Supermassive Black Holes with High Accretion Rates in Active Galactic Nuclei. VIII. Structure of the Broad-line Region and Mass of the Central Black Hole in Mrk 142
文献类型：期刊论文
| 作者 | Qiu J(邱捷) ; 宋盛雨央; Li YR(李彦荣); Wang JM(王建民); Li, YR; Songsheng, YY; Qiu, J; Hu, C; Du, P; Lu, KX
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| 刊名 | ASTROPHYSICAL JOURNAL
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| 出版日期 | 2018 |
| 卷号 | 869期号:2页码:137 |
| 关键词 | black hole physics galaxies: active galaxies: individual (Mrk 142) quasars: general |
| ISSN号 | 0004-637X |
| DOI | 10.3847/1538-4357/aaee6b |
| 文献子类 | Article |
| 英文摘要 | This is the eighth in a series of papers reporting on a large reverberation mapping (RM) campaign to measure black hole (BH) mass in active galactic nuclei with high accretion rates. We employ the recently developed dynamical modeling approach for broad-line regions (BLRs) based on the method of Pancoast et al. to analyze the RM data set of Mrk 142 observed in the first monitoring season. In this approach, continuum variations are reconstructed using a damped random walk process, and BLR structure is delineated using a flexible disk-like geometry, in which BLR clouds move around the central BH with Keplerian orbits or inflow / outflow motion. The approach also includes the possibilities of anisotropic emission from BLR clouds, nonlinear response of the line emission to the continuum, and different long-term trends in the continuum and emission-line variations. We implement the approach in a Bayesian framework that is apt for parallel computation and use a Markov chain Monte Carlo technique to recover the parameters and uncertainties for the modeling, including the mass of the central BH. We apply three BLR models with different prescriptions of BLR cloud distributions and find that the best model for fitting the data of Mrk 142 is a two-zone BLR model, consistent with the theoretical BLR model surrounding slim accretion disks. The best model yields a BH mass of log (M-center dot/M-circle dot) = 6.23(-0.45)(+0.26), resulting in a virial factor of log f = -0.36(-0.54)(+0.33) for the full width at half maximum of the H beta line measured from the mean spectrum. The virial factors for the other measures of the H beta line width are also presented. |
| 电子版国际标准刊号 | 1538-4357 |
| WOS关键词 | IONIZING CONTINUUM VARIATIONS ; REVERBERATION MAPPING DATA ; VELOCITY-DELAY MAPS ; EMISSION-LINE ; RADIATION PRESSURE ; EDDINGTON RATIO ; VARIABILITY ; GALAXIES ; QUASARS ; SIZE |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000454073700008 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/286988]  |
| 专题 | 高能物理研究所_粒子天体物理中心 |
| 通讯作者 | Li YR(李彦荣) |
| 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 | Qiu J,宋盛雨央,Li YR,et al. Supermassive Black Holes with High Accretion Rates in Active Galactic Nuclei. VIII. Structure of the Broad-line Region and Mass of the Central Black Hole in Mrk 142[J]. ASTROPHYSICAL JOURNAL,2018,869(2):137. |
| APA | 邱捷.,宋盛雨央.,李彦荣.,王建民.,Li, YR.,...&胡晨.(2018).Supermassive Black Holes with High Accretion Rates in Active Galactic Nuclei. VIII. Structure of the Broad-line Region and Mass of the Central Black Hole in Mrk 142.ASTROPHYSICAL JOURNAL,869(2),137. |
| MLA | 邱捷,et al."Supermassive Black Holes with High Accretion Rates in Active Galactic Nuclei. VIII. Structure of the Broad-line Region and Mass of the Central Black Hole in Mrk 142".ASTROPHYSICAL JOURNAL 869.2(2018):137. |
入库方式： OAI收割
来源：高能物理研究所
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