Scholarlink

Abstract <p>The stability of spatial periodization of primary energy release regions in solar flares is studied based on extreme ultraviolet observations by the TRACE spacecraft. Fourier analysis of difference images shows the presence of several harmonics in the spatial distribution of energy release regions of the November 4, 2003 flare. Characteristic spatial periods lie in the range from 3 to 18 Mm. According to modern concepts, such periodization can be the result of the decay of the preflare current sheet, accumulating solar flare energy in coronal magnetic fields, due to some instability, for example, of a thermal nature. On the contrary, the periodization of the Bastille Day flare on July 14, 2000, being on the same spatial scales, did not demonstrate such stability.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Spatial Distribution of Energy Release in Solar Flares

  • 期刊论文

  • 发表日期：

    2025年12月1日

查看全文
  • L. S. Ledentsov

摘要

Abstract

The stability of spatial periodization of primary energy release regions in solar flares is studied based on extreme ultraviolet observations by the TRACE spacecraft. Fourier analysis of difference images shows the presence of several harmonics in the spatial distribution of energy release regions of the November 4, 2003 flare. Characteristic spatial periods lie in the range from 3 to 18 Mm. According to modern concepts, such periodization can be the result of the decay of the preflare current sheet, accumulating solar flare energy in coronal magnetic fields, due to some instability, for example, of a thermal nature. On the contrary, the periodization of the Bastille Day flare on July 14, 2000, being on the same spatial scales, did not demonstrate such stability.