费米- lat后翼太阳耀斑中的离子加速：日冕激波的作用

IF 2.4 3区物理与天体物理 Q2 ASTRONOMY & ASTROPHYSICS

Solar Physics Pub Date : 2025-08-19 DOI:10.1007/s11207-025-02522-z

Alexander Warmuth, Melissa Pesce-Rollins, Nicola Omodei, Song Tan

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引用次数: 0

摘要

本文研究了Fermi- lat9上的大面积望远镜测量到的伽玛射线发射与四个BTL太阳耀斑的日冕激波射电特征之间的关系。所有事件都与公制II型射电暴有关。射电爆发的开始和结束时间都与伽马射线发射同步。与BTL伽玛射线耀斑相关的II型爆发比普通样本的速度更快，形成高度更低。这些发现支持了一种观点，即产生BTL耀斑中伽马射线的高度相对论性离子在cme驱动的传播日冕激波中加速，而不是在大规模日冕环中加速。

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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Ion Acceleration in Fermi-LAT Behind-the-Limb Solar Flares: The Role of Coronal Shock Waves

We investigate the relationship between the gamma-ray emission measured with the Large Area Telescope on board Fermi (Fermi-LAT9 and radio signatures of coronal shock waves in four behind-the-limb (BTL) solar flares. All events were associated with metric type II radio bursts. Both start and end times of the radio bursts were synchronized with the gamma-ray emission. The type II bursts associated with the BTL gamma-ray flares had higher speeds and lower formation heights than those of an average sample. These findings support the notion that the highly relativistic ions that produce the gamma-rays in BTL flares are accelerated at CME-driven propagating coronal shock waves rather than in large-scale coronal loops.

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来源期刊

Solar Physics 地学天文-天文与天体物理

CiteScore

5.10

自引率

17.90%

发文量

146

审稿时长

1 months

期刊介绍： Solar Physics was founded in 1967 and is the principal journal for the publication of the results of fundamental research on the Sun. The journal treats all aspects of solar physics, ranging from the internal structure of the Sun and its evolution to the outer corona and solar wind in interplanetary space. Papers on solar-terrestrial physics and on stellar research are also published when their results have a direct bearing on our understanding of the Sun.