7 citations · 32 across the 17 of their papers we have counts for
17 papers
High-energy Particle Transport in Three-dimensional Anisotropic Turbulent Magnetic Fields
Daniela Maci, Rony Keppens, Fabio Bacchini
The understanding and modeling of high-energy particles transport in turbulent magnetic fields is an important open question in space- and astrophysics. The multiscale, nonlinear n…
EuroHPC SPACE CoE: Redesigning Scalable Parallel Astrophysical Codes for Exascale
Nitin Shukla, Alessandro Romeo, Caterina Caravita +36
High Performance Computing (HPC) based simulations are crucial in Astrophysics and Cosmology (A&C), helping scientists investigate and understand complex astrophysical phenomena. T…
Towards Exascale Computing for Astrophysical Simulation Leveraging the Leonardo EuroHPC System
Nitin Shukla, Alessandro Romeo, Caterina Caravita +16
Developing and redesigning astrophysical, cosmological, and space plasma numerical codes for existing and next-generation accelerators is critical for enabling large-scale simulati…
Nonthermal electron acceleration in turbulent post-flare coronal loops
Clarissa Mora, Fabio Bacchini, Rony Keppens
The generation of nonthermal electrons during solar flares plays a critical role in energy transport from the corona to the chromosphere, producing regions of observed intense X-ra…
Energetic spectra from semi-implicit particle-in-cell simulations of magnetic reconnection
K. M. Schoeffler, F. Bacchini, K. Kormann +2
Astrophysical observations suggest that magnetic reconnection in relativistic plasmas plays an important role in the acceleration of energetic particles. Modeling this accurately r…
Comparing Simulated and Observed Particle Energy Distributions through Magnetic Reconnection in Earth's Magnetotail
Nadja Reisinger, Fabio Bacchini
Magnetic reconnection is an explosive process that accelerates particles to high energies in Earth's magnetosphere, offering a unique natural laboratory to study this phenomenon. T…
Three-dimensional Dynamics of Strongly Magnetized Ion-Electron Relativistic Reconnection
Fabio Bacchini, Gregory R. Werner, Camille Granier +1
We present 3D simulations of semirelativistic collisionless magnetic reconnection, where upstream ions are subrelativistic while electrons are ultrarelativistic. We employ the real…
Driven Collisionless Reconnection of Force-free Flux Tubes: From Onset to Coalescence
Camille Granier, Daniel Groselj, Luca Comisso +1
We investigate the onset of driven collisionless reconnection and plasmoid formation in a magnetically dominated pair plasma, using 2D Particle-in-Cell simulations. Two force-free…
Leaking Outside the Box: Kinetic Turbulence with Cosmic-Ray Escape
Evgeny A. Gorbunov, Daniel Grošelj, Fabio Bacchini
We study particle acceleration in strongly turbulent pair plasmas using novel 3D Particle-in-Cell simulations, featuring particle injection from an external heat bath and diffusive…
Icarus 3.0: Dynamic Heliosphere Modelling
Tinatin Baratashvili, Beatrice Popescu Braileanu, Fabio Bacchini +2
Space weather predictions are necessary to avoid damage caused by intense geomagnetic storms. Such strong storms are usually caused by a co-rotating interaction region (CIR) passin…
Can Alfvénic Fluctuations Affect the Correlation and Complexity of Magnetic Fields in Magnetic Ejecta? A Case Study Based on Multi-Spacecraft Measurements at 1~au
Camilla Scolini, Bin Zhuang, Noé Lugaz +4
We investigate whether Alfvénic fluctuations (AFs) can affect the structure of magnetic ejecta (MEs) within interplanetary coronal mass ejections (ICMEs). We study an ICME observed…
First-principles measurement of ion and electron energization in collisionless accretion flow
Evgeny A. Gorbunov, Fabio Bacchini, Vladimir Zhdankin +3
We present the largest 3D Particle-in-Cell shearing-box simulations of turbulence driven by the magnetorotational instability, for the first time employing the realistic proton-to-…
BxC Toolkit: Generating Tailored Turbulent 3D Magnetic Fields
Daniela Maci, Rony Keppens, Fabio Bacchini
Turbulent states are ubiquitous in plasmas and the understanding of turbulence is fundamental in modern astrophysics. Numerical simulations, which are the state-of-the-art approach…
Particle Trapping and Acceleration in Turbulent Post-flare Coronal Loops
Fabio Bacchini, Wenzhi Ruan, Rony Keppens
We present a study of energetic-electron trapping and acceleration in the Kelvin-Helmholtz-induced magnetohydrodynamic (MHD) turbulence of post-flare loops in the solar corona. Usi…
Collisionless Magnetorotational Turbulence in Pair Plasmas: Steady-state Dynamics, Particle Acceleration, and Radiative Cooling
Fabio Bacchini, Vladimir Zhdankin, Evgeny A. Gorbunov +4
We present 3D fully kinetic shearing-box simulations of pair-plasma magnetorotational turbulence with unprecedented macro-to-microscopic scale separation. While retrieving the expe…
On the Role of Alfvenic Fluctuations as Mediators of Coherence within Interplanetary Coronal Mass Ejections: Investigation of Multi-Spacecraft Measurements at 1 au
Camilla Scolini, Noe Lugaz, Reka M. Winslow +3
Interplanetary coronal mass ejections (ICMEs) are defined as ''coherent'' if they are capable of responding to external perturbations in a collective manner. This implies that info…
Comparative simulations of Kelvin-Helmholtz induced magnetic reconnection at the Earth's magnetospheric flanks
Silvia Ferro, Matteo Faganello, Francesco Califano +1
This study presents three-dimensional (3D) resistive Hall-magnetohydrodynamic simulations of the Kelvin-Helmholtz instability (KHI) dynamics at Earth's magnetospheric flanks during…