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The Triggering of the 2014 March 29 Filament Eruption

Magnus M. Woods, Satoshi Inoue, Louise K. Harra, Sarah A. Matthews, Kanya Kusano, Nadine M. E. Kalmoni
2018 Astrophysical Journal  
The X1 flare and associated filament eruption occurring in NOAA Active Region 12017 on SOL2014-03-29 has been the source of intense study. In this work, we analyse the results of a series of non linear force free field extrapolations of the pre and post flare period of the flare. In combination with observational data provided by the IRIS, Hinode and SDO missions, we have confirmed the existence of two flux ropes present within the active region prior to flaring. Of these two flux ropes, we
more » ... flux ropes, we find that intriguingly only one erupts during the X1 flare. We propose that the reason for this is due to tether cutting reconnection allowing one of the flux ropes to rise to a torus unstable region prior to flaring, thus allowing it to erupt during the subsequent flare.
doi:10.3847/1538-4357/aac5e1 fatcat:flrkryz6pbc73e4wu2sishj6hi