External photon fields in Fermi bright blazars
文献类型：期刊论文
| 作者 | Gao XY(高小燕)1,2,3 ; Wang JC(王建成)1,2; Zhou M(周明)1,2,3
|
| 刊名 | RESEARCH IN ASTRONOMY AND ASTROPHYSICS
 |
| 出版日期 | 2011-08 |
| 卷号 | 11期号:8页码:902-908 |
| 关键词 | galaxies: active galaxies: jets gamma-rays: galaxies radiation mechanism: non-thermal |
| ISSN号 | 1674-4527 |
| 产权排序 | 第一完成单位 |
| 通讯作者 | Gao, XY (reprint author), Chinese Acad Sci, Natl Astron Observ Yunnan Observ, Kunming 650011, Peoples R China. |
| 英文摘要 | The external Compton (EC) model is used to study the high energy emission of some blazars, in which the external photon field is considered to dominate inverse Compton radiation. We explore the properties of the external photon field through analyzing the FERMI LAT bright AGN sample within three months of the start of operations in sky-survey mode. In the sample, assuming the high energy radiation of low synchrotron peaked blazars is from the EC process, we find that the external photon parameter U-ext/nu(ext) may not be a constant. Calculating synchrotron and inverse Compton luminosity from the quasi-simultaneous broadband spectral energy distributions, we find that they have an approximately linear relation. This indicates that the ratio of external photon and magnetic energy density is a constant in the comoving frame, implying that the Lorentz factor of the emitting blob depends on the external photon field and magnetic field. The result gives a strong constraint on the dynamic jet model. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 学科主题 | Astronomy & Astrophysics |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | RELATIVISTIC MHD SIMULATIONS ; ACTIVE GALACTIC NUCLEI ; HIGH-ENERGY EMISSION ; BROAD-LINE REGION ; TEV GAMMA-RAYS ; EXTRAGALACTIC JETS ; SPACE-TELESCOPE ; AREA TELESCOPE ; 3C 279 ; RADIATION |
| 收录类别 | SCI |
| 原文出处 | http://arxiv.org/abs/1104.1835 |
| 语种 | 英语 |
| WOS记录号 | WOS:000294232800004 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/5008]  |
| 专题 | 云南天文台_高能天体物理研究组 |
| 作者单位 | 1.National Astronomical Observatories/Yunnan Observatories, Chinese Academy of Sciences, kunming, Yunnan province 650011, P.R. China 2.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, kunming, Yunnan province 650011, P.R. China 3.Graduate School, Chinese Academy of Sciences, Beijing, P.R. China |
| 推荐引用方式 GB/T 7714 | Gao XY,Wang JC,Zhou M. External photon fields in Fermi bright blazars[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2011,11(8):902-908. |
| APA | Gao XY,Wang JC,&Zhou M.(2011).External photon fields in Fermi bright blazars.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,11(8),902-908. |
| MLA | Gao XY,et al."External photon fields in Fermi bright blazars".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 11.8(2011):902-908. |
入库方式： OAI收割
来源：云南天文台
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。