Finding Quasars behind the Galactic Plane. II. Spectroscopic Identifications of 204 Quasars at divide b divide < 20 degrees | |
Fu, Yuming16,17; Wu, Xue-Bing16,17; Jiang, Linhua16,17; Zhang, Yanxia15; Huo, Zhi-Ying14; Ai, Y. L.12,13; Yang, Qian11; Ma, Qinchun16,17; Feng, Xiaotong16,17; Joshi, Ravi16 | |
刊名 | ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES |
2022-08-01 | |
卷号 | 261期号:2 |
ISSN号 | 0067-0049 |
DOI | 10.3847/1538-4365/ac7f3e |
产权排序 | 第14完成单位 |
文献子类 | Article |
英文摘要 | Quasars behind the Galactic plane (GPQs) are important astrometric references and valuable probes of Galactic gas, yet the search for GPQs is difficult due to severe extinction and source crowding in the Galactic plane. In this paper, we present a sample of 204 spectroscopically confirmed GPQs at divide b divide < 20 degrees, 191 of which are new discoveries. This GPQ sample covers a wide redshift range from 0.069 to 4.487. For the subset of 230 observed GPQ candidates, the lower limit of the purity of quasars is 85.2%, and the lower limit of the fraction of stellar contaminants is 6.1%. Using a multicomponent spectral fitting, we measure the emission line and continuum flux of the GPQs, and estimate their single-epoch virial black hole masses. Due to selection effects raised from Galactic extinction and target magnitude, these GPQs have higher black hole masses and continuum luminosities in comparison to the SDSS DR7 quasar sample. The spectral-fitting results and black hole mass estimates are compiled into a main spectral catalog, and an extended spectral catalog of GPQs. The successful identifications prove the reliability of both our GPQ selection methods and the GPQ candidate catalog, shedding light on the astrometric and astrophysical programs that make use of a large sample of GPQs in the future. |
学科主题 | 天文学 ; 星系与宇宙学 |
URL标识 | 查看原文 |
出版地 | TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND |
资助项目 | National Science Foundation of China[12133001] ; National Science Foundation of China[11927804] ; National Science Foundation of China[11721303] ; National Science Foundation of China[11903003] ; National Science Foundation of China[11890693] ; China Manned Space Project[CMS-CSST-2021-A06] ; Open Project Program of the Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences ; Chinese Academy of Sciences ; People's Government of Yunnan Province |
WOS关键词 | DIGITAL-SKY-SURVEY ; SUPERMASSIVE BLACK-HOLES ; LINE KEY PROJECT ; MILKY-WAY ; BACKGROUND QUASARS ; ABSORPTION-LINES ; SPECTRAL SURVEY ; K-CORRECTIONS ; LAMOST SURVEY ; LUMINOSITY |
WOS研究方向 | Astronomy & Astrophysics |
语种 | 英语 |
出版者 | IOP Publishing Ltd |
WOS记录号 | WOS:000832755400001 |
资助机构 | National Science Foundation of China[12133001, 11927804, 11721303, 11903003, 11890693] ; China Manned Space Project[CMS-CSST-2021-A06] ; Open Project Program of the Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences ; Chinese Academy of Sciences ; People's Government of Yunnan Province |
内容类型 | 期刊论文 |
版本 | 出版稿 |
源URL | [http://ir.ynao.ac.cn/handle/114a53/25514] |
专题 | 云南天文台_丽江天文观测站(南方基地) |
通讯作者 | Fu, Yuming |
作者单位 | 1.International Centre for Radio Astronomy Research (ICRAR), University of Western Australia, 35 Stirling Highway, Crawley, WA 6009, Australia 2.University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China; 3.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650216, People's Republic of China; 4.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650216, People's Republic of China; 5.Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, D-53121 Bonn, Germany; 6.Purple Mountain Observatory, Chinese Academy of Sciences, 10 Yuanhua Road, Nanjing 210023, People's Republic of China; 7.Department of Astronomy, University of Michigan, 311 West Hall, 1085 S. University Avenue, Ann Arbor, MI, 48109-1107, USA; 8.Centre for Gravitational Astrophysics, Australian National University, Canberra, ACT 2600, Australia; 9.Research School of Astronomy and Astrophysics, Australian National University, Canberra, ACT 2611, Australia; 10.School of Physics, University of Melbourne, Parkville, Victoria 3010, Australia; |
推荐引用方式 GB/T 7714 | Fu, Yuming,Wu, Xue-Bing,Jiang, Linhua,et al. Finding Quasars behind the Galactic Plane. II. Spectroscopic Identifications of 204 Quasars at divide b divide < 20 degrees[J]. ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES,2022,261(2). |
APA | Fu, Yuming.,Wu, Xue-Bing.,Jiang, Linhua.,Zhang, Yanxia.,Huo, Zhi-Ying.,...&Zuo, Pei.(2022).Finding Quasars behind the Galactic Plane. II. Spectroscopic Identifications of 204 Quasars at divide b divide < 20 degrees.ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES,261(2). |
MLA | Fu, Yuming,et al."Finding Quasars behind the Galactic Plane. II. Spectroscopic Identifications of 204 Quasars at divide b divide < 20 degrees".ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES 261.2(2022). |
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