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arXiv 2111.06237astro-ph.GA
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活动星系核宽发射线的偏振

Polarization in broad emission lines of Active Galactic Nuclei

L. C. Popović, E. Shablovinskaya, Dj. Savić

摘要:

讨论了第1型活动星系核中宽发射线的偏振。偏振取决于宽线区域(BLR)的几何形状,并且还取决于偏振机制或散射材料的分布。因此,偏振测量可以指示BLR的几何形状和偏振机制(赤道或极散射)。此外,偏振角(PA)的形状可以用来测量超大质量黑洞(SMBH)的质量,并约束BLR特性。我们从理论和观测两个方面概述了我们和其他最近的研究极化在广泛的路线。

英文摘要:

We discuss the polarization of broad emission lines in the type 1 active galactic nuclei (AGNs). The polarization depends on the geometry of the broad line region (BLR), and also on the polarization mechanism, or distribution of the scattering material. Therefore the polarization measurements can indicate the geometry of the BLR and the mechanism of polarization (equatorial or polar scattering). In addition, the polarization angle (PA) shape across the line profile can be used to measure the supermassive black hole (SMBH) mass, and constrain the BLR characteristics. We give an overview of ours and other recent investigations of the polarization in broad lines from both aspects: theoretical and observational.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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