A coronal mass ejection from AR10715 on December 30, 2004

IF 1.8 4区物理与天体物理 Q3 ASTRONOMY & ASTROPHYSICS

Astrophysics and Space Science Pub Date : 2025-02-19 DOI:10.1007/s10509-025-04408-9

Mahalakshmi K

引用次数: 0

Abstract

The initiation of the Coronal Mass Ejection (CME) on 30 December 2004 at 10:57 UT, with an initial speed of 1250 km/s, has been studied using multiwavelength data. EUV and radio H-alpha images play a significant role in identifying multiple reconnections. The reconnection occurring in the northern and southern parts of Active Region (AR10715) led to C1.3 and M2.2 flares. The southern arcade system expands and reconnects with the overlying field lines, resulting in a fast, wide CME. Hence, our multiwavelength analysis provides evidence that internal reconnection, followed by external reconnection, causes large-scale eruption at 10:50 UT. Radio signatures also support this scenario.

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来源期刊

Astrophysics and Space Science 地学天文-天文与天体物理

CiteScore

3.40

自引率

5.30%

发文量

106

审稿时长

2-4 weeks

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