A. Greco
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View article: A VBz parameter study of the CME propagation with EUHFORIA: a perspective from the HENON mission.
A VBz parameter study of the CME propagation with EUHFORIA: a perspective from the HENON mission. Open
Space missions play a key role in predicting natural hazards like Coronal Mass Ejections (CMEs) and high fluxes of solar energetic particles that hit the Earth. In this work we carry out a preparatory study for the interpretation of the da…
View article: Measuring the turbulent energy cascade rate with multiple spacecraft
Measuring the turbulent energy cascade rate with multiple spacecraft Open
Exploration of space plasmas is entering a new era of multi-satellite constellation measurements that will determine fundamental properties of turbulence, with unprecedented precision. Familiar but imprecise approximations must be abandone…
View article: Deep Learning for Sea Surface Temperature Reconstruction under Cloud Occlusion
Deep Learning for Sea Surface Temperature Reconstruction under Cloud Occlusion Open
Sea Surface Temperature (SST) reconstructions from satellite images affected by cloud gaps have been extensively documented in the past three decades. Here we describe several Machine Learning models to fill the cloud-occluded areas starti…
View article: Three-dimensional energy transfer in space plasma turbulence from multipoint measurement
Three-dimensional energy transfer in space plasma turbulence from multipoint measurement Open
A novel multispacecraft technique applied to Magnetospheric Multiscale (MMS) mission data collected in the Earth's magnetosheath enables evaluation of the energy cascade rate solving the full Yaglom's equation in a turbulent space plasma. …
View article: Editorial: Generation-to-Generation Communications in space physics
Editorial: Generation-to-Generation Communications in space physics Open
EDITORIAL article Front. Astron. Space Sci., 11 May 2023Sec. Space Physics Volume 10 - 2023 | https://doi.org/10.3389/fspas.2023.1195579
View article: Multipoint Turbulence Analysis with HelioSwarm
Multipoint Turbulence Analysis with HelioSwarm Open
Exploration of plasma dynamics in space, including turbulence, is entering a new era of multisatellite constellation measurements that will determine fundamental properties with unprecedented precision. Familiar but imprecise approximation…
View article: Multipoint Turbulence Analysis with Helioswarm
Multipoint Turbulence Analysis with Helioswarm Open
Exploration of plasma dynamics in space, including turbulence, is entering a new era of multi-satellite constellation measurements that will determine fundamental properties with unprecedented precision. Familiar but imprecise approximatio…
View article: Magnetic Switchback Occurrence Rates in the Inner Heliosphere: Parker Solar Probe and 1 au
Magnetic Switchback Occurrence Rates in the Inner Heliosphere: Parker Solar Probe and 1 au Open
The subject of switchbacks, defined either as large angular deflections or polarity reversals of the magnetic field, has generated substantial interest in the space physics community since the launch of the Parker Solar Probe (PSP) in 2018…
View article: Magnetic Switchback Occurrence Rates in the Inner Heliosphere: Parker\n Solar Probe and 1 au
Magnetic Switchback Occurrence Rates in the Inner Heliosphere: Parker\n Solar Probe and 1 au Open
The subject of switchbacks, defined either as large angular deflections or\npolarity reversals of the magnetic field, has generated substantial interest in\nthe space physics community since the launch of Parker Solar Probe (PSP) in\n2018.…
View article: Parker Solar Probe observations of helical structures as boundaries for energetic particles
Parker Solar Probe observations of helical structures as boundaries for energetic particles Open
Energetic particle transport in the interplanetary medium is known to be affected by magnetic structures. It has been demonstrated for solar energetic particles in near-Earth orbit studies, and also for the more energetic cosmic rays. In t…
View article: Current Sheets, Plasmoids and Flux Ropes in the Heliosphere
Current Sheets, Plasmoids and Flux Ropes in the Heliosphere Open
Recent accumulation of a critical mass of observational material from different spacecraft complete with the enhanced abilities of numerical methods have led to a boom of studies revealing the high complexity of processes occurring in the …
View article: Flux tubes and energetic particles in Parker Solar Probe orbit 5: magnetic helicity - PVI method and ISOIS observations
Flux tubes and energetic particles in Parker Solar Probe orbit 5: magnetic helicity - PVI method and ISOIS observations Open
<p>Plasma turbulence can be viewed as a magnetic landscape populated by large- and small-scale coherent structures, consisting notionally of magnetic flux tubes and their boundaries. Such structures exist over a wide range of scales …
View article: In Situ Evidence of Ion Acceleration between Consecutive Reconnection Jet Fronts
In Situ Evidence of Ion Acceleration between Consecutive Reconnection Jet Fronts Open
Processes driven by unsteady reconnection can efficiently accelerate particles in many astrophysical plasmas. An example is the reconnection jet fronts in an outflow region. We present evidence of suprathermal ion acceleration between two …
View article: Current sheets, plasmoids and flux ropes in the heliosphere. Part II: Theoretical aspects
Current sheets, plasmoids and flux ropes in the heliosphere. Part II: Theoretical aspects Open
Our understanding of processes occurring in the heliosphere historically began with reduced dimensionality - one-dimensional (1D) and two-dimensional (2D) sketches and models, which aimed to illustrate views on large-scale structures in th…
View article: Current sheets, plasmoids and flux ropes in the heliosphere. Part II: Theoretical aspects
Current sheets, plasmoids and flux ropes in the heliosphere. Part II: Theoretical aspects Open
Our understanding of processes occurring in the heliosphere historically began with reduced dimensionality - one-dimensional (1D) and two-dimensional (2D) sketches and models, which aimed to illustrate views on large-scale structures in th…
View article: Identification of coherent structures in space plasmas: the magnetic helicity–PVI method
Identification of coherent structures in space plasmas: the magnetic helicity–PVI method Open
Context. Plasma turbulence can be viewed as a magnetic landscape populated by large- and small-scale coherent structures. In this complex network, large helical magnetic tubes might be separated by small-scale magnetic reconnection events …
View article: Editorial: Improving the Understanding of Kinetic Processes in Solar Wind and Magnetosphere: From CLUSTER to Magnetospheric Multiscale Mission
Editorial: Improving the Understanding of Kinetic Processes in Solar Wind and Magnetosphere: From CLUSTER to Magnetospheric Multiscale Mission Open
International audience
View article: Three-Dimensional Hybrid Code for Earth's Magnetotail Dymamics
Three-Dimensional Hybrid Code for Earth's Magnetotail Dymamics Open
This work is dedicated to the development and exploitation of a new threedimensional\n(3D) particle code for equilibrium plasma con gurations. The\ncode is of the so-called hybrid type, that is ions are treated as particles and\nelectrons …
View article: Current Sheets, Magnetic Islands, and Associated Particle Acceleration in the Solar Wind as Observed by Ulysses near the Ecliptic Plane
Current Sheets, Magnetic Islands, and Associated Particle Acceleration in the Solar Wind as Observed by Ulysses near the Ecliptic Plane Open
Recent studies of particle acceleration in the heliosphere have revealed a new mechanism that can locally energize particles up to several MeV nucleon –1 . Stream–stream interactions, as well as the heliospheric current sheet (CS)—stream i…
View article: Single-spacecraft Identification of Flux Tubes and Current Sheets in the Solar Wind
Single-spacecraft Identification of Flux Tubes and Current Sheets in the Solar Wind Open
A novel technique is presented for describing and visualizing the local topology of the magnetic field using single-spacecraft data in the solar wind. The approach merges two established techniques: the Grad–Shafranov (GS) reconstruction m…
View article: Single-spacecraft identification of flux tubes and current sheets in the Solar Wind: combined PVI and Grad-Shafronov method
Single-spacecraft identification of flux tubes and current sheets in the Solar Wind: combined PVI and Grad-Shafronov method Open
A novel technique is presented for describing and visualizing the local topology of the magnetic field using single-spacecraft data in the solar wind. The approach merges two established techniques: the Grad-Shafranov (GS) reconstruction m…
View article: [Plasma 2020 Decadal] The essential role of multi-point measurements in turbulence investigations: the solar wind beyond single scale and beyond the Taylor Hypothesis
[Plasma 2020 Decadal] The essential role of multi-point measurements in turbulence investigations: the solar wind beyond single scale and beyond the Taylor Hypothesis Open
This paper briefly reviews a number of fundamental measurements that need to be made in order to characterize turbulence in space plasmas such as the solar wind. It has long been known that many of these quantities require simultaneous mul…
View article: Turbulence-driven ion beams in the magnetospheric Kelvin-Helmholtz instability
Turbulence-driven ion beams in the magnetospheric Kelvin-Helmholtz instability Open
The description of the local turbulent energy transfer, and the high-resolution ion distributions measured by the Magnetospheric Multiscale mission, together provide a formidable tool to explore the cross-scale connection between the fluid…
View article: Turbulence-Driven Ion Beams in the Magnetospheric Kelvin-Helmholtz Instability
Turbulence-Driven Ion Beams in the Magnetospheric Kelvin-Helmholtz Instability Open
The description of the local turbulent energy transfer and the high-resolution ion distributions measured by the Magnetospheric Multiscale mission together provide a formidable tool to explore the cross-scale connection between the fluid-s…
View article: Role of lower hybrid waves in ion heating at dipolarization fronts
Role of lower hybrid waves in ion heating at dipolarization fronts Open
One of the important sources of hot ions in the magnetotail is the bursty bulk flows propagating away from the reconnection region and heating the ambient plasma. Charged particles interact with nonlinear magnetic field pulses (dipolarizat…
View article: Proton and heavy ion acceleration by electromagnetic fluctuations in the Earth’s magnetotail
Proton and heavy ion acceleration by electromagnetic fluctuations in the Earth’s magnetotail Open
International audience
View article: Proton and heavy ion acceleration by stochastic fluctuations in the Earth's magnetotail
Proton and heavy ion acceleration by stochastic fluctuations in the Earth's magnetotail Open
Spacecraft observations show that energetic ions are found in the Earth's magnetotail, with energies ranging from tens of keV to a few hundreds of keV. In this paper we carry out test particle simulations in which protons and other ion spe…
View article: THE COMPLEX STRUCTURE OF MAGNETIC FIELD DISCONTINUITIES IN THE TURBULENT SOLAR WIND
THE COMPLEX STRUCTURE OF MAGNETIC FIELD DISCONTINUITIES IN THE TURBULENT SOLAR WIND Open
Using high-resolution Cluster satellite observations and a multi-dimensional intermittency technique, we show that the magnetic discontinuities in the turbulent solar wind are connected through the spatial scales, going from proton down to…