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Multi-wavelength Variability Properties of CGRaBS J0733+0456: Identifying a Distant Gamma-Ray Blazar at z=3.01
Liao, Neng-Hui1,2; Dou, Li-Ming3; Jiang, Ning4; Wang, Yi-Bo4; Fan, Yi-Zhong2; Wang, Ting-Gui4
2019-07-01
Source PublicationASTROPHYSICAL JOURNAL LETTERS
ISSN2041-8205
Volume879Issue:1Pages:8
Corresponding AuthorLiao, Neng-Hui(nhliao@gzu.edu.cn)
AbstractWe report on Owens Valley Radio Observatory (OVRO), WISE, Swift and Fermi-LAT observations of the high redshift blazar CGRaBS J0733+ 0456, from which significant flux variations in radio and infrared (IR), as well as gamma-ray domains, are detected. Particularly, the amplitude of long-term IR variation is over one order of magnitude, and the IR variability timescale can be constrained as short as a few hours in the source frame. The IR and gamma-ray light curves are found to be rather similar, and the strong quasi-simultaneous IR and gamma-ray flares are proven to be unique among the nearby gamma-ray sources. This is the first time that a gamma-ray blazar at redshift z >= 3 with multiwavelength flux variations (flares) is identified. Broadband spectral energy distributions in different flux states are constructed and theoretically described. The gamma-ray flares from some blazars as distant as redshift similar to 5 are expected to be detectable for Fermi-LAT.
Keywordgalaxies: active galaxies: high-redshift galaxies: jets gamma rays: galaxies quasars: individual (CGRaBS J0733+0456)
DOI10.3847/2041-8213/ab2893
WOS KeywordBLACK-HOLES ; EMISSION ; COMPTONIZATION ; RADIATION ; CATALOG ; MODEL ; JET
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000476953500003
PublisherIOP PUBLISHING LTD
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Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/27083
Collection中国科学院紫金山天文台
Corresponding AuthorLiao, Neng-Hui
Affiliation1.Guizhou Univ, Dept Phys & Astron, Coll Phys, Guiyang 550025, Guizhou, Peoples R China
2.Chinese Acad Sci, Purple Mt Observ, Key Lab Dark Matter & Space Astron, Nanjing 210034, Jiangsu, Peoples R China
3.Guangzhou Univ, Sch Phys & Elect Engn, Ctr Astrophys, Guangzhou 510006, Guangdong, Peoples R China
4.Univ Sci & Technol China, Chinese Acad Sci, Dept Astron, Key Lab Res Galaxies & Cosmol, Hefei 230026, Anhui, Peoples R China
Recommended Citation
GB/T 7714
Liao, Neng-Hui,Dou, Li-Ming,Jiang, Ning,et al. Multi-wavelength Variability Properties of CGRaBS J0733+0456: Identifying a Distant Gamma-Ray Blazar at z=3.01[J]. ASTROPHYSICAL JOURNAL LETTERS,2019,879(1):8.
APA Liao, Neng-Hui,Dou, Li-Ming,Jiang, Ning,Wang, Yi-Bo,Fan, Yi-Zhong,&Wang, Ting-Gui.(2019).Multi-wavelength Variability Properties of CGRaBS J0733+0456: Identifying a Distant Gamma-Ray Blazar at z=3.01.ASTROPHYSICAL JOURNAL LETTERS,879(1),8.
MLA Liao, Neng-Hui,et al."Multi-wavelength Variability Properties of CGRaBS J0733+0456: Identifying a Distant Gamma-Ray Blazar at z=3.01".ASTROPHYSICAL JOURNAL LETTERS 879.1(2019):8.
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