breakout/交换重联作为喷流、快速日冕物质抛射（CME）和太阳高能粒子（SEP）的驱动因素
Breakout/Interchange Reconnection as a driver of Jets, Fast CME, and Solar Energetic Particles
浏览论文内容
中文总结 AI 辅助
该研究通过多波段观测及原位测量，揭示 breakout 重联是驱动快速 CME、喷流及 SEP 事件的关键，为多尺度拓扑下的粒子加速释放提供了新见解。
中文摘要 AI 辅助
理解太阳爆发期间高能粒子如何从低日冕加速并释放到行星际介质中，对空间天气研究至关重要。本文呈现了一次太阳爆发的多波段观测结果，该结果表明 breakout 重联在驱动快速日冕物质抛射（CME）及相关太阳高能粒子（SEP）事件中发挥重要作用。极紫外和射电观测揭示了扇-顶拓扑结构内 breakout 重联的证据：预爆发开放场线形成后，暗条开始喷发，伴随准周期喷流、零中性点附近的相关下洄流，以及持续缓慢 breakout 重联期间的反复微弱 III 型射电暴；此外，观测还显示零中性点附近的缓慢 interchange 重联形成了预爆发日冕雨。在爆发性 breakout 重联期间，观测到大规模圆形 Ribbon、同时出现的四个硬 X 射线足点源及强烈 III 型射电暴，该过程使磁力线开放，让高能粒子逃逸至行星际空间。帕克太阳探测器（PSP）和风号探测器（Wind）的原位测量证实，电子束的快速注入与爆发性 breakout 重联的时间线一致。与喷发磁绳相关的快速激波在 interchange 重联期间对产生渐进型 SEP 事件起主要作用。这些观测凸显了 breakout 重联在产生快速 CME/激波及 SEP 释放与加速过程中的关键作用，结果对多尺度零中性点拓扑结构中粒子加速与释放过程具有更广泛意义，这类结构会产生从小尺度喷流到大尺度 CME 的连续爆发序列。
英文摘要
Understanding how energetic particles are accelerated and released from the low corona into the interplanetary medium during solar eruptions is crucial for space weather research. Here, we present multiwavelength observations of a solar eruption that are consistent with breakout reconnection playing an important role in driving a fast coronal mass ejection (CME) and the associated solar energetic particle (SEP) event. Extreme-ultraviolet and radio observations reveal evidence of breakout reconnection within a fan-spine topology. The filament eruption begins after the pre-eruption opening, accompanied by quasiperiodic jets and associated downflows near the null point, as well as recurrent faint Type III radio bursts during the ongoing slow breakout reconnection. Furthermore, the observations also reveal the formation of pre-eruption coronal rain via slow interchange reconnection near the null point. A large-scale circular ribbon, along with simultaneous four hard X-ray footpoint sources and intense Type III radio bursts, was observed during the explosive breakout reconnection that enabled opening of field lines and allowed energetic particles to escape into interplanetary space. In situ measurements by PSP and Wind confirm the prompt injection of electron beams consistent with the timing of the explosive breakout reconnection. A fast shock associated with the erupting flux rope during interchange reconnection played a major role in producing the gradual SEP event. These observations highlight the key role of breakout reconnection in producing a fast CME/shock with the SEP release and acceleration process. These results have broader implications for particle acceleration and release processes in multiscale null-point topologies, which produce a continuum of eruptions ranging from small-scale jets to large-scale CMEs.
