4 papers · 1 filter
A Neural Operator Closure for Landau Damping in Electrostatic Plasma
Samuel Burles, Enrico Camporeale, Oreste Pezzi
We present a data-driven plasma fluid closure for both linear and nonlinear electrostatic Landau damping in one dimension. A Fourier Neural Operator (FNO) is trained online within…
Numerical simulations of waves and turbulence in coronal loops: observables and spectra
Fabio Feraco, Francesco Pucci, Claudio Meringolo +11
We investigate numerically the time evolution of velocity and magnetic field fluctuations in a coronal loop, focusing on the dynamics due to both phase mixing and turbulent cascade…
Non-Maxwellianity of Ion Velocity Distributions in the Earth's Magnetosheath
Louis Richard, Sergio Servidio, Ida Svenningsson +6
We analyze the deviations from local thermodynamic equilibrium (LTE) of the ion velocity distribution function (iVDF) in collisionless plasma turbulence. Using data from the Magnet…
Flat-top electron velocity distributions driven by wave-particle resonant interactions
Sofia Zanelli, Silvia Perri, Martina Condoluci +6
The role of kinetic electrons in the excitation and sustainment of ion-bulk electrostatic waves in collisionless plasmas is investigated, with a focus on the physical mechanisms re…