2004年12月30日AR10715的日冕物质抛射

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

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引用次数: 0

摘要

日冕物质抛射（CME）于2004年12月30日10:57 UT开始，初始速度为1250 km/s，已经使用多波长数据进行了研究。EUV和射电H-alpha图像在识别多重重连接中起着重要作用。在活跃区（AR10715）的北部和南部发生的重联导致了C1.3和M2.2耀斑。南部的拱廊系统扩展并与上覆的磁场线重新连接，导致快速，广泛的日冕物质抛射。因此，我们的多波长分析提供了证据，证明内部重连，然后是外部重连，导致了10:50 UT的大规模喷发。无线电签名也支持这种场景。

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A coronal mass ejection from AR10715 on December 30, 2004

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

期刊介绍： Astrophysics and Space Science publishes original contributions and invited reviews covering the entire range of astronomy, astrophysics, astrophysical cosmology, planetary and space science and the astrophysical aspects of astrobiology. This includes both observational and theoretical research, the techniques of astronomical instrumentation and data analysis and astronomical space instrumentation. We particularly welcome papers in the general fields of high-energy astrophysics, astrophysical and astrochemical studies of the interstellar medium including star formation, planetary astrophysics, the formation and evolution of galaxies and the evolution of large scale structure in the Universe. Papers in mathematical physics or in general relativity which do not establish clear astrophysical applications will no longer be considered. The journal also publishes topically selected special issues in research fields of particular scientific interest. These consist of both invited reviews and original research papers. Conference proceedings will not be considered. All papers published in the journal are subject to thorough and strict peer-reviewing. Astrophysics and Space Science features short publication times after acceptance and colour printing free of charge.