62 citations · 190 across the 16 of their papers we have counts for
16 papers
A novel approach to identify resonant MHD wave modes in solar pores and sunspot umbrae: analysis
M. Stangalini, D. B. Jess, G. Verth +12
The umbral regions of sunspots and pores in the solar photosphere are generally dominated by ~mHz oscillations, which are due to -modes penetrating the magnetic region. In th…
XAO-assisted coronagraphy with SHARK NIR: from simulations to laboratory tests
Gabriele Umbriaco, Elena Carolo, Daniele Vassallo +22
Several Extreme Adaptive Optics (XAO) systems dedicated to the detection and characterisation of the exoplanets are currently in operation for 8-10 meter class telescopes. Coronagr…
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}}…
Recurrence quantification analysis as a post-processing technique in adaptive optics high-contrast imaging
M. Stangalini, G. Li Causi, F. Pedichini +8
In this work we explore the possibility of using Recurrence Quantification Analysis (RQA) in astronomical high-contrast imaging to statistically discriminate the signal of faint ob…
Speckle statistics in adaptive optics images at visible wavelengths
Marco Stangalini, Fernando Pedichini, Enrico Pinna +11
Residual speckles in adaptive optics (AO) images represent a well-known limitation on the achievement of the contrast needed for faint source detection. Speckles in AO imagery can…
Data processing on simulated data for SHARK-NIR
E. Carolo, D. Vassallo, J. Farinato +22
A robust post processing technique is mandatory to analyse the coronagraphic high contrast imaging data. Angular Differential Imaging (ADI) and Principal Component Analysis (PCA) a…
A virtual coronagraphic test bench for SHARK-NIR, the second-generation high contrast imager for the Large Binocular Telescope
D. Vassallo, E. Carolo, J. Farinato +21
In this article, we present a simulator conceived for the conceptual study of an AO-fed high-contrast coronagraphic imager. The simulator implements physical optics: a complex dist…
SHARK-NIR, the coronagraphic camera for LBT, moving toward construction
Jacopo Farinato, Francesca Bacciotti, Carlo Baffa +37
SHARK-NIR is one of the two coronagraphic instruments proposed for the Large Binocular Telescope. Together with SHARK-VIS (performing coronagraphic imaging in the visible domain),…
Recurrence Quantification Analysis of Two Solar Cycle Indices
M. Stangalini, I. Ermolli, G. Consolini +1
Solar activity affects the whole heliosphere and near-Earth space environment. It has been reported in the literature that the mechanism responsible for the solar activity modulati…
High Contrast Imaging in the Visible: First Experimental Results at the Large Binocular Telescope
F. Pedichini, M. Stangalini, A. Ambrosino +13
In February 2014, the SHARK-VIS (System for High contrast And coronography from R to K at VISual bands) Forerunner, a high contrast experimental imager operating at visible wavelen…
Diffusion of magnetic elements in a supergranular cell
F. Giannattasio, M. Stangalini, F. Berrilli +2
Small scale magnetic fields (magnetic elements) are ubiquitous in the solar photosphere. Their interaction can provide energy to the upper atmospheric layers, and contribute to hea…
On the asymmetry of velocity oscillation amplitude in bipolar active regions
F. Giannattasio, M. Stangalini, D. Del Moro +1
The velocity field in the lower solar atmosphere undergoes strong interactions with magnetic fields. Many authors have pointed out that power is reduced by a factor between two and…
Three-minute wave enhancement in the solar photosphere
M. Stangalini, F. Giannattasio, D. Del Moro +1
It is a well-known result that the power of five-minute oscillations is progressively reduced by magnetic fields in the solar photosphere. Many authors have pointed out that this f…
MHD wave transmission in the Sun's atmosphere
M. Stangalini, D. Del Moro, F. Berrilli +1
MHD wave propagation inside the Sun's atmosphere is closely related to the magnetic field topology. For example, magnetic fields are able to lower the cutoff frequency for acoustic…
Multiple field-of-view MCAO for a Large Solar Telescope: LOST simulations
Marco Stangalini, Francesco Berrilli, Dario Del Moro +1
In the framework of a 4m class Solar Telescope we studied the performance of the MCAO using the LOST simulation package. In particular, in this work we focus on two different metho…
MCAO for the European Solar Telescope: first results
M. Stangalini, R. Piazzesi, D. Del Moro +1
We analise the efficiency of wavefront reconstruction in the MultiConjugate Adaptive Optics system for the European Solar Telescope (EST). We present preliminary results derived fr…