Origin of the structures and polarization in the classical double 3C 219

Origin of the structures and polarization in the classical double 3C 219
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经典双 3C 219 结构和极化的起源

DOI：
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发表时间：
1992
期刊：
影响因子：
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通讯作者：
M. Norman
M. Norman
中科院分区：
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文献类型：
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作者：
D. A. Clarke;A. Bridle;J. Burns;R. Perley;M. Norman

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本文用1.4″分辨率的定标阵VLA观测了经典双射电星系3C 219在1.4、1.5、1.7和4.9 GHz的光谱和偏振特性。像其他分辨率很好的射电星系一样，叶的扩展发射是连续的。第二种类型的双折射，空间上独立的总强度丝，被发现在源的去偏振分布。退极化丝与旋转测量中的强局部梯度有关，可能表明射电星系周围有一种clusional磁离子介质
Scaled-array VLA observations of the classical double radio galaxy 3C 219 at 1.4, 1.5, 1.7, and 4.9 GHz with 1.4″ resolution have been used to derive the spectral and polarimetric properties of the source. The extended emission of the lobes is filamentary, as in other well-resolved radio galaxies. A second type of filamentation, spatially independent of the total intensity filaments, is found in the depolarization distribution of the source. The depolarization filaments are associated with strong local gradients in the rotation measure and may indicate that a clumpy magnetoionic medium surrounds the radio galaxy