Magnetic field structures in active compact radio sources
Magnetic field structures in active compact radio sources
复制标题
有源紧凑型无线电源中的磁场结构
DOI：
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发表时间：
1985
期刊：
影响因子：
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通讯作者：
P. Hodge
中科院分区：
文献类型：
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作者：
T. Jones;L. Rudnick;R. Fiedler;H. Aller;M. Aller;P. Hodge
本文分析了从1977年12月至1980年7月的六个时期约20个活跃的致密射电源在1.4 GHz至90 GHz之间的同时多频线性偏振测量数据。此外，每月8千兆赫极化数据相同的来源进行了审查。这些源的一般极化特性可以很好地描述在很大程度上是湍流和轻微的各向异性的磁场。在毫角秒尺度上，磁场对称轴通常与源结构轴对齐（OJ 287是一个明显的例外）。Monte Carlo计算表明，观察到的极化变化，特别是旋转器极化事件，可以在这个模型中产生的结果，通过演变的湍流磁场产生的随机游走。43篇参考文献。
The analysis of simultaneous multifrequency linear polarimetry data between 1.4 GHz and 90 GHz for about 20 active, compact radio sources at six epochs from 1977 December 10 1980 July is presented. In addition, monthly 8 Ghz polarization data on the same sources were examined. The general polarization characteristics of these sources can be well described in terms of magnetic fields which are largely turbulent and slightly anisotropic. The magnetic field symmetry axes are generally aligned with the source structural axes on the milli-arcsecond scale (OJ 287 is a notable exception.) Monte Carlo calculations indicate that observed polarization variations and in particular rotator polarization events can be produced in this model as a consequence of random walks generated through evolution of the turbulent magnetic field. 43 references.