论文标题
Parsec尺度AGN无线电飞机及其两极分化平面的全球对齐
Global alignments of parsec-scale AGN radio jets and their polarization planes
论文作者
论文摘要
报告了许多关于存在大规模对齐平面的大规模比对的作品，以及无线电源结构轴的比对。但是，这两个主张及其解释仍然存在争议。我们第一次探索parsec尺度的喷气机对齐。此外，我们在不同的波长处使用档案极化数据，以比较喷气机的相对取向及其发射的极化平面。使用来自Astrogeo数据库的较长基线干涉法（VLBI）无线电图中的通量密度分布，我们确定了迄今为止最大的活性银河核（AGN）样品样本的PARSEC尺度射流方向。采用平行运输的方法和表征邻居之间喷射方向分散体的样本统计数据，我们测试了确定的喷气机是否显着排列。我们表明，样本中的parsec尺度喷气机并未显示出任何重要的全球一致性。此外，发现射流方向在不同频率下与极化平面方向弱相关。
A number of works reported on the existence of a large scale alignment of the polarization plane of extragalactic sources as well as the alignment of radio-sources structural axes. However, both claims and their interpretation remain controversial. For the first time we explore the parsec-scale jets alignments. Additionally, we use archival polarimetric data at different wavelengths in order to compare relative orientations of the jets and the polarization planes of their emission. Using the flux density distribution in very long baseline interferometry (VLBI) radio maps from the Astrogeo database, we determine the parsec-scale jet orientation for the largest sample of active galactic nuclei (AGN) to date. Employing the method of parallel transport and a sample statistics characterizing the jet orientation dispersion among neighbors, we test whether the identified jets are significantly aligned. We show that the parsec-scale jets in our sample do not demonstrate any significant global alignments. Moreover, the jet direction is found to be weakly correlated with the polarization plane direction at different frequencies.
