31 citations · 114 across the 12 of their papers we have counts for
13 papers
Analysis of full-disc H alpha observations: Carrington maps and filament properties in 1909-2022
Theodosios Chatzistergos, Ilaria Ermolli, Dipankar Banerjee +14
Full disc observations of the Sun in the H line provide information about the solar chromosphere and in particular about the filaments, which are dark and elongated features tha…
Observations of the chromospheric Evershed flow of sunspot penumbra
Paolo Romano, Francesco Schillirò, Mariachiara Falco
The sunspot penumbra is usually observed in the photosphere and it is of particular interest for its magneto-convection which seems to transport the heat from the top of the convec…
Quantifying Properties of Photospheric Magnetic Cancellations in the Quiet Sun Internetwork
Vincent E. Ledvina, Maria D. Kazachenko, Serena Criscuoli +7
We analyzed spectropolarimetric data from the Swedish 1-meter Solar Telescope to investigate physical properties of small-scale magnetic cancellations in the quiet Sun photosphere.…
On the evolution of a sub-C class flare: a showcase for the capabilities of the revamped Catania Solar Telescope
Paolo Romano, Salvo L. Guglielmino, Pierfrancesco Costa +9
Solar flares are occasionally responsible for severe Space Weather events, which can affect space-borne and ground-based infrastructures, endangering anthropic technological activi…
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}}…
Homologous white light solar flares driven by photosperic shear motions
P. Romano, A. Elmhamdi, M. Falco +4
We describe the peculiarity of two recurrent white light flares occurred on Sept. 06, 2017, in the super Active Region (SAR) NOAA 12673, with a time interval, between their peaks,…
Observation of a 3D magnetic null point
P. Romano, M. Falco, S. L. Guglielmino +1
We describe high resolution observations of a GOES B-class flare characterized by a circular ribbon at chromospheric level, corresponding to the network at photospheric level. We i…
Kinematics and Magnetic Properties of a Light Bridge in a Decaying Sunspot
M. Falco, J. M. Borrero, S. L. Guglielmino +7
We present the results obtained by analyzing high spatial and spectral resolution data of the solar photosphere acquired by the CRisp Imaging SpectroPolarimeter at the Swedish Sola…