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arXiv 0903.0236astro-ph.SR
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2003年11月20日耀斑事件的多波长观测

Multi-Wavelength View of Flare Events on November 20, 2003

P. Kumar, P. K. Manoharan, W. Uddin

摘要:

分析了2003年11月20日发生在活动区NOAA 501的两次耀斑事件. H-α和磁图测量表明,两个灯丝之间的相互作用产生了一个缓慢上升的耀斑事件,对应于两个阶段的磁重联。两个太阳黑子系统之间的相对顺时针旋转导致了暗条的不稳定。第二次耀斑主相的尖状磁场及其演化与带状分离的关系为CME爆发的成因提供了证据。IPS图像显示了CME相对于黄道面的传播和定向。

英文摘要:

We analyze two flare events which occurred in active region NOAA 501 on November 20, 2003. The H-alpha and magnetogram measurements show interaction between two filaments which produced a slowly rising flare event, corresponding to two stages of magnetic reconnection. The relative clockwise rotation between the two sunspot systems caused filament destabilization. The cusp-shaped magnetic field in the main phase of the second flare and its evolution in correlation with ribbon separation provide evidence for the cause of the CME eruption. The propagation and orientation of the CME with respect to the ecliptic plane is illustrated by IPS images.

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