The synchrotron emission of jets with transverse velocity discrepancy | |
Li HQ(李惠泉)1,2,3; Wang JC(王建成)1,2; Xue L(薛力)1,2,3; Li, HQ (reprint author), Chinese Acad Sci, Yunnan Observ, Natl Astron Observ, Kunming 650011, Peoples R China. | |
发表期刊 | CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS |
2004-08 | |
卷号 | 4期号:4页码:311-319 |
产权排序 | 第1完成单位 |
收录类别 | SCI |
关键词 | Galaxies : Jets Radiation Mechanisms : Non-thermal Methods : Numerical |
摘要 | It has been commonly accepted that the bulk velocity of extragalactic jets varies in all directions. We examined the synchrotron radiation of a jet with velocity structure in the direction perpendicular to its axis and found that the spectral energy distribution (SED) is not strongly influenced by this circumstance, that there is only a small increase in the emission intensity and almost no shift in the peak frequency. For objects with smaller inclined angles theta(0) between the jet axis and the line of our sight, such as Blazars, the effect is more important. When theta(0) exceeds a critical value there is no longer any change in the SED. To compare the bulk speed with different velocity structure, an equivalent speed (beta) is defined which would reproduce the same spectral profile. There possibly exists a stress f(mu)(y) between layers of the outflow when the velocity is not the same in the jet. |
项目资助者 | Supported by the National Natural Science Foundation of China |
语种 | 英语 |
学科领域 | Astronomy & Astrophysics |
文章类型 | Article |
ISSN | 1009-9271 |
URL | 查看原文 |
归档日期 | 2004-10-13 |
WOS记录号 | WOS:000223524200002 |
WOS研究方向 | Astronomy & Astrophysics |
WOS类目 | Astronomy & Astrophysics |
关键词[WOS] | CONTINUUM EMISSION ; RELATIVISTIC JETS ; RADIO GALAXIES ; UNIFICATION ; MODEL |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.ynao.ac.cn/handle/114a53/4940 |
专题 | 高能天体物理研究组 |
通讯作者 | Li, HQ (reprint author), Chinese Acad Sci, Yunnan Observ, Natl Astron Observ, Kunming 650011, Peoples R China. |
作者单位 | 1.National Astronomical Observatories, Yunnan Observatory, Chinese Academy of Sciences, Kunming 650011 2.United Laboratory for Optical Astronomy, Chinese Academy of Sciences 3.Graduate School of the Chinese Academy of Sciences |
第一作者单位 | 中国科学院云南天文台 |
推荐引用方式 GB/T 7714 | Li HQ,Wang JC,Xue L,et al. The synchrotron emission of jets with transverse velocity discrepancy[J]. CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS,2004,4(4):311-319. |
APA | Li HQ,Wang JC,Xue L,&Li, HQ .(2004).The synchrotron emission of jets with transverse velocity discrepancy.CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS,4(4),311-319. |
MLA | Li HQ,et al."The synchrotron emission of jets with transverse velocity discrepancy".CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS 4.4(2004):311-319. |
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TheSynchrotronEm_省略_(408KB) | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | 浏览 请求全文 |
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