138 citations · 1.5k across the 46 of their papers we have counts for
47 papers
Shear interaction and acceleration of a corotating stream detected by Parker Solar Probe
Andrea Verdini, Simone Landi, Emanuele Papini +4
Recent analysis of Parker Solar Probe (PSP) and Solar Orbiter data indicates that fluctuations energy is transferred to the bulk flow in fast streams of the solar wind at heliocent…
Solar Wind Proton Heating and its Effect on Temperature Anisotropy Evolution between 0.05 and 1 au
Etienne Berriot, Arnaud Zaslavsky, Olga Alexandrova +3
This study focuses on the radial evolution of the solar wind proton adiabatic invariants and temperature anisotropies in the inner heliosphere. More specifically, we study in-situ…
Tearing Driven Reconnection: Energy Conversion Involving Firehose Kinetic Instabilities (2D Hybrid Möbius Simulations)
Etienne Berriot, Petr Hellinger, Olga Alexandrova +2
This study focuses on energy conversion related to tearing-driven magnetic reconnection in the context of weakly collisional astrophysical plasmas. We present results from a two-di…
Rugged magneto-hydrodynamic invariants in weakly collisional plasma turbulence: Two-dimensional hybrid simulation results
Petr Hellinger, Victor Montagud-Camps
Aims. We investigated plasma turbulence in the context of solar wind. We concentrated on properties of ideal second-order magneto-hydrodynamic (MHD) and Hall MHD invariants. Method…
Anisotropic electron heating in turbulence-driven magnetic reconnection in the near-Sun solar wind
Luca Franci, Emanuele Papini, Alfredo Micera +5
We perform a high-resolution two-dimensional fully-kinetic numerical simulation of a turbulent plasma system with observation-driven conditions, in order to investigate the interpl…
Ion-scale transition of plasma turbulence: Pressure-strain effect
Petr Hellinger, Victor Montagud-Camps, Luca Franci +4
We investigate properties of solar wind-like plasma turbulence using direct numerical simulations. We analyze the transition from large, magnetohydrodynamic (MHD) scales to the ion…
Spectrum of kinetic plasma turbulence at 0.3-0.9 astronomical units from the Sun
Olga Alexandrova, Vamsee Krishna Jagarlamudi, Petr Hellinger +3
We investigate spectral properties of turbulence in the solar wind that is a weakly collisional astrophysical plasma, accessible to in-situ observations. Using the Helios search co…
Spacetime Hall-MHD turbulence at sub-ion scales: structures or waves?
Emanuele Papini, Antonio Cicone, Luca Franci +4
Spatiotemporal properties of two-dimensional (2D) Hall-magnetohydrodynamic turbulence at intermediate plasma are studied by means of Fast Iterative Filtering, a new technique…
Spectral transfer and Kármán-Howarth-Monin equations for compressible Hall magnetohydrodynamics
Petr Hellinger, Emanuele Papini, Andrea Verdini +4
We derive two new forms of the Kármán-Howarth-Monin equation for decaying compressible Hall magnetohydrodynamic (MHD) turbulence. We test them on results of a weakly-compressible,…
Proton energization by phase-steepening of parallel propagating Alfvénic fluctuations
C. A. González, A. Tenerani, L. Matteini +2
Proton energization at magnetic discontinuities generated by phase-steepened fronts of parallel propagating, large-amplitude Alfvénic fluctuation is studied using hybrid simulation…
Evidence of a "current-mediated" turbulent regime in space and astrophysical plasmas
Luca Franci, Daniele Del Sarto, Emanuele Papini +6
How the turbulent energy cascade develops below the magnetohydrodynamic scales in space and astrophysical plasmas is a major open question. Here, we measure the power spectrum of m…
Magnetic field turbulence in the solar wind at sub-ion scales: in situ observations and numerical simulations
L. Matteini, L. Franci, O. Alexandrova +5
We investigate the transition of the solar wind turbulent cascade from MHD to sub-ion range by means of a detail comparison between in situ observations and hybrid numerical simula…
The role of parametric instabilities in turbulence generation and proton heating: Hybrid simulations of parallel propagating Alfvén waves
C. A. González, A. Tenerani, M. Velli +1
Large amplitude Alfvén waves tend to be unstable to parametric instabilities which result in a decay process of the initial wave into different daughter waves depending upon the am…
Multidimensional Iterative Filtering: a new approach for investigating plasma turbulence in numerical simulations
Emanuele Papini, Antonio Cicone, Mirko Piersanti +4
Turbulent space and astrophysical plasmas exhibit a complex dynamics, which involves nonlinear coupling across different temporal and spatial scales. There is growing evidence that…
On cascade of kinetic energy in compressible hydrodynamic turbulence
Petr Hellinger, Andrea Verdini, Simone Landi +3
Properties of the turbulent cascade of kinetic energy are studied using direct numerical simulations of three-dimensional hydrodynamic decaying turbulence with a moderate Reynolds…
Kinetic turbulence in space plasmas observed in the near-Earth and near-Sun solar wind
Olga Alexandrova, Vamsee Krishna Jagarlamudi, Claudia Rossi +4
Turbulence develops in any stressed flow when the scales of the forcing are much larger than those of the dissipation. In neutral fluids, it consists of chaotic motions in physical…
Modeling Kelvin-Helmholtz instability-driven turbulence with hybrid simulations of Alfvénic turbulence
Luca Franci, Julia E. Stawarz, Emanuele Papini +9
Magnetospheric Multiscale (MMS) observations of plasma turbulence generated by a Kelvin-Helmholtz (KH) event at the Earth's magnetopause are compared with a high-resolution two-dim…
Fast acceleration of transrelativistic electrons in astrophysical turbulence
Domenico Trotta, Luca Franci, David Burgess +1
Highly energetic, relativistic electrons are commonly present in many astrophysical systems, from solar flares to the intra-cluster medium, as indicated by observed electromagnetic…
Turbulence vs. fire hose instabilities: 3-D hybrid expanding box simulations
P. Hellinger, L. Matteini, S. Landi +3
The relationship between a decaying plasma turbulence and proton fire hose instabilities in a slowly expanding plasma is investigated using three-dimensional (3-D) hybrid expanding…
In-situ observation of Hall Magnetohydrodynamic Cascade in Space Plasma
Riddhi Bandyopadhyay, Luca Sorriso-Valvo, Alexandros Chasapis +13
We present estimates of the turbulent energy cascade rate, derived from a Hall-MHD third-order law. We compute the contribution from the Hall term and the MHD term to the energy fl…
Spectral anisotropies and intermittency of plasma turbulence at ion kinetic scales
Simone Landi, Luca Franci, Emanuele Papini +3
By means of three dimensional high-resolution hybrid simulations we study the properties of the magnetic field spectral anisotropies near and beyond ion kinetic scales. By using bo…
Can Hall Magnetohydrodynamics explain plasma turbulence at sub-ion scales?
Emanuele Papini, Luca Franci, Simone Landi +3
We investigate the properties of plasma turbulence by means of two-dimensional Hall-magnetohydrodynamic (HMHD) and hybrid particle-in-cell (HPIC) numerical simulations. We find tha…
Electron mirror instability: Particle-in-cell simulations
Petr Hellinger, Stepan Stverak
Properties of the electron mirror instability and its competition with the usually dominant whistler (electron cyclotron) instability driven by the electron perpendicular temperatu…
Von Karman-Howarth equation for Hall magnetohydrodynamics: Hybrid simulations
Petr Hellinger, Andrea Verdini, Simone Landi +2
A dynamical vectorial equation for homogeneous incompressible Hall-MHD turbulence together with the exact scaling law for third-order correlation tensors, analogous to that for the…