NAOC Open IR
Evidence for Two Distinct Broad-line Regions from Reverberation Mapping of PG 0026+129
Hu, Chen1; Li, Sha-Sha1,2; Guo, Wei-Jian1,2; Yang, Sen1,2; Yang, Zi-Xu1,2; Bao, Dong-Wei1,2; Jiang, Bo-Wei1,2; Du, Pu1; Li, Yan-Rong1; Xiao, Ming1; Songsheng, Yu-Yang1,2; Yu, Zhe1,2; Bai, Jin-Ming3; Ho, Luis C.4,5; Bian, Wei-Hao6; Brotherton, Michael S.7; Yuan, Ye-Fei8; Aceituno, Jesus9,10; Winkler, Hartmut1,11; Wang, Jian-Min1,2,12
2020-12-01
Source PublicationASTROPHYSICAL JOURNAL
ISSN0004-637X
Volume905Issue:1Pages:18
AbstractWe report on the results of a new spectroscopic monitoring campaign of the quasar PG 0026+129 at the Calar Alto Observatory 2.2m telescope from 2017 July to 2020 February. Significant variations in the fluxes of the continuum and broad emission lines, including H beta and He II, were observed in the first and third years, and clear time lags between them are measured. The broad H beta line profile consists of two Gaussian components: an intermediate-width H beta(IC) with an FWHM of 1964 +/- 18 km s(-1) and another very broad H beta(VBC) with an FWHM of 7570 +/- 83 km s(-1). H beta(IC) has long time lags of similar to 40-60 days in the rest frame, while H beta(VBC) shows nearly zero time delay with respect to the optical continuum at 5100 A. The velocity-resolved delays show consistent results: lags of similar to 30-50 days at the core of the broad H beta line and roughly zero lags at the wings. H beta(IC) has a redshift of similar to 400 km s(-1), which seems to be stable for nearly 30 yr by comparing with archived spectra, and may originate from an infall. The rms spectrum of H beta(VBC) shows a double-peaked profile with brighter blue peak and extended red wing in the first year, which matches the signature of a thin disk. Both the double-peaked profile and the near-zero lag suggest that H beta(VBC) comes from a region associated with the part of the accretion disk that emits the optical continuum. Adopting the FWHM (in the rms spectrum) and the time lag measured for the total H beta line, and a virial factor of 1.5, we obtain a virial mass of 2.89(-0.69)(+0.60) x 10(7) M-circle dot for the central black hole in this quasar.
KeywordSupermassive black holes Seyfert galaxies Active galactic nuclei Quasars Reverberation mapping Time domain astronomy
Funding OrganizationNational Key R&D Program of China ; National Key R&D Program of China ; National Science Foundation of China ; National Science Foundation of China ; Key Research Program of Frontier Sciences of the Chinese Academy of Sciences (CAS) ; Key Research Program of Frontier Sciences of the Chinese Academy of Sciences (CAS) ; CAS Key Research Program ; CAS Key Research Program ; Strategic Priority Research Program of the CAS ; Strategic Priority Research Program of the CAS ; State Agency for Research of the Spanish MCIU through the "Center of Excellence Severo Ochoa" award ; State Agency for Research of the Spanish MCIU through the "Center of Excellence Severo Ochoa" award ; National Key R&D Program of China ; National Key R&D Program of China ; National Science Foundation of China ; National Science Foundation of China ; Key Research Program of Frontier Sciences of the Chinese Academy of Sciences (CAS) ; Key Research Program of Frontier Sciences of the Chinese Academy of Sciences (CAS) ; CAS Key Research Program ; CAS Key Research Program ; Strategic Priority Research Program of the CAS ; Strategic Priority Research Program of the CAS ; State Agency for Research of the Spanish MCIU through the "Center of Excellence Severo Ochoa" award ; State Agency for Research of the Spanish MCIU through the "Center of Excellence Severo Ochoa" award ; National Key R&D Program of China ; National Key R&D Program of China ; National Science Foundation of China ; National Science Foundation of China ; Key Research Program of Frontier Sciences of the Chinese Academy of Sciences (CAS) ; Key Research Program of Frontier Sciences of the Chinese Academy of Sciences (CAS) ; CAS Key Research Program ; CAS Key Research Program ; Strategic Priority Research Program of the CAS ; Strategic Priority Research Program of the CAS ; State Agency for Research of the Spanish MCIU through the "Center of Excellence Severo Ochoa" award ; State Agency for Research of the Spanish MCIU through the "Center of Excellence Severo Ochoa" award ; National Key R&D Program of China ; National Key R&D Program of China ; National Science Foundation of China ; National Science Foundation of China ; Key Research Program of Frontier Sciences of the Chinese Academy of Sciences (CAS) ; Key Research Program of Frontier Sciences of the Chinese Academy of Sciences (CAS) ; CAS Key Research Program ; CAS Key Research Program ; Strategic Priority Research Program of the CAS ; Strategic Priority Research Program of the CAS ; State Agency for Research of the Spanish MCIU through the "Center of Excellence Severo Ochoa" award ; State Agency for Research of the Spanish MCIU through the "Center of Excellence Severo Ochoa" award
DOI10.3847/1538-4357/abc2da
WOS KeywordACTIVE GALACTIC NUCLEI ; FE II EMISSION ; SUPERMASSIVE BLACK-HOLES ; CONTINUUM EMISSION ; ACCRETION DISKS ; H-BETA ; RADIATION PRESSURE ; VARIABILITY ; QUASARS ; MASS
Language英语
Funding ProjectNational Key R&D Program of China[2016YFA0400701] ; National Key R&D Program of China[2016YFA0400702] ; National Science Foundation of China[11721303] ; National Science Foundation of China[11773029] ; National Science Foundation of China[11833008] ; National Science Foundation of China[11873048] ; National Science Foundation of China[11922304] ; National Science Foundation of China[11973029] ; National Science Foundation of China[11991051] ; National Science Foundation of China[11991052] ; National Science Foundation of China[11991054] ; National Science Foundation of China[12003036] ; National Science Foundation of China[12022301] ; Key Research Program of Frontier Sciences of the Chinese Academy of Sciences (CAS)[QYZDJ-SSW-SLH007] ; CAS Key Research Program[KJZDEW-M06] ; Strategic Priority Research Program of the CAS[XDB23000000] ; Strategic Priority Research Program of the CAS[XDB23010400] ; State Agency for Research of the Spanish MCIU through the "Center of Excellence Severo Ochoa" award[SEV-2017-0709]
Funding OrganizationNational Key R&D Program of China ; National Key R&D Program of China ; National Science Foundation of China ; National Science Foundation of China ; Key Research Program of Frontier Sciences of the Chinese Academy of Sciences (CAS) ; Key Research Program of Frontier Sciences of the Chinese Academy of Sciences (CAS) ; CAS Key Research Program ; CAS Key Research Program ; Strategic Priority Research Program of the CAS ; Strategic Priority Research Program of the CAS ; State Agency for Research of the Spanish MCIU through the "Center of Excellence Severo Ochoa" award ; State Agency for Research of the Spanish MCIU through the "Center of Excellence Severo Ochoa" award ; National Key R&D Program of China ; National Key R&D Program of China ; National Science Foundation of China ; National Science Foundation of China ; Key Research Program of Frontier Sciences of the Chinese Academy of Sciences (CAS) ; Key Research Program of Frontier Sciences of the Chinese Academy of Sciences (CAS) ; CAS Key Research Program ; CAS Key Research Program ; Strategic Priority Research Program of the CAS ; Strategic Priority Research Program of the CAS ; State Agency for Research of the Spanish MCIU through the "Center of Excellence Severo Ochoa" award ; State Agency for Research of the Spanish MCIU through the "Center of Excellence Severo Ochoa" award ; National Key R&D Program of China ; National Key R&D Program of China ; National Science Foundation of China ; National Science Foundation of China ; Key Research Program of Frontier Sciences of the Chinese Academy of Sciences (CAS) ; Key Research Program of Frontier Sciences of the Chinese Academy of Sciences (CAS) ; CAS Key Research Program ; CAS Key Research Program ; Strategic Priority Research Program of the CAS ; Strategic Priority Research Program of the CAS ; State Agency for Research of the Spanish MCIU through the "Center of Excellence Severo Ochoa" award ; State Agency for Research of the Spanish MCIU through the "Center of Excellence Severo Ochoa" award ; National Key R&D Program of China ; National Key R&D Program of China ; National Science Foundation of China ; National Science Foundation of China ; Key Research Program of Frontier Sciences of the Chinese Academy of Sciences (CAS) ; Key Research Program of Frontier Sciences of the Chinese Academy of Sciences (CAS) ; CAS Key Research Program ; CAS Key Research Program ; Strategic Priority Research Program of the CAS ; Strategic Priority Research Program of the CAS ; State Agency for Research of the Spanish MCIU through the "Center of Excellence Severo Ochoa" award ; State Agency for Research of the Spanish MCIU through the "Center of Excellence Severo Ochoa" award
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000599121600001
PublisherIOP PUBLISHING LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/80040
Collection中国科学院国家天文台
Corresponding AuthorHu, Chen; Wang, Jian-Min
Affiliation1.Chinese Acad Sci, Inst High Energy Phys, Key Lab Particle Astrophys, 19B Yuquan Rd, Beijing 100049, Peoples R China
2.Univ Chinese Acad Sci, Sch Astron & Space Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Yunnan Observ, Kunming 650011, Yunnan, Peoples R China
4.Peking Univ, Kavli Inst Astron & Astrophys, Beijing 100871, Peoples R China
5.Peking Univ, Sch Phys, Dept Astron, Beijing 100871, Peoples R China
6.Nanjing Normal Univ, Dept Phys, Nanjing 210097, Peoples R China
7.Univ Wyoming, Dept Phys & Astron, Laramie, WY 82071 USA
8.Univ Sci & Technol China, Dept Astron, Hefei 230026, Peoples R China
9.Ctr Astron Hispano Aleman, Sierra Filabres Sn, E-04550 Almeria, Spain
10.CSIC, Inst Astrofis Andalucia, Glorieta Astron Sn, E-18008 Granada, Spain
11.Univ Johannesburg, Dept Phys, POB 524, ZA-2006 Auckland Pk, South Africa
12.Chinese Acad Sci, Natl Astron Observ China, 20A Datun Rd, Beijing 100020, Peoples R China
Recommended Citation
GB/T 7714
Hu, Chen,Li, Sha-Sha,Guo, Wei-Jian,et al. Evidence for Two Distinct Broad-line Regions from Reverberation Mapping of PG 0026+129[J]. ASTROPHYSICAL JOURNAL,2020,905(1):18.
APA Hu, Chen.,Li, Sha-Sha.,Guo, Wei-Jian.,Yang, Sen.,Yang, Zi-Xu.,...&Wang, Jian-Min.(2020).Evidence for Two Distinct Broad-line Regions from Reverberation Mapping of PG 0026+129.ASTROPHYSICAL JOURNAL,905(1),18.
MLA Hu, Chen,et al."Evidence for Two Distinct Broad-line Regions from Reverberation Mapping of PG 0026+129".ASTROPHYSICAL JOURNAL 905.1(2020):18.
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