109 citations · 585 across the 39 of their papers we have counts for
42 papers
Velocity field of an Active Region filament from GRIS IR He I and IRIS UV observations
M. Murabito, V. Andretta, S. Parenti +4
Plasma flow measurements in solar active region filaments are rare, particularly in the infrared and ultraviolet ranges that probe the chromosphere and transition region. In additi…
Observations of the formation of a proto-spot in a pre-existing field environment
Mariarita Murabito, Ilaria Ermolli, Salvo L. Guglielmino +2
Bipolar emerging flux regions (EFRs) form active regions (ARs) that generally evolve in a pre-existing magnetic environment in the solar atmosphere. Reconfiguration of the small- a…
Metis Observations of Alfvénic Outflows Driven by Interchange Reconnection in a Pseudostreamer
P. Romano, P. Wyper, V. Andretta +33
This study presents observations of a large pseudostreamer solar eruption and, in particular, the post-eruption relaxation phase, as captured by Metis onboard the Solar Orbiter on…
Emergence of magnetic flux sheets in the quiet Sun. I. Statistical properties
S. M. Díaz-Castillo, C. E. Fischer, F. Moreno-Insertis +3
Small-scale magnetic flux emergence in the quiet Sun is crucial for maintaining solar magnetic activity. On the smallest scales studied so far, namely within individual granules, t…
Understanding the thermal and magnetic properties of a X-class flare in the low solar atmosphere
F. Ferrente, C. Quintero Noda, F. Zuccarello +1
We analyse the spatial distribution and vertical stratification of the physical parameters of the solar atmosphere when an X-class flare occurs. We made use of observations acquire…
Study of solar brightness profiles in the 18-26 GHz frequency range with INAF radio telescopes II. Evidence for coronal emission
M. Marongiu, A. Pellizzoni, S. Righini +43
One of the most important objectives of solar physics is the physical understanding of the solar atmosphere, the structure of which is also described in terms of the density (N) an…
Study of solar brightness profiles in the 18-26 GHz frequency range with INAF radio telescopes I: solar radius
M. Marongiu, A. Pellizzoni, S. Mulas +32
The Sun is an extraordinary workbench, from which several fundamental astronomical parameters can be measured with high precision. Among these parameters, the solar radius $R_{\odo…
Eruptive events with exceptionally bright emission in HI Ly-alpha observed by the Metis coronagraph
G. Russano, V. Andretta, Y. De Leo +29
Metis, the coronagraph on board Solar Orbiter, provides for the first time coronagraphic imaging in the ultraviolet HI Ly-alpha line and, simultaneously, in polarized visible light…
Coronal Heating Rate in the Slow Solar Wind
Daniele Telloni, Marco Romoli, Marco Velli +59
This Letter reports the first observational estimate of the heating rate in the slowly expanding solar corona. The analysis exploits the simultaneous remote and local observations…
Confinedness of an X3.1 class solar flare occurred in NOAA 12192: Analysis from multi-instruments observations
N. Vasantharaju, F. Zuccarello, F. Ferrente +1
The non-association of coronal mass ejections with high energetic flares is sparse. For this reason, the magnetic conditions required for the confinedness of major flares is a topi…
Solar observations with single-dish INAF radio telescopes: continuum imaging in the 18-26 GHz range
A. Pellizzoni, S. Righini, M. N. Iacolina +28
We present a new solar radio imaging system implemented through the upgrade of the large single-dish telescopes of the Italian National Institute for Astrophysics (INAF), not origi…
IBIS-A: The IBIS data Archive. High resolution observations of the solar photosphere and chromosphere with contextual data
Ilaria Ermolli, Fabrizio Giorgi, Mariarita Murabito +10
The IBIS data Archive (IBIS-A) stores data acquired with the Interferometric BIdimensional Spectropolarimeter (IBIS), which was operated at the Dunn Solar Telescope of the US Natio…
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…
Exploring the Solar Wind from its Source on the Corona into the Inner Heliosphere during the First Solar Orbiter - Parker Solar Probe Quadrature
Daniele Telloni, Vincenzo Andretta, Ester Antonucci +68
This Letter addresses the first Solar Orbiter (SO) -- Parker Solar Probe (PSP) quadrature, occurring on January 18, 2021, to investigate the evolution of solar wind from the extend…
Comparative case study of two methods to assess the eruptive potential of selected active regions
Francesca Zuccarello, Ilaria Ermolli, Marianna B. Korsos +4
Solar eruptive events, like flares and coronal mass ejections, are characterized by the rapid release of energy that can give rise to emission of radiation across the entire electr…
Solar surges related to UV bursts: Characterization through k-means, inversions and density diagnostics
D. Nóbrega Siverio, S. L. Guglielmino, A. Sainz Dalda
Surges are cool and dense ejections typically observed in chromospheric lines and closely related to other solar phenomena like UV bursts or coronal jets. Our aim is to address the…
Effects of the chromospheric Lyα line profile shape on the determination of the solar wind HI outflow velocity using the Doppler dimming technique
G. E. Capuano, S. Dolei, D. Spadaro +15
The determination of solar wind outflow velocity is fundamental in order to probe the mechanisms of wind acceleration in the corona. We aim to study, via the Doppler dimming techni…
Penumbral decay observed in active region NOAA 12585
M. Murabito, S. L. Guglielmino, I. Ermolli +3
The physical conditions leading the sunspot penumbra decay are poorly understood so far. We investigate the photospheric magnetic and velocity properties of a sunspot penumbra duri…
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…
On the Magnetic Nature of an Exploding Granule as Revealed by Sunrise/IMaX
S. L. Guglielmino, V. Martínez Pillet, B. Ruiz Cobo +5
We study the photospheric evolution of an exploding granule observed in the quiet Sun at high spatial () and temporal (31.5 s) resolution by the imaging magneto…
Spectro-Polarimetric Analysis of an Umbral Filament
S. L. Guglielmino, P. Romano, B. Ruiz Cobo +2
High-resolution observations of the solar photosphere have recently revealed the presence of elongated filamentary bright structures inside sunspot umbrae. These features, which ha…
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…