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首页> 外文期刊>The Astrophysical Journal. Letters >Fine-scale structures of flux ropes tracked by erupting material
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Fine-scale structures of flux ropes tracked by erupting material

机译：通过喷发材料跟踪的磁通绳的细尺结构

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摘要

We present Solar Dynamics Observatory observations of two flux ropes tracked out by material from a surge and a failed filament eruption on 2012 July 29 and August 4, respectively. For the first event, the interaction between the erupting surge and a loop-shaped filament in the east seems to "peel off" the filament and add bright mass into the flux rope body. The second event is associated with a C-class flare that occurs several minutes before the filament activation. The two flux ropes are, respectively, composed of 85 ± 12 and 102 ± 15 fine-scale structures, with an average width of about 1.″6. Our observations show that two extreme ends of the flux rope are rooted in opposite polarity fields and each end is composed of multiple footpoints (FPs) of fine-scale structures. The FPs of the fine-scale structures are located at network magnetic fields, with magnetic fluxes from 5.6 × 10~(18) Mx to 8.6 × 10~(19) Mx. Moreover, almost half of the FPs show converging motion of smaller magnetic structures over 10 hr before the appearance of the flux rope. By calculating the magnetic fields of the FPs, we deduce that the two flux ropes occupy at least 4.3 × 10~(20) Mx and 7.6 × 10~(20) Mx magnetic fluxes, respectively.
机译：我们提出了通过来自2012年7月29日和8月4日的浪涌和失败的长丝爆发出来的材料跟踪的两种磁通绳的太阳能动力学观测。对于第一次事件，东部爆发浪涌和环形灯丝之间的相互作用似乎“剥离”灯丝并将亮块添加到焊剂绳体中。第二个事件与C级耀斑相关联，在灯丝激活前几分钟发生。两个磁通绳划分别由85±12和102±15微尺度结构组成，平均宽度为约1.“6。我们的观察结果表明，磁通绳的两个极端末端源于极性场，每个端部由微尺度结构的多种脚踏点（FPS）组成。细尺结构的FPS位于网络磁场，磁通量为5.6×10〜（18）MX至8.6×10〜（19）MX。此外，在通量绳索的外观之前，几乎一半的FPS显示了较小磁性结构的较小磁性结构的会聚运动。通过计算FPS的磁场，我们推导出两个磁通绳索分别占用至少4.3×10〜（20）MX和7.6×10〜（20）MX磁通量。

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