Broad-line Region of the Quasar PG 2130+099. II. Doubling the Size Over Four Years?
文献类型：期刊论文
| 作者 | Yao, Zhu-Heng13,14; Yang, Sen13,14; Guo, Wei-Jian11,12; Chen, Yong-Jie10,14; Songsheng, Yu-Yang14; Bao, Dong-Wei12; Jiang, Bo-Wei13,14; Wang, Yi-Lin13,14; Zhang, Hao13,14; Hu, Chen14 |
| 刊名 | ASTROPHYSICAL JOURNAL
 |
| 出版日期 | 2024-11-01 |
| 卷号 | 975期号:1 |
| ISSN号 | 0004-637X |
| DOI | 10.3847/1538-4357/ad72ef |
| 产权排序 | 第6完成单位 |
| 文献子类 | Article |
| 英文摘要 | Over the past three decades, multiple reverberation mapping (RM) campaigns conducted for the quasar PG 2130+099 have exhibited inconsistent findings with time delays ranging from similar to 10 to similar to 200 days. To achieve a comprehensive understanding of the geometry and dynamics of the broad-line region (BLR) in PG 2130+099, we continued an ongoing high-cadence RM monitoring campaign using the Calar Alto Observatory 2.2 m optical telescope for an extra four years from 2019 to 2022. We measured the time lags of several broad emission lines (including He ii, He i, H beta, and Fe ii) with respect to the 5100 & Aring; continuum, and their time lags continuously vary through the years. Especially, the H beta time lags exhibited approximately a factor of 2 increase in the last two years. Additionally, the velocity-resolved time delays of the broad H beta emission line reveal a back-and-forth change between signs of virial motion and inflow in the BLR. The combination of negligible (similar to 10%) continuum change and substantial time-lag variation (over 2 times) results in a significant scatter in the intrinsic R H beta -L 5100 relationship for PG 2130+099. Taking the consistent changes in the continuum variability time scale and the size of the BLR into account, we tentatively propose that the changes in the measurement of the BLR size may be affected by geometric dilution |
| 学科主题 | 天文学 ; 天体物理学 ; 高能天体物理学 ; 星系与宇宙学 |
| URL标识 | 查看原文 |
| 出版地 | TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND |
| WOS关键词 | SUPERMASSIVE BLACK-HOLES ; ACTIVE GALACTIC NUCLEI ; HIGH ACCRETION RATES ; DIGITAL SKY SURVEY ; AGN MONITORING PROJECT ; EMISSION-LINE ; SEYFERT-GALAXIES ; LUMINOSITY END ; HOST GALAXY ; TIME-DELAY |
| 资助项目 | National Key R&D Program of China[2022YFF0503401]; National Natural Science Foundation of China[11833008]; National Natural Science Foundation of China[11991050]; National Natural Science Foundation of China[12333003]; NSFC[11721303]; NSFC[11991052]; NSFC[12011540375]; NSFC[12233001]; Youth Innovation Promotion Association CAS; China Manned Space Project[CMS-CSST-2021-A04]; China Manned Space Project[CMS-CSST-2021-A06] |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:001339471200001 |
| 出版者 | IOP Publishing Ltd |
| 资助机构 | National Key R&D Program of China[2022YFF0503401] ; National Natural Science Foundation of China[11833008, 11991050, 12333003] ; NSFC[11721303, 11991052, 12011540375, 12233001] ; Youth Innovation Promotion Association CAS ; China Manned Space Project[CMS-CSST-2021-A04, CMS-CSST-2021-A06] |
| 版本 | 出版稿 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/27663]  |
| 专题 | 云南天文台_丽江天文观测站（南方基地） |
| 作者单位 | 1.National Astronomical Observatories of China, Chinese Academy of Sciences, 20A Datun Road, Beijing 100020, People's Republic of China 2.University of Chinese Academy of Sciences, 19A Yuquan Road, Beijing 100049, People's Republic of China; 3.Department of Physics, University of Johannesburg, P.O. Box 524, 2006 Auckland Park, South Africa; 4.Instituto de Astrofísica de Andalucía, Glorieta de la astronomía sn, 18008 Granada, Spain; 5.Centro Astronomico Hispano Alemán, Sierra de los filabres sn, 04550 gergal. Almería, Spain; 6.Department of Physics and Astronomy, University of Wyoming, Laramie, WY 82071, USA; 7.Physics Department, Nanjing Normal University, Nanjing 210097, People's Republic of China; 8.Department of Astronomy, School of Physics, Peking University, Beijing 100871, People's Republic of China; 9.Yunnan Observatories, The Chinese Academy of Sciences, Kunming 650011, People's Republic of China; 10.Dongguan Neutron Science Center, 1 Zhongziyuan Road, Dongguan 523808, People's Republic of China; |
| 推荐引用方式 GB/T 7714 | Yao, Zhu-Heng,Yang, Sen,Guo, Wei-Jian,et al. Broad-line Region of the Quasar PG 2130+099. II. Doubling the Size Over Four Years?[J]. ASTROPHYSICAL JOURNAL,2024,975(1). |
| APA | Yao, Zhu-Heng.,Yang, Sen.,Guo, Wei-Jian.,Chen, Yong-Jie.,Songsheng, Yu-Yang.,...&Wang, Jian-Min.(2024).Broad-line Region of the Quasar PG 2130+099. II. Doubling the Size Over Four Years?.ASTROPHYSICAL JOURNAL,975(1). |
| MLA | Yao, Zhu-Heng,et al."Broad-line Region of the Quasar PG 2130+099. II. Doubling the Size Over Four Years?".ASTROPHYSICAL JOURNAL 975.1(2024). |
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来源：云南天文台
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