Zobrazeno 1 - 10
of 85
pro vyhledávání: '"Ciardi, Andrea"'
The non-thermal particles escaping from collisionless shocks into the surrounding medium can trigger a non-resonant streaming instability that converts parts of their drift kinetic energy into large amplitude magnetic field perturbations, and promote
Externí odkaz:
http://arxiv.org/abs/2407.18978
Autor:
Horný, Vojtěch, Burdonov, Konstantin, Fazzini, Alice, Lelasseux, Vincent, Antici, Patrizio, Chen, Sophia Nan, Ciardi, Andrea, Davoine, Xavier, d'Humières, Emmanuel, Gremillet, Laurent, Lecherbourg, Ludovic, Mathieu, François, Papadopoulos, Dimitrios, Yao, Weipeng, Fuchs, Julien
Compact laser-plasma acceleration of fast ions has made great strides since its discovery over two decades ago, resulting in the current generation of high-energy ($\geq 100\,\rm MeV$) ultracold beams over ultrashort ($\leq 1\,\rm ps$) durations. To
Externí odkaz:
http://arxiv.org/abs/2404.11321
In a grid-less Electron Cyclotron Resonance (ECR) plasma thruster with a diverging magnetic nozzle, the magnitude of the ambipolar field accelerating the positive ions depends of the perpendicular energy gained by the electrons. This work investigate
Externí odkaz:
http://arxiv.org/abs/2301.11411
Autor:
Aunai, Nicolas, Smets, Roch, Ciardi, Andrea, Deegan, Philip, Jeandet, Alexis, Payet, Thibault, Guyot, Nathan, Darrieumerlou, Loic
Modeling multi-scale collisionless magnetized processes constitutes an important numerical challenge. By treating electrons as a fluid and ions kinetically, the so-called hybrid Particle-In-Cell (PIC) codes represent a promising intermediary between
Externí odkaz:
http://arxiv.org/abs/2210.14580
Autor:
Yao, Weipeng, Nakatsutsumi, Motoaki, Buffechoux, Sébastien, Antici, Patrizio, Borghesi, Macro, Ciardi, Andrea, Chen, Sophia N., d'Humières, Emmanuel, Gremillet, Laurent, Heathcote, Robert, Horný, Vojtěch, McKenna, Paul, Quinn, Mark N., Romagnani, Lorenzo, Royle, Ryan, Sarri, Gianluca, Sentoku, Yasuhiko, Schlenvoigt, Hans-Peter, Toncian, Toma, Tresca, Olivier, Vassura, Laura, Willi, Oswald, Fuchs, Julien
Realizing the full potential of ultrahigh-intensity lasers for particle and radiation generation will require multi-beam arrangements due to technology limitations. Here, we investigate how to optimize their coupling with solid targets. Experimentall
Externí odkaz:
http://arxiv.org/abs/2208.06272
Streaming cosmic rays can power the exponential growth of a seed magnetic field by exciting a non-resonant instability that feeds on their bulk kinetic energy. By generating the necessary turbulent magnetic field, it is thought to play a key role in
Externí odkaz:
http://arxiv.org/abs/2111.15272
Autor:
Yao, Weipeng, Capitaine, Julien, Khiar, Benjamin, Vinci, Tommaso, Burdonov, Konstantin, Béard, Jérôme, Fuchs, Julien, Ciardi, Andrea
Magnetized laser-produced plasmas are central to many new studies in laboratory astrophysics, inertial confinement fusion, and industrial applications. Here we present the results of large-scale, three-dimensional magneto-hydrodynamic simulations of
Externí odkaz:
http://arxiv.org/abs/2105.13800
Autor:
Smets, Roch, Aunais, Nicolas, Ciardi, ANdrea, Drouin, Matthieu, Campos-Pino, Martin, Deegan, Philip
Publikováno v:
Computer Physics Communications, 2020
Particle-In-Cell codes are widely used for plasma physics simulations. It is often the case that particles within a computational cell need to be split to improve the statistics or, in the case of non-uniform meshes, to avoid the development of ficti
Externí odkaz:
http://arxiv.org/abs/2104.10675
Autor:
Aunai, Nicolas, Smets, Roch, Ciardi, Andrea, Deegan, Philip, Jeandet, Alexis, Payet, Thibault, Guyot, Nathan, Darrieumerlou, Loic
Publikováno v:
In Computer Physics Communications February 2024 295
The cosmic rays non-resonant streaming instability is believed to be the source of substantial magnetic field amplification. In this work we investigate the effects of the ambient plasma temperature on the instability and derive analytical expression
Externí odkaz:
http://arxiv.org/abs/2010.10237