| The Synchrotron Emission of Jets with Transverse Velocity Discrepancy |
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| 引用本文： | Hui-Quan Li,Jian-Cheng Wang and Li XueNational Astronomical Observatories,Yunnan Observatory,Chinese Academy of Sciences,Kunming 650011, li_huqu@sohu.comUnited Laboratory for Optical Astronomy,Chinese Academy of SciencesGraduate School of the Chinese Academy of Sciences. The Synchrotron Emission of Jets with Transverse Velocity Discrepancy[J]. 中国天文和天体物理学报, 2004, 4(4): 311-319 |
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| 作者姓名： | Hui-Quan Li Jian-Cheng Wang and Li XueNational Astronomical Observatories Yunnan Observatory Chinese Academy of Sciences Kunming 650011 li_huqu@sohu.comUnited Laboratory for Optical Astronomy Chinese Academy of SciencesGraduate School of the Chinese Academy of Sciences |
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| 作者单位： | Hui-Quan Li，Jian-Cheng Wang and Li XueNational Astronomical Observatories，Yunnan Observatory，Chinese Academy of Sciences，Kunming 650011; li_huqu@sohu.comUnited Laboratory for Optical Astronomy，Chinese Academy of SciencesGraduate School of the Chinese Academy of Sciences |
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| 基金项目： | Supported by the National Natural Science Foundation of China. |
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| 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 θ0 between the jet axis and the line of our sight, such as Blazars, the effect is more important. When θ0 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 (β) is defined which would reproduce the same spectral profile. There possibly exists a stress fμ(y) between layers of the outflow when the velocity is not the same in the jet.
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| 关 键 词： | 同步加速器 银河系外喷射 辐射 数字表示 星系核 |
The Synchrotron Emission of Jets with Transverse Velocity Discrepancy |
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| Hui-QuanLi Jian-ChengWang LiXue. The Synchrotron Emission of Jets with Transverse Velocity Discrepancy[J]. Chinese Journal of Astronomy and Astrophysics, 2004, 4(4): 311-319 |
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| Authors: | Hui-QuanLi Jian-ChengWang LiXue |
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| Affiliation: | [1]NationalAstronomicalObservatories,YunnanObservatory,ChineseAcademyofSciences,Kunming650011 [2]UnitedLaboratoryforOpticalAstronomy,ChineseAcademyofSciences [3]GraduateSchooloftheChineseAcademyofSciences,ChineseAcademyofSciences |
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| Abstract: | |
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| Keywords: | galaxies: jets - radiation mechanisms: non-thermal - methods:numerical |
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