31 citations · 76 across the 7 of their papers we have counts for
8 papers
Restoring process of sunspot penumbra
P. Romano, M. Murabito, S. L. Guglielmino +2
We describe the disappearance of a sector of sunspot penumbra and its restoring process observed in the preceding sunspot of active region NOAA 12348. The evolution of the magnetic…
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…
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.
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…
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}}…