Roberto Lionello
Science Applications International Corporation
121 Papers
605 Citations
Roberto Lionello is an academic researcher from Science Applications International Corporation. The author has contributed to research in topics: Solar wind & Corona. The author has an hindex of 40, co-authored 111 publications. Previous affiliations of Roberto Lionello include University of Florence.
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Papers
Multispectral emission of the sun during the first whole sun month: magnetohydrodynamic simulations
TL;DR: In this paper, a three-dimensional magnetohydrodynamic (MHD) simulation of the corona was proposed to model its global plasma density and temperature structure with sufficient accuracy to reproduce many of the multispectral properties observed in extreme ultraviolet (EW) and X-ray emission.
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Magnetohydrodynamic modeling of the global solar corona
TL;DR: In this article, a three-dimensional magnetohydrodynamic model of the global solar corona is described, which uses observed photospheric magnetic fields as a boundary condition, and a version of the model with a polytropic energy equation is used to interpret solar observations, including eclipse images of the corona, Ulysses spacecraft measurements of the interplanetary magnetic field, and coronal hole boundaries from Kitt Peak He 10 830 A maps.
A Comparison between Global Solar Magnetohydrodynamic and Potential Field Source Surface Model Results
TL;DR: In this paper, the shape of the source surface as inferred from the magnetohydrodynamic (MHD) solutions was compared with PFSS solutions at different phases in the solar activity cycle.
345
A model for the sources of the slow solar wind
TL;DR: In this paper, the authors propose a model for the origin of the slow solar wind at the Sun that maps to a web of separatrices and quasi-separatrix layers in the heliosphere.
Flux cancellation and coronal mass ejections
TL;DR: In this paper, the authors proposed a time dependent magnetohydrodynamic computations of the flux cancellation mechanism and showed that flux cancellation in an energized two-and-one-half-dimensional helmet streamer configuration first leads to the formation of stable flux rope structures.
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