Magnetic Field Re-configuration Associated With a Slow Rise Eruptive X1.2 Flare in NOAA Active Region 11944

Using multi-wavelength observations, we analysed magnetic field variations associated with a gradual X1.2 flare that erupted on January 7, 2014 in active region (AR) NOAA 11944 located near the disk center. A fast coronal mass ejection (CME) was observed following flare, which noticeably deflected south-west direction. chromospheric filament at eruption site prior to and after flare. We used SDO/HMI data perform non-linear force-free extrapolation of fields above AR study evolution eruption. The extrapolated allowed us detect signatures several flux ropes present hours before event. under slanted sunspot varying decay index 1.0-1.5. That might have caused erupting slide along this boundary rather than vertically erupt, thus explaining slow rise as well direction resulting CME. employed sign-singularity tools quantify evolutionary changes model twist current helicity data, found rapid coordinated systems both sets event their exhaustion onset.