KMS National Astronomical Observatories, CAS
| The Composite X-Ray Spectrum of 3CRR Quasars | |
| Zhou, Minhua1,2; Gu, Minfeng1 | |
| 2020-04-01 | |
| Source Publication | ASTROPHYSICAL JOURNAL
 |
| ISSN | 0004-637X |
| Volume | 893Issue:1Pages:16 |
| Abstract | 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. |
| Keyword | Quasars Catalogs X-ray quasars Radio loud quasars Spectral energy distribution |
| Funding Organization | 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 |
| DOI | 10.3847/1538-4357/ab7dca |
| WOS Keyword | ACTIVE GALACTIC NUCLEI ; MAGNETIC-FIELD STRENGTHS ; ALL-SKY SURVEY ; MG-II ABSORPTION ; RADIO-LOUD ; DATA RELEASE ; CHANDRA OBSERVATIONS ; VLA OBSERVATIONS ; UNIFIED SCHEMES ; JET EMISSION |
| Language | 英语 |
| Funding Project | 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 |
| Funding Organization | 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 |
| WOS Research Area | Astronomy & Astrophysics |
| WOS Subject | Astronomy & Astrophysics |
| WOS ID | WOS:000528741200001 |
| Publisher | IOP PUBLISHING LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.bao.ac.cn/handle/114a11/55075 |
| Collection | 中国科学院国家天文台 |
| Corresponding Author | Zhou, Minhua |
| Affiliation | 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 |
| Recommended Citation 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. |
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