Multi-wavelength Variability Properties of CGRaBS J0733+0456: Identifying a Distant Gamma-Ray Blazar at z=3.01
文献类型：期刊论文
| 作者 | Liao, Neng-Hui1,2; Dou, Li-Ming3; Jiang, Ning4; Wang, Yi-Bo4; Fan, Yi-Zhong2 ; Wang, Ting-Gui4
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| 刊名 | ASTROPHYSICAL JOURNAL LETTERS
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| 出版日期 | 2019-07-01 |
| 卷号 | 879期号:1页码:8 |
| 关键词 | galaxies: active galaxies: high-redshift galaxies: jets gamma rays: galaxies quasars: individual (CGRaBS J0733+0456) |
| ISSN号 | 2041-8205 |
| DOI | 10.3847/2041-8213/ab2893 |
| 通讯作者 | Liao, Neng-Hui(nhliao@gzu.edu.cn) |
| 英文摘要 | We 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. |
| WOS关键词 | BLACK-HOLES ; EMISSION ; COMPTONIZATION ; RADIATION ; CATALOG ; MODEL ; JET |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000476953500003 |
| 出版者 | IOP PUBLISHING LTD |
| 源URL | [http://libir.pmo.ac.cn/handle/332002/27081]  |
| 专题 | 中国科学院紫金山天文台 |
| 通讯作者 | Liao, Neng-Hui |
| 作者单位 | 1.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 |
| 推荐引用方式 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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来源：紫金山天文台
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