The Composite X-Ray Spectrum of 3CRR Quasars
文献类型：期刊论文
| 作者 | Zhou, Minhua1,2; Gu, Minfeng1 |
| 刊名 | ASTROPHYSICAL JOURNAL
 |
| 出版日期 | 2020-04-01 |
| 卷号 | 893期号:1页码:16 |
| 关键词 | Quasars Catalogs X-ray quasars Radio loud quasars Spectral energy distribution |
| ISSN号 | 0004-637X |
| DOI | 10.3847/1538-4357/ab7dca |
| 英文摘要 | The reason for the difference between the composite X-ray spectrum for radio-loud quasars (RLQs) versus radio-quiet quasars (RQQs) is still unclear. To study this difference, we built a new composite X-ray spectrum of RLQs using Chandra X-ray data and Sloan Digital Sky Survey optical data for the sample of 3CRR quasars. We find the X-ray spectra of all 3CRR quasars, except for 3C 351, have no soft X-ray excess and can be fitted well with an absorbed power-law model. Our composite X-ray spectrum is similar to that of Shang et al. for RLQs, showing higher hard X-ray and lower soft X-ray flux than the composite X-ray spectrum of RQQs. Most blazar-like 3CRR quasars have higher X-ray flux than the median composite X-ray spectrum, which could be related to the contribution of beamed jet emission at X-ray band. From the literature, we find that nineteen 3CRR quasars have extended X-ray emission related to radio jets, indicating the inevitable contribution of jets at X-ray band. In contrast to RQQs, the X-ray photon index of 3CRR quasars does not correlate with the Eddington ratio. Our results suggest that the jet emission at X-ray band in RLQs could be related to the difference in composite X-ray spectrum between RLQs and RQQs. |
| WOS关键词 | ACTIVE GALACTIC NUCLEI ; MAGNETIC-FIELD STRENGTHS ; ALL-SKY SURVEY ; MG-II ABSORPTION ; RADIO-LOUD ; DATA RELEASE ; CHANDRA OBSERVATIONS ; VLA OBSERVATIONS ; UNIFIED SCHEMES ; JET EMISSION |
| 资助项目 | National Science Foundation of China[11873073] ; National Science Foundation of China[U1531245] ; National Science Foundation of China[11773056] ; National Science Foundation of China[U1831138] ; Alfred P. Sloan Foundation ; National Science Foundation ; U.S. Department of Energy Office of Science ; National Aeronautics and Space Administration |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000528741200001 |
| 出版者 | IOP PUBLISHING LTD |
| 资助机构 | National Science Foundation of China ; National Science Foundation of China ; Alfred P. Sloan Foundation ; Alfred P. Sloan Foundation ; National Science Foundation ; National Science Foundation ; U.S. Department of Energy Office of Science ; U.S. Department of Energy Office of Science ; National Aeronautics and Space Administration ; National Aeronautics and Space Administration ; National Science Foundation of China ; National Science Foundation of China ; Alfred P. Sloan Foundation ; Alfred P. Sloan Foundation ; National Science Foundation ; National Science Foundation ; U.S. Department of Energy Office of Science ; U.S. Department of Energy Office of Science ; National Aeronautics and Space Administration ; National Aeronautics and Space Administration ; National Science Foundation of China ; National Science Foundation of China ; Alfred P. Sloan Foundation ; Alfred P. Sloan Foundation ; National Science Foundation ; National Science Foundation ; U.S. Department of Energy Office of Science ; U.S. Department of Energy Office of Science ; National Aeronautics and Space Administration ; National Aeronautics and Space Administration ; National Science Foundation of China ; National Science Foundation of China ; Alfred P. Sloan Foundation ; Alfred P. Sloan Foundation ; National Science Foundation ; National Science Foundation ; U.S. Department of Energy Office of Science ; U.S. Department of Energy Office of Science ; National Aeronautics and Space Administration ; National Aeronautics and Space Administration |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/55074]  |
| 专题 | 中国科学院国家天文台 |
| 通讯作者 | Zhou, Minhua |
| 作者单位 | 1.Chinese Acad Sci, Shanghai Astron Observ, Key Lab Res Galaxies & Cosmol, 80 Nandan Rd, Shanghai 200030, Peoples R China 2.Univ Chinese Acad Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhou, Minhua,Gu, Minfeng. The Composite X-Ray Spectrum of 3CRR Quasars[J]. ASTROPHYSICAL JOURNAL,2020,893(1):16. |
| APA | Zhou, Minhua,&Gu, Minfeng.(2020).The Composite X-Ray Spectrum of 3CRR Quasars.ASTROPHYSICAL JOURNAL,893(1),16. |
| MLA | Zhou, Minhua,et al."The Composite X-Ray Spectrum of 3CRR Quasars".ASTROPHYSICAL JOURNAL 893.1(2020):16. |
入库方式： OAI收割
来源：国家天文台
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