The synchrotron emission of jets with transverse velocity discrepancy

	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
刊名	CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS
	2004-08
卷号	4 期号:4 页码:311-319
关键词	galaxies : jets radiation mechanisms : non-thermal methods : numerical
ISSN号	1009-9271
通讯作者	Li, HQ (reprint author), Chinese Acad Sci, Yunnan Observ, Natl Astron Observ, Kunming 650011, Peoples R China.
产权排序	第一完成单位
英文摘要	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.
学科主题	Astronomy & Astrophysics
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Astronomy & Astrophysics
研究领域[WOS]	Astronomy & Astrophysics
关键词[WOS]	CONTINUUM EMISSION ; RELATIVISTIC JETS ; RADIO GALAXIES ; UNIFICATION ; MODEL
收录类别	SCI
原文出处	http://iopscience.iop.org/1009-9271/4/4/311/
语种	英语
WOS记录号	WOS:000223524200002
内容类型	期刊论文
源URL	[http://ir.ynao.ac.cn/handle/114a53/4940]
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 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
推荐引用方式 GB/T 7714	Li HQ,Wang JC,Xue L. 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.(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.