活动星系致密核的研究 |
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引用本文: | 蒋栋荣,周建峰.活动星系致密核的研究[J].紫金山天文台台刊,1999,18(3):235-238. |
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作者姓名: | 蒋栋荣 周建峰 |
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作者单位: | 中国科学院上海天文台!上海200030(蒋栋荣),中国科学院国家天文观测中心!北京100080(周建峰) |
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摘 要: | 本文对几个大样本VLBI观测的致密核(core) 进行了统计研究,包括核的谱指数, 核的角大小随VLBI观测频率的变化,核角大小与致密喷流角大小的关系以及核角大小随红移的变化,并在非均匀喷流模型下估算了喷流中磁场和相对论性电子密度的分布。
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关 键 词: | 活动星系核 VLBI 喷流 致密核 |
A STUDY ON VLBI CORE IN AGNS |
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Authors: | Jiang Dong rong Zhou Jian feng |
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Abstract: | The paper present some preliminary statistical results of the VLBI core in the active galactic nuclei from large samples, including the spectral index, the variation of the core angular size with the VLBI observing frequency, the relation between the core size and the compact jet angular size and the distribution of core size over redshift. In the inhomogenous model we estimated the distributions of the magnetic field and the electron density in the jet. |
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Keywords: | active galactic nuclei VLBI jets core |
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