| Presentation Title: | Energy release phenomena observed at high-resolution with GREGOR and IRIS |
| Author(s): | Salvo Guglielmino, Fabiana Ferrente, Serena Lezzi, Mariarita Murabito, Vincenzo Andretta, Daniele Spadaro, Ilaria Ermolli, Paolo Romano, Francesca Zuccarello |
Abstract:
We present observation of energy release events occurring in the solar atmosphere, observed during a 10-day observing campaign conducted in August 2023 at GREGOR telescope (1.5 m diameter, located on Tenerife island), using the High-resolution Fast Imager (HiFI) and GREGOR Infrared Spectrograph (GRIS) in spectropolarimetric mode. The campaign was also coordinated with IRIS and Hinode observations. IRIS carried out observations during the early morning hours (local time at GREGOR), acquiring medium dense rasters (0".32 slit) and simultaneous slit-jaw images.
Data analysis has been limited to specific dates so far. On August 5th, IRIS captured a footpoint of a C-class flare within the leading sunspot of the active region. The following day, August 6th, IRIS detected a small-scale reconnection event (consisting of a UV burst and surge ejection) within the moat region surrounding the leading sunspot. We have conducted an initial examination of the evolution of the latter event. Noteworthy, observations from GREGOR's HiFI exhibit analogous brightenings and ejections within the same area.