OF Mg II EMISSION LINE IN ACTIVE GALACTIC NUCLEI[J]. ASTROPHYSICAL JOURNAL LETTERS,2009,703(1):L1-L5. |
| APA | Dong, XB.,Wang, TG.,Wang JG.,Fan, XH.,Wang, HY.,...&Dong, XB .(2009).EDDINGTON RATIO GOVERNS THE EQUIVALENT WIDTH OF Mg II EMISSION LINE IN ACTIVE GALACTIC NUCLEI.ASTROPHYSICAL JOURNAL LETTERS,703(1),L1-L5. |
| MLA | Dong, XB,et al."EDDINGTON RATIO GOVERNS THE EQUIVALENT WIDTH OF Mg II EMISSION LINE IN ACTIVE GALACTIC NUCLEI".ASTROPHYSICAL JOURNAL LETTERS 703.1(2009):L1-L5. |
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| EDDINGTON RATIO GOVE（807KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | 浏览 请求全文 | |
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