On Detection of Co-Rotating Regions of Interaction of Solar Wind Flows Based on Monitoring Data of Interplanetary Scintillation

IF 0.7 4区物理与天体物理 Q3 ASTRONOMY & ASTROPHYSICS

Astronomy Reports Pub Date : 2025-09-29 DOI:10.1134/S1063772925702051

V. R. Lukmanov, I. V. Chashei, S. A. Tyul’bashev, I. A. Subaev

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引用次数: 0

Abstract

A model for co-rotating interaction regions of multispeed solar wind flows including a region with a reduced level of small-scale turbulence in front of the compressed part has been proposed. This model is a development of the previously proposed model for the leading part of the interaction region. Dynamic two-dimensional maps of the distribution of the interplanetary scintillation level adapted to observations using the LPA LPI radio telescope have been calculated based on the model. As an example, an event related to a magnetic storm on April 16–17, 2024 has been considered. A comparison of model calculations with observational data, which confirmed the previously made assumption that the scintillation attenuation at night before the arrival of a disturbance to the Earth is associated with an area of reduced small-scale turbulence, has been carried out. In general, the qualitative model calculations are in good agreement with the observational data.

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基于行星际闪烁监测数据的太阳风相互作用同旋转区域探测

提出了一种多速度太阳风流共旋转相互作用区域的模型，该模型包括在被压缩部分前面有一个小尺度湍流减少的区域。该模型是对先前提出的用于交互区域主要部分的模型的发展。基于该模型计算了适合LPA LPI射电望远镜观测的行星际闪烁水平动态二维分布图。例如，2024年4月16日至17日与磁暴有关的事件已经被考虑过。模型计算与观测数据的比较证实了先前的假设，即在扰动到达地球之前的夜间闪烁衰减与小尺度湍流减少的区域有关。总体而言，定性模型计算结果与观测资料吻合较好。

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来源期刊

Astronomy Reports 地学天文-天文与天体物理

CiteScore

1.40

自引率

20.00%

发文量

审稿时长

6-12 weeks

期刊介绍： Astronomy Reports is an international peer reviewed journal that publishes original papers on astronomical topics, including theoretical and observational astrophysics, physics of the Sun, planetary astrophysics, radio astronomy, stellar astronomy, celestial mechanics, and astronomy methods and instrumentation.