Cyclic Variations in the Mean Recurrence Times of Solar Flares in Active Regions

IF 0.9 4区物理与天体物理 Q3 ASTRONOMY & ASTROPHYSICS

Astronomy Letters-A Journal of Astronomy and Space Astrophysics Pub Date : 2025-12-19 DOI:10.1134/S1063773725700409

Yu. A. Nagovitsyn, A. I. Larionova, A. A. Osipova

引用次数: 0

Abstract

The recurrence times RT (also known as waiting times) of solar flares in active regions in soft X-rays are studied using GOES satellite data from 1998 to 2025. It is shown that the RT distribution is fairly well approximated by a lognormal distribution. Based on grouped samples, changes in three types of average values of log RT distributions over time are studied. From these studies, it can be concluded that the average logarithms of recurrence times, regardless of the method of calculation, show variations similar to variations in sunspot numbers SSN; mean RT values vary between 110 and 280 min.

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太阳耀斑在活动区平均重现时间的周期变化

利用1998 ~ 2025年GOES卫星数据，研究了太阳耀斑在软x射线活跃区域的重现时间RT（也称为等待时间）。结果表明，RT分布可以很好地近似于对数正态分布。在分组样本的基础上，研究了三种类型的对数RT分布平均值随时间的变化。从这些研究中可以得出结论，无论采用何种计算方法，重复次数的平均对数都表现出类似于太阳黑子数SSN的变化；平均RT值在110 - 280分钟之间变化。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Astronomy Letters-A Journal of Astronomy and Space Astrophysics 地学天文-天文与天体物理

CiteScore

1.70

自引率

22.20%

发文量

审稿时长

6-12 weeks

期刊介绍： Astronomy Letters is an international peer reviewed journal that publishes the results of original research on all aspects of modern astronomy and astrophysics including high energy astrophysics, cosmology, space astronomy, theoretical astrophysics, radio astronomy, extragalactic astronomy, stellar astronomy, and investigation of the Solar system.