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Continuum emission enhancements and penumbral changes observed during flares by IRIS, ROSA, and Hinode

Fletcher, L.; Mathioudakis, M.; Guglielmino, S. L. +6 more

In this paper we describe observations acquired by satellite instruments ( Hinode/SOT and IRIS) and ground-based telescopes (ROSA@DST) during two consecutive C7.0 and X1.6 flares occurred in active region NOAA 12205 on 2014 November 7. The analysis of these data show the presence of continuum enhancements during the evolution of the events, observ…