67 citations · 329 across the 18 of their papers we have counts for
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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…
Solar flare forecasting using morphological properties of sunspot groups
M. Falco, P. Costa, P. Romano
We describe a new tool developed for solar flare forecasting on the base of some sunspot group properties. Assuming that the flare frequency follows the Poisson statistics, this to…
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…
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…