| ESTIMATING BLACK HOLE MASSES IN ACTIVE GALACTIC NUCLEI USING THE Mg II lambda 2800 EMISSION LINE | |
Wang JG(王建国)1,2,3,4 ; Dong, XB2,5; Wang, TG2,5; Ho, LC6; Yuan WM(袁为民)1; Wang, HY2,5; Zhang, K2,5; Zhang, SH2,5; Zhou, HY2,5; Wang, JG (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, POB 110, Kunming 650011, Yunnan, Peoples R China.
| |
| 发表期刊 | ASTROPHYSICAL JOURNAL
 |
| 2009-12-20 | |
| 卷号 | 707期号:2页码:1334-1346 |
| DOI | 10.1088/0004-637X/707/2/1334 |
| 产权排序 | 第1完成单位 |
| 收录类别 | SCI |
| 关键词 | Black Hole Physics Galaxies: Active Quasars: Emission Lines Quasars: General |
| 摘要 | We investigate the relationship between the linewidths of broad Mg II lambda 2800 and H beta in active galactic nuclei (AGNs) to refine them as tools to estimate black hole (BH) masses. We perform a detailed spectral analysis of a large sample of AGNs at intermediate redshifts selected from the Sloan Digital Sky Survey, along with a smaller sample of archival ultraviolet spectra for nearby sources monitored with reverberation mapping (RM). Careful attention is devoted to accurate spectral decomposition, especially in the treatment of narrow-line blending and Fe II contamination. We show that, contrary to popular belief, the velocity width of Mg II tends to be smaller than that of H beta, suggesting that the two species are not cospatial in the broad-line region. Using these findings and recently updated BH mass measurements from RM, we present a new calibration of the empirical prescriptions for estimating virial BH masses for AGNs using the broad Mg II and H beta lines. We show that the BH masses derived from our new formalisms show subtle but important differences compared to some of the mass estimators currently used in the literature. |
| 项目资助者 | Chinese NSF [NSF-10533050, NSF-10703006] ; National Basic Research Program of China (973 Program) [2009CB824800] ; CAS Knowledge Innovation Program [KJCX2-YW-T05] ; Carnegie Institution for Science. Funding ; Alfred P. Sloan Foundation ; 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 | 0004-637X |
| URL | 查看原文 |
| 归档日期 | 2010-01-25 |
| WOS记录号 | WOS:000272465400040 |
| WOS研究方向 | Astronomy & Astrophysics |
| WOS类目 | Astronomy & Astrophysics |
| 关键词[WOS] | DIGITAL SKY SURVEY ; RADIUS-LUMINOSITY RELATIONSHIP ; HOST-GALAXY STARLIGHT ; HIGH-REDSHIFT QUASARS ; VELOCITY DISPERSION ; EDDINGTON RATIO ; SEYFERT-1 GALAXIES ; RADIATION PRESSURE ; INTRINSIC SCATTER ; ASTRONOMICAL DATA |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.ynao.ac.cn/handle/114a53/4970 |
| 专题 | 高能天体物理研究组 |
| 通讯作者 | Wang, JG (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, POB 110, Kunming 650011, Yunnan, Peoples R China. |
| 作者单位 | 1.National Astronomical Observatories/Yunnan Observatory, Chinese Academy of Sciences, P.O. Box 110, Kunming, Yunnan 650011, China 2.Key Laboratory for Research in Galaxies and Cosmology, The University of Sciences and Technology of China, Chinese Academy of Sciences, Hefei, Anhui 230026, China 3.Department of Physics, Yunnan University, Kunming, Yunnan 650031, China 4.Graduate School of the Chinese Academy of Sciences, 19A Yuquan Road, P.O. Box 3908, Beijing 100039, China 5.Center for Astrophysics, University of Science and Technology of China, Hefei, Anhui 230026, China 6.The Observatories of the Carnegie Institution for Science, 813 Santa Barbara Street, Pasadena, CA 91101, USA |
| 第一作者单位 | 中国科学院云南天文台 |
| 推荐引用方式 GB/T 7714 | Wang JG,Dong, XB,Wang, TG,et al. ESTIMATING BLACK HOLE MASSES IN ACTIVE GALACTIC NUCLEI USING THE Mg II lambda 2800 EMISSION LINE[J]. ASTROPHYSICAL JOURNAL,2009,707(2):1334-1346. |
| APA | Wang JG.,Dong, XB.,Wang, TG.,Ho, LC.,Yuan WM.,...&Wang, JG .(2009).ESTIMATING BLACK HOLE MASSES IN ACTIVE GALACTIC NUCLEI USING THE Mg II lambda 2800 EMISSION LINE.ASTROPHYSICAL JOURNAL,707(2),1334-1346. |
| MLA | Wang JG,et al."ESTIMATING BLACK HOLE MASSES IN ACTIVE GALACTIC NUCLEI USING THE Mg II lambda 2800 EMISSION LINE".ASTROPHYSICAL JOURNAL 707.2(2009):1334-1346. |
| 条目包含的文件 | ||||||
| 文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
| ESTIMATING BLACK HOL（978KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | 浏览 请求全文 | |
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。
修改评论