Hidden Broad-line Regions in Seyfert 2 Galaxies: From the Spectropolarimetric Perspective
文献类型：期刊论文
| 作者 | Du P(杜璞) ; Wang JM(王建民); Zhang ZX(张志翔); Du, P; Wang, JM; Zhang, ZX
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| 刊名 | ASTROPHYSICAL JOURNAL LETTERS
 |
| 出版日期 | 2017 |
| 卷号 | 840期号:1页码:L6 |
| ISSN号 | 2041-8205 |
| 关键词 | galaxies: active galaxies: nuclei galaxies: Seyfert quasars: emission lines |
| DOI | 10.3847/2041-8213/aa6d7b |
| 文献子类 | Article |
| 英文摘要 | The hidden broad-line regions (BLRs) in Seyfert 2 galaxies, which display broad emission lines (BELs) in their polarized spectra, are a key piece of evidence in support of the unified model for active galactic nuclei (AGNs). However, the detailed kinematics and geometry of hidden BLRs are still not fully understood. The virial factor obtained from reverberation mapping of type 1 AGNs may be a useful diagnostic of the nature of hidden BLRs in type 2 objects. In order to understand the hidden BLRs, we compile six type 2 objects from the literature with polarized BELs and dynamical measurements of black hole masses. All of them contain pseudobulges. We estimate their virial factors, and find the average value is 0.60 and the standard deviation is 0.69, which agree well with the value of type 1 AGNs with pseudobulges. This study demonstrates that (1) the geometry and kinematics of BLR are similar in type 1 and type 2 AGNs of the same bulge type (pseudobulges), and (2) the small values of virial factors in Seyfert 2 galaxies suggest that, similar to type 1 AGNs, BLRs tend to be very thick disks in type 2 objects. |
| 电子版国际标准刊号 | 2041-8213 |
| WOS关键词 | ACTIVE GALACTIC NUCLEI ; SUPERMASSIVE BLACK-HOLES ; AGN MONITORING PROJECT ; ACCRETION DISK ; HOST GALAXIES ; MASS SCALE ; NGC-1068 ; LUMINOSITY ; EMISSION ; SIGMA |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000400176900002 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/284709]  |
| 专题 | 高能物理研究所_粒子天体物理中心 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Du P,Wang JM,Zhang ZX,et al. Hidden Broad-line Regions in Seyfert 2 Galaxies: From the Spectropolarimetric Perspective[J]. ASTROPHYSICAL JOURNAL LETTERS,2017,840(1):L6. |
| APA | 杜璞,王建民,张志翔,Du, P,Wang, JM,&Zhang, ZX.(2017).Hidden Broad-line Regions in Seyfert 2 Galaxies: From the Spectropolarimetric Perspective.ASTROPHYSICAL JOURNAL LETTERS,840(1),L6. |
| MLA | 杜璞,et al."Hidden Broad-line Regions in Seyfert 2 Galaxies: From the Spectropolarimetric Perspective".ASTROPHYSICAL JOURNAL LETTERS 840.1(2017):L6. |
入库方式： OAI收割
来源：高能物理研究所
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