在间隔观测中识别邻近恒星系统射电发射非平稳性影响的方法

Proceedings of The Multifaceted Universe: Theory and Observations - 2022 — PoS(MUTO2022) Pub Date : 2022-09-24 DOI:10.22323/1.425.0009

V. Chernenkov, G. Beskin

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引用次数: 0

摘要

我们描述了一种处理两个(以及更多)RT32射电望远镜产生的记录的方法，这些射电望远镜位于俄罗斯科学院应用天文学研究所(IAA RAS)的Badary和Zelenchukskaya天文台，在圆偏振接收模式下，具有波长为6.2和3.5 cm的宽带连续频谱接收器。该方法基于对Pearson相关系数的互相关矩阵的计算，其中水平元素为滑动时间窗口中同时组样本的系数，垂直变量为其宽度。我们在Python中实现了这个方法，PICASO (Pearson Image Correlation Array Stars Observing)，允许计算结果以灰度或伪彩色的三角形图像的形式显示。给出了TRAPPIST-1行星系统恒星和类星体3C147的处理观测实例。

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A method for Identifying the Effects of Nonstationarity in the Radio Emission from Nearby Stellar Systems in Spaced Observations

We describe a method for processing the records produced on two (as well as a larger number) RT32 radio telescopes at the Badary and Zelenchukskaya observatories of the Institute of Applied Astronomy of RAS (IAA RAS) with broadband continuous spectrum receivers at wavelengths of 6.2 and 3.5 cm in the circular polarization receiving mode. The method is based on the calculation of the cross-correlation matrix for the Pearson correlation coefficients, where the horizontal elements are the coefficients of the simultaneous groups of samples in a sliding time window, and the vertical variable is its width. Our software implementation of the method in Python, PICASO (Pearson Image Correlation Array Stars Observing), allows the result of the calculations to be displayed in the form of a triangular image of correlation levels in grayscale or in pseudocolor. The examples of processed observations for the star TRAPPIST-1 with a planetary system and the quasar 3C147 are presented.

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Proceedings of The Multifaceted Universe: Theory and Observations - 2022 — PoS(MUTO2022)

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