Rotation measures for compact variable radio sources
Rotation measures for compact variable radio sources
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紧凑型可变无线电源的旋转测量
DOI：
10.1086/113337
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发表时间：
1983
期刊：
影响因子：
--
通讯作者：
T. Jones
中科院分区：
文献类型：
--
作者：
L. Rudnick;T. Jones
我们利用在波长18厘米和波长20.5厘米的甚大阵列观测，得到了31个致密可变河外源的自转测量结果。还给出了这些光源和另外29个波长为6厘米和2厘米的光源的偏振和总强度数据。对于具有令人困惑的扩展结构的源，也提供了地图。计算的旋转度量值的分布类似于扩展源的分布，并且在大约7年内似乎没有变化(使用Wardle 1977年的数据)。结果表明，在较大的波长间隔下，致密光源的本征偏振位置角是相似的。我们简要地讨论了紧凑源内部和周围磁场的含义。
We have derived rotation measures for 31 compact variable extragalactic sources using Very Large Array observations at lambda 18 cm and lambda 20.5 cm. Polarization and total intensity data are presented for these and 29 additional sources at lambda6 cm and lambda2 cm, as well. Maps are also presented for sources with confusing extended structure. The calculated rotation measures are distributed similarly to those of extended sources, and do not appear to change over approx.7 years (using data from Wardle 1977). The intrinsic polarization position angles of compact sources are shown to be similar over wide separations in wavelength. We briefly discuss the implications for the magnetic fields in and around compact sources.