An eruptive complex solar flare and the events in its aftermath

FRANCILE, C.N.; GULISANO, A.M.; MANDRINI, C.H.; MANDRINI, C.H.; LUONI, M.L.; CREMADES, H.; LUONI, M.L.; CREMADES, H.; FRANCILE, C.N.; GULISANO, A.M.

Simposio; IAU Symposium 327, Fine structure and dynamics of the solar atmosphere; 2016

We present a study of the M6.6 flare that occurred on 13 February 2011 in AR 11158. This AR waslocated at the disk center (S20E04) seen from Earth. The flare was accompanied by a CME. We analyzedthe CME evolution from the Sun to 1 AU. The AR began emerging in the eastern hemisphere 10 Februaryand was formed by two major bipoles that created a complex multipolar region. Flux emergence andshearing motions built up a sigmoidal coronal structure with a direct S-shaped sigmoidal in the subsequentdays. We use wavelength observations from the photosphere to the interplanetary medium to analyze themagnetic field, model coronal loops and EUV wave, compute the AR magnetic helicity and compare it tothat of the magnetic cloud associated with the ejection.