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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
ISSN1009-9271
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
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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
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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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