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arXiv · 1602.08693

Peculiar Stationary EUV Wave Fronts in the eruption on 2011 May 11

R. Chandra·P. F. Chen·A. Fulara·A. K. Srivastava·W. Uddin
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Abstract

We present and interpret the observations of extreme ultraviolet (EUV) waves associated with a filament eruption on 2011 May 11.The filament eruption also produces a small B-class two ribbon flare and a coronal mass ejection (CME). The event is observed by the Solar Dynamic Observatory (SDO) with high spatio-temporal resolution data recorded by Atmospheric Imaging Assembly (AIA). As the filament erupts, we observe two types of EUV waves (slow and fast) propagating outwards. The faster EUV wave has a propagation velocity of ~ 500 km/s and the slower EUV wave has an initial velocity of ~ 120 km/s. We report for the first time that not only the slower EUV wave stops at a magnetic separatrix to form bright stationary fronts, but also the faster EUV wave transits a magnetic separatrix, leaving another stationary EUV front behind.

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R. Chandra, P. F. Chen, A. Fulara, A. K. Srivastava, W. Uddin. 2016-02-28. Peculiar Stationary EUV Wave Fronts in the eruption on 2011 May 11. https://doi.org/10.3847/0004-637x/822/2/106

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