Tracking a long duration active region: flux evolution and ejective aspects

L. MERENDA; CREMADES, H.; MANDRINI, C.H.; LÓPEZ FUENTES, M.C.; LÓPEZ, FERNANDO M.; POISSON, M.; CABELLO, I.

Conferencia; XI Conferencia Latinoamericana de Geofísica Espacial (XI COLAGE); 2018

Coronal Mass Ejections (CMEs) hold the number one place in threats toEarth due to their high capability of perturbing the fragile equilibrium oftechnology. Despite the fact that many CME triggering mechanisms have beenproposed, space weather forecasts are so far not able to predict when a CMEwill take place in an active region. To improve our knowledge in this respect,we investigate a long-duration active region (AR) throughout its life, alongfive solar rotations between July and November in 2010, with regard to itsejective productivity and flux evolution. We benefit from the wealth of solar remote-sensing datawith improved temporal, spatial, and spectral resolution provided by theground-breaking space missions STEREO, SDO, and SOHO. The ejective aspect couldbe uninterruptedly tracked along the entire life of the AR, because the STEREOspacecraft were in a quadrature position with respect to the SDO and SOHOmissions, providing multi-viewpoint coronagraphic images . Flux evolution wasinvestigated by means of SDO/HMI data, only possible when the AR was on thefront side of the Sun. The ultimate goal of this work in progress is toidentify common patterns in the ejective aspect that can be connected with theactive region characteristics.