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Finding Quasars behind the Galactic Plane. II. Spectroscopic Identifications of 204 Quasars at divide b divide < 20 degrees

文献类型：期刊论文

作者Fu, Yuming1,2; Wu, Xue-Bing1,2; Jiang, Linhua1,2; Zhang, Yanxia3; Huo, Zhi-Ying4; Ai, Y. L.5,6; Yang, Qian7; Ma, Qinchun1,2; Feng, Xiaotong1,2; Joshi, Ravi2
刊名ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES
出版日期2022-08-01
卷号261期号:2页码:17
ISSN号0067-0049
DOI10.3847/1538-4365/ac7f3e
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.
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
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 ; National Science Foundation of China ; China Manned Space Project ; China Manned Space Project ; Open Project Program of the Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences ; Open Project Program of the Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; People's Government of Yunnan Province ; People's Government of Yunnan Province ; National Science Foundation of China ; National Science Foundation of China ; China Manned Space Project ; China Manned Space Project ; Open Project Program of the Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences ; Open Project Program of the Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; People's Government of Yunnan Province ; People's Government of Yunnan Province ; National Science Foundation of China ; National Science Foundation of China ; China Manned Space Project ; China Manned Space Project ; Open Project Program of the Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences ; Open Project Program of the Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; People's Government of Yunnan Province ; People's Government of Yunnan Province ; National Science Foundation of China ; National Science Foundation of China ; China Manned Space Project ; China Manned Space Project ; Open Project Program of the Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences ; Open Project Program of the Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; People's Government of Yunnan Province ; People's Government of Yunnan Province
源URL[http://ir.bao.ac.cn/handle/114a11/87851]  
专题中国科学院国家天文台
通讯作者Fu, Yuming
作者单位1.Peking Univ, Sch Phys, Dept Astron, Beijing 100871, Peoples R China
2.Peking Univ, Kavli Inst Astron & Astrophys, Beijing 100871, Peoples R China
3.Natl Astron Observ, CAS Key Lab Opt Astron, Beijing 100101, Peoples R China
4.Chinese Acad Sci, Natl Astron Observ, Beijing 100101, Peoples R China
5.Shenzhen Technol Univ, Coll Engn Phys, Shenzhen 518118, Peoples R China
6.Shenzhen Key Lab Ultraintense Laser & Adv Mat Tec, Shenzhen 518118, Peoples R China
7.Univ Illinois, Dept Astron, Urbana, IL 61801 USA
8.Univ Melbourne, Sch Phys, Parkville, Vic 3010, Australia
9.Australian Natl Univ, Res Sch Astron & Astrophys, Canberra, ACT 2611, Australia
10.Australian Natl Univ, Ctr Gravitat Astrophys, Canberra, ACT 2600, 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):17.
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),17.
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):17.

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