The X-ray emission from the knots in 3C 120
文献类型：期刊论文
| 作者 | Zhang J(张晋)1,2,3 ; Li SK(李少昆)1,3
|
| 刊名 | SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
 |
| 出版日期 | 2010-01 |
| 卷号 | 53期号:Supplement 1页码:212-215 |
| 关键词 | 3C 120 knots X-rays non-thermal emission |
| ISSN号 | 1674-7348 |
| 产权排序 | 第一完成单位 |
| 通讯作者 | Zhang, J (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, Kunming 650011, Peoples R China. |
| 英文摘要 | 3C 120 is a Seyfert galaxy with a well detected X-ray jet. We investigate the X-ray emission of its five jet knots and fit their spectral energy distributions (SEDs) from the radio to the X-ray bands with a single-zone lepton model. We find that the SEDs of knots k7, s2, and s3 can be explained by synchrotron radiation, and the X-rays are the simple extension of the radio-optical emission component, but that of the inner knot k4 requires the IC/CMB model, in which the X-rays are due to the inverse Compton scattering of the cosmic microwave background photons by relativistic electrons in the jet with a beaming factor delta similar to 14. The outer knot k25 is resolved into a three-part sub-structure. It is shown that the fitting of the X-rays from this knot with the IC/CMB model needs an extraordinary beaming factor delta similar to 15-25 for a jet at the kpc scale. If the X-rays of knot k25 are produced by synchrotron radiation similar to k7, s2, and s3, they may be contributed by a relativistic electron population whose radiations in other wavelengths are not detected. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 学科主题 | Physics |
| 分类号 | P172.2 |
| 类目[WOS] | Physics, Multidisciplinary |
| 研究领域[WOS] | Physics |
| 关键词[WOS] | LARGE-SCALE JETS ; HOT-SPOTS ; RADIO JET ; CENTAURUS ; BLAZARS ; PICTOR ; 3C-120 ; MODEL |
| 收录类别 | SCI |
| 原文出处 | http://link.springer.com/article/10.1007%2Fs11433-010-0001-9 |
| 语种 | 英语 |
| WOS记录号 | WOS:000280291800048 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/5397]  |
| 专题 | 云南天文台_丽江天文观测站（南方基地） |
| 作者单位 | 1.National Astronomical Observatories/Yunnan Observatory, Chinese Academy of Sciences, Kunming, 650011, China 2.College of Physics and Electronic Engineering, Guangxi Teachers Education University, Nanning, 530023, China 3.Graduate University of the Chinese Academy of Sciences, Beijing, 100049, China |
| 推荐引用方式 GB/T 7714 | Zhang J,Li SK. The X-ray emission from the knots in 3C 120[J]. SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,2010,53(Supplement 1):212-215. |
| APA | Zhang J,&Li SK.(2010).The X-ray emission from the knots in 3C 120.SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,53(Supplement 1),212-215. |
| MLA | Zhang J,et al."The X-ray emission from the knots in 3C 120".SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY 53.Supplement 1(2010):212-215. |
入库方式： OAI收割
来源：云南天文台
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