109 citations · 585 across the 39 of their papers we have counts for
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Penumbral brightening events observed in AR NOAA 12546
M. Murabito, S. L. Guglielmino, I. Ermolli +2
Penumbral transient brightening events have been attributed to magnetic reconnection episodes occurring in the low corona. We investigated the trigger mechanism of these events in…
Continuum enhancements, line profiles and magnetic field evolution during consecutive flares
Francesca Zuccarello, Salvo L. Guglielmino, Vincenzo Capparelli +5
During solar flares, magnetic energy can be converted into electromagnetic radiation from radio waves to rays. Enhancements in the continuum at visible wavelengths give rise to…
Properties of the Umbral Filament Observed in Active Region NOAA 12529
S. L. Guglielmino, P. Romano, B. Ruiz Cobo +2
Recent observations of the solar photosphere revealed the presence of elongated filamentary bright structures inside sunspot umbrae, called umbral filaments (UFs). These features d…
Historical solar Ca II K observations at the Rome and Catania observatories
Theodosios Chatzistergos, Ilaria Ermolli, Mariachiara Falco +5
Here we present the little explored Ca II K archives from the Rome and the Catania observatories and analyse the digitised images from these archives to derive plage areas.
Recent insights on the penumbra formation process
M. Murabito, P. Romano, F. Zuccarello +1
Using high-resolution spectropolarimetric data acquired by \textit{IBIS}, as well as \textit{SDO}/HMI observations, we studied the penumbra formation in AR NOAA 11490 and in a samp…
Continuum emission enhancements and penumbral changes observed during flares by IRIS, ROSA, and Hinode
F. Zuccarello, S. L. Guglielmino, V. Capparelli +6
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 oc…
Satellite observations of reconnection between emerging and pre-existing small-scale magnetic fields
S. L. Guglielmino, F. Zuccarello, P. R. Young +2
We report multi-wavelength ultraviolet observations taken with the IRIS satellite, concerning the emergence phase in the upper chromosphere and transition region of an emerging flu…
Long-term optical monitoring of the solar atmosphere in Italy
S. L. Guglielmino, I. Ermolli, P. Romano +8
Probably, the long-term monitoring of the solar atmosphere started in Italy with the first telescopic observations of the Sun made by Galileo Galilei in the early $17^{\mathrm{th}}…