L. Sorriso‐Valvo
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View article: Higher-order Analysis of Three-dimensional Anisotropy in Imbalanced Alfvénic Turbulence
Higher-order Analysis of Three-dimensional Anisotropy in Imbalanced Alfvénic Turbulence Open
We examine the applicability of homogeneous, negligible cross-helicity magnetohydrodynamic (MHD) turbulence models incorporating “critical balance” (CB) and “scale-dependent dynamic alignment” (SDDA) to Parker Solar Probe observations of a…
View article: Energy conversion pathways inside Kelvin-Helmholtz vortices
Energy conversion pathways inside Kelvin-Helmholtz vortices Open
View article: Compressive Plasma Turbulence at Comet 67P
Compressive Plasma Turbulence at Comet 67P Open
The ionospheres of comets are complex systems, where dynamic phenomena such as plasma instabilities and turbulence commonly occur as a consequence of the coupling processes between solar wind and cometary plasma. The analysis of fluctuatio…
View article: General properties of the magnetosheath: the MMS unbiased campaign
General properties of the magnetosheath: the MMS unbiased campaign Open
View article: Evolution of Solar Wind Turbulence during Radial Alignment of Parker Solar Probe and Solar Orbiter in 2022 December
Evolution of Solar Wind Turbulence during Radial Alignment of Parker Solar Probe and Solar Orbiter in 2022 December Open
We investigate the radial evolution of solar wind turbulence during the radial alignment of Parker Solar Probe (PSP) and Solar Orbiter (SO) on 2022 December 10, with PSP located at approximately 0.11 au and SO near 0.88 au. To identify nea…
View article: A new scenario with two subranges in the inertial regime of solar wind turbulence
A new scenario with two subranges in the inertial regime of solar wind turbulence Open
Context. The solar wind provides a natural laboratory for plasma turbulence. The core problem is the energy cascade process in the inertial range, which has been a fundamental long-standing question. Much effort has been put into theoretic…
View article: Emergence of Two Inertial Subranges in Solar Wind Turbulence: Dependence on Heliospheric Distance and Solar Activity
Emergence of Two Inertial Subranges in Solar Wind Turbulence: Dependence on Heliospheric Distance and Solar Activity Open
The solar wind is highly turbulent, and intermittency effects are observed for fluctuations within the inertial range. By analyzing magnetic field spectra and fourth-order moments, we perform a comparative study of turbulence and intermitt…
View article: Cross-scale turbulence in space plasmas: old concepts, recent findings, and future challenges
Cross-scale turbulence in space plasmas: old concepts, recent findings, and future challenges Open
Turbulence, a fascinating and intricate phenomenon, has captivated scientists over different domains, mainly for its complex cross-scale nature spanning a wide range of temporal and spatial scales. Despite significant advances in theories …
View article: On Alfvénic turbulence of solar wind streams observed by Solar Orbiter during March 2022 perihelion and their source regions
On Alfvénic turbulence of solar wind streams observed by Solar Orbiter during March 2022 perihelion and their source regions Open
Context. It has been recently accepted that the standard classification of the solar wind solely according to flow speed is outdated, and particular interest has been devoted to the study of the origin and evolution of so-called Alfvénic s…
View article: Temperature anisotropy instabilities driven by intermittent velocity shears in the solar wind
Temperature anisotropy instabilities driven by intermittent velocity shears in the solar wind Open
Where and under what conditions the transfer of energy between electromagnetic fields and particles takes place in the solar wind remains an open question. We investigate the conditions that promote the growth of kinetic instabilities pred…
View article: Extent of the Magnetotail of Venus From the Solar Orbiter, Parker Solar Probe and BepiColombo Flybys
Extent of the Magnetotail of Venus From the Solar Orbiter, Parker Solar Probe and BepiColombo Flybys Open
We analyze data from multiple flybys by the Solar Orbiter, BepiColombo, and Parker Solar Probe (PSP) missions to study the interaction between Venus' plasma environment and the solar wind forming the induced magnetosphere. Through examinat…
View article: Temperature anisotropy instabilities driven by intermittent velocity shears in the solar wind
Temperature anisotropy instabilities driven by intermittent velocity shears in the solar wind Open
Where and under what conditions the transfer of energy between electromagnetic fields and particles takes place in the solar wind remains an open question. We investigate the conditions that promote the growth of kinetic instabilities pred…
View article: Metis Observation of the Onset of Fully Developed Turbulence in the Solar Corona
Metis Observation of the Onset of Fully Developed Turbulence in the Solar Corona Open
This Letter reports the first observation of the onset of fully developed turbulence in the solar corona. Long time series of white-light coronal images, acquired by Metis aboard Solar Orbiter at 2 minutes cadence and spanning about 10 hr,…
View article: Turbulence in space plasmas: analysis of observations and theoretical mode
Turbulence in space plasmas: analysis of observations and theoretical mode Open
View article: Emergence of two inertial sub-ranges in solar wind turbulence: dependence on heliospheric distance and solar activity
Emergence of two inertial sub-ranges in solar wind turbulence: dependence on heliospheric distance and solar activity Open
The solar wind is highly turbulent, and intermittency effects are observed for fluctuations within the inertial range. By analyzing magnetic field spectra and fourth-order moments, we perform a comparative study of turbulence and intermitt…
View article: Comparative Study of the Kinetic Properties of Proton and Alpha Beams in the Alfvénic Wind Observed by SWA-PAS On Board Solar Orbiter
Comparative Study of the Kinetic Properties of Proton and Alpha Beams in the Alfvénic Wind Observed by SWA-PAS On Board Solar Orbiter Open
The problems of heating and acceleration of solar wind particles are of significant and enduring interest in astrophysics. The interactions between waves and particles are crucial in determining the distributions of proton and alpha partic…
View article: Anisotropy of Magnetohydrodynamic and Kinetic Scale Fluctuations through Correlation Tensor in Solar Wind at 0.8 au
Anisotropy of Magnetohydrodynamic and Kinetic Scale Fluctuations through Correlation Tensor in Solar Wind at 0.8 au Open
Space plasma turbulence is inherently characterized by anisotropic fluctuations. The generalized k-th order correlation tensor of magnetic field increments allow us to separate the mixed isotropic and anisotropic structure functions from t…
View article: Connecting Solar Wind Velocity Spikes Measured by Solar Orbiter and Coronal Brightenings Observed by SDO
Connecting Solar Wind Velocity Spikes Measured by Solar Orbiter and Coronal Brightenings Observed by SDO Open
The Parker Solar Probe's discovery that magnetic switchbacks and velocity spikes in the young solar wind are abundant has prompted intensive research into their origin(s) and formation mechanism(s) in the solar atmosphere. Recent studies, …
View article: Evolution of the magnetic field rotation distributions in the inner heliosphere
Evolution of the magnetic field rotation distributions in the inner heliosphere Open
Context. The nature and evolution of the solar wind magnetic field rotations is studied in data from the Parker Solar Probe. Aims. We investigated the magnetic field deflections in the inner heliosphere below 0.5 au in a distance- and scal…
View article: Higher-Order Analysis of Three-Dimensional Anisotropy in Imbalanced Alfvénic Turbulence
Higher-Order Analysis of Three-Dimensional Anisotropy in Imbalanced Alfvénic Turbulence Open
We analyze in-situ observations of imbalanced solar wind turbulence to evaluate MHD turbulence models grounded in "Critical Balance" (CB) and "Scale-Dependent Dynamic Alignment" (SDDA). At energy injection scales, both outgoing and ingoing…
View article: Turbulence and particle energization in twisted flux ropes under solar-wind conditions
Turbulence and particle energization in twisted flux ropes under solar-wind conditions Open
Context. The mechanisms regulating the transport and energization of charged particles in space and astrophysical plasmas are still debated. Plasma turbulence is known to be a powerful particle accelerator. Large-scale structures, includin…
View article: An unbiased view of the contributions to turbulence cascade in Earth's magnetosheath.
An unbiased view of the contributions to turbulence cascade in Earth's magnetosheath. Open
Earth's magnetosheath is a medium where plasma parameters can take a wide range of values and where plasma fluid properties can vary greatly, depending on the distance to the bow shock and the upstream solar wind conditions. Plasma turbule…
View article: Comprehensive analysis of CME-driven shocks observed by multi-spacecraft observations
Comprehensive analysis of CME-driven shocks observed by multi-spacecraft observations Open
In this study, we aim at analyzing coronal mass ejection (CME)-driven shocks, possibly observed by a constellation of satellites, at the solar source and in the inner heliosphere. We started with the analysis of the CME detected by STEREO-…
View article: Energy transfer in the Solar Wind: The interplay between turbulence and kinetic instabilities.
Energy transfer in the Solar Wind: The interplay between turbulence and kinetic instabilities. Open
Precisely how and where energy transfer between scales in the Solar Wind takes place remains an open question. We use the occurrence of conditions predicted by linear theory to promote the growth of kinetic instabilities, to infer how turb…
View article: Kinetic properties of proton and alpha beams in the Alfvénic wind observed by Solar Orbiter-PAS 
Kinetic properties of proton and alpha beams in the Alfvénic wind observed by Solar Orbiter-PAS  Open
Ion velocity distribution functions in solar wind are often found to be non-Maxwellian. Streams of accelerated particles and temperature anisotropies are typical non-thermal features, whose origin is debated since the early years of in sit…
View article: Turbulence in Magnetic Reconnection Jets from Injection to Sub-Ion Scales
Turbulence in Magnetic Reconnection Jets from Injection to Sub-Ion Scales Open
We investigate turbulence in magnetic reconnection jets in the Earth’s magnetotail using data from the Magnetospheric Multiscale spacecraft. We show that signatures of a limited inertial range are observed in many reconnection jets. The ob…
View article: Refined Modeling of Geoeffective Fast Halo CMEs During Solar Cycle 24
Refined Modeling of Geoeffective Fast Halo CMEs During Solar Cycle 24 Open
The propagation of geoeffective fast halo coronal mass ejections (CMEs) from solar cycle 24 has been investigated using the European Heliospheric Forecasting Information Asset (EUHFORIA), ENLIL, Drag‐Based Model (DBM) and Effective Acceler…
View article: Turbulence and particle energization in twisted flux ropes in solar-wind conditions
Turbulence and particle energization in twisted flux ropes in solar-wind conditions Open
Context. The mechanisms regulating the transport and energization of charged particles in space and astrophysical plasmas are still debated. Plasma turbulence is known to be a powerful particle accelerator. Large-scale structures, includin…
View article: Three-dimensional modelling of the shock–turbulence interaction
Three-dimensional modelling of the shock–turbulence interaction Open
The complex interaction between shocks and plasma turbulence is extremely important to address crucial features of energy conversion in a broad range of astrophysical systems. We study the interaction between a supercritical, perpendicular…
View article: Exploring Turbulence from the Sun to the Local Interstellar Medium
Exploring Turbulence from the Sun to the Local Interstellar Medium Open