搜索类星体偏振位置角旋转的方法

IF 1.3 4区物理与天体物理 Q3 ASTRONOMY & ASTROPHYSICS

Astrophysical Bulletin Pub Date : 2024-07-31 DOI:10.1134/S1990341323600394

S. S. Savchenko, D. A. Morozova, S. G. Jorstad, D. A. Blinov, G. A. Borman, A. A. Vasilyev, T. S. Grishina, A. V. Zhovtan, E. N. Kopatskaya, E. G. Larionova, I. S. Troitskiy, Yu. V. Troitskaya, E. V. Shishkina, E. A. Shkodkina

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引用次数: 0

摘要

摘要对类星体的观测表明，来自类星体的辐射的偏振位置角会随着时间的推移而发生很大变化，其中包括被称为旋转的时期，在此期间，偏振位置角会发生有序的变化。本研究提出了一种方法来识别这类事件并评估其统计意义。研究以对 CTA 102、3C 454.3 和 OT 081 等类星体的长期偏振观测为例，演示了该方法的操作。在对光曲线进行分析的过程中，发现了 51 次偏振位置角的旋转，结果表明，对于 CTA 102 和 3C 454.3 而言，旋转主要集中在一个方向上。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

The Method of Searching for Rotations of the Polarization Position Angle of Quasars

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The Method of Searching for Rotations of the Polarization Position Angle of Quasars

Observations of quasars show that the polarization position angle of the emission coming from them varies greatly over time, including periods called rotations during which the angle changes in an orderly manner. The study proposes a method for identifying such events and assessing their statistical significance. The operation of the method is demonstrated using the example of long-term polarimetric observations of the blazars CTA 102, 3C 454.3, and OT 081. During the analysis of light curves, 51 rotations of the polarization position angle were found and it was shown that for CTA 102 and 3C 454.3 the rotations are predominantly oriented in one direction.

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来源期刊

Astrophysical Bulletin 地学天文-天文与天体物理

CiteScore

2.00

自引率

33.30%

发文量

审稿时长

>12 weeks

期刊介绍： Astrophysical Bulletin is an international peer reviewed journal that publishes the results of original research in various areas of modern astronomy and astrophysics, including observational and theoretical astrophysics, physics of the Sun, radio astronomy, stellar astronomy, extragalactic astronomy, cosmology, and astronomy methods and instrumentation.