Results 1 to 10 of about 67,804 (213)

Energetic spectra from semi-implicit particle-in-cell simulations of magnetic reconnection [PDF]

Scientific Reports
Astrophysical observations suggest that magnetic reconnection in relativistic plasmas plays an important role in the acceleration of energetic particles. Modeling this accurately requires numerical schemes capable of addressing large scales and realistic
K. M. Schoeffler, F. Bacchini, K. Kormann, B. Eichmann, M. E. Innocenti   +4 more
doaj   +2 more sources

Magnetohydrodynamic Guiding Center Particle-in-cell Method for Multiscale Plasma Kinetic Simulations

The Astrophysical Journal Supplement Series
We present the formulation, algorithm, and numerical tests of the magnetohydrodynamic particle-in-cell (MHD-PIC) method with particles treated under the guiding center approximation, which we term the MHD-gPIC method, and it is implemented in the Athena++
Zitao Hu, Xue-Ning Bai, Xiaochen Sun
doaj   +2 more sources

Particle-In-Cell Simulation Using Asynchronous Tasking [PDF]

, 2021
Recently, task-based programming models have emerged as a prominent alternative among shared-memory parallel programming paradigms. Inherently asynchronous, these models provide native support for dynamic load balancing and incorporate data flow concepts to selectively synchronize the tasks.
Guidotti, Nicolas, Ceyrat, Pedro, Barreto, João, Monteiro, José, Rodrigues, Rodrigo, Fonseca, Ricardo, Martorell Bofill, Xavier, Peña Monferrer, Antonio José   +7 more
openaire   +3 more sources

Particle-in-Cell Simulations of Astrophysical Relativistic Jets

Universe, 2021
Astrophysical relativistic jets in active galactic nuclei, gamma-ray bursts, and pulsars is the main key subject of study in the field of high-energy astrophysics, especially regarding the jet interaction with the interstellar or intergalactic ...
Athina Meli, Ken-ichi Nishikawa
doaj   +1 more source

Determining Pitch-Angle Diffusion Coefficients for Electrons in Whistler Turbulence

Physics, 2022
Transport of energetic electrons in the heliosphere is governed by resonant interaction with plasma waves, for electrons with sub-GeV kinetic energies specifically with dispersive modes in the whistler regime.
Felix Spanier, Cedric Schreiner, Reinhard Schlickeiser   +2 more
doaj   +1 more source

Particle in Cell Simulation [PDF]

International Journal of Applied Physics and Mathematics, 2012
Aim of this work is particle system simulation by the new programming language therefore we reviewed several methods for simulation of plasma systems. The particle-in-cell (PIC) method is then applied on a simple plasma system. In the PIC method ions are considered as a neutral-stationary background where electrons move around their initially occupied ...
F. Ebadpour, A. Navid
openaire   +1 more source

Mitigation of electron cloud effects in the FCC-ee collider

EPJ Techniques and Instrumentation, 2022
Electron clouds forming inside the beam vacuum chamber due to photoemission and secondary emission may limit the accelerator performance. Specifically, the electron clouds can blow up the vertical emittance of a positron beam, through a head-tail-type ...
Fatih Yaman, Giovanni Iadarola, Roberto Kersevan, Salim Ogur, Kazuhito Ohmi, Frank Zimmermann, Mikhail Zobov   +6 more
doaj   +1 more source

Electron mirror instability: particle-in-cell simulations [PDF]

Journal of Plasma Physics, 2018
Properties of the electron mirror instability and its competition with the usually dominant whistler (electron cyclotron) instability driven by the electron perpendicular temperature anisotropy are investigated at the linear level using a Vlasov linear solver and at the nonlinear level using a two-dimensional full particle code.
Petr Hellinger, Štěpán Štverák
openaire   +3 more sources

Particle Energization at a High Mach Number Perpendicular Shock: 1D Particle-in-cell Simulations

The Astrophysical Journal, 2023
In this paper, we use a 1D particle-in-cell simulation code to study particle preaccelerations at a high Mach number perpendicular shock. Our simulation results show that almost all of the injected particles can be reflected at the shock front, and then ...
Yufei Hao, Zhongwei Yang, Fan Guo, Terry Z. Liu, Xiangliang Kong, Lican Shan, Dejin Wu   +6 more
doaj   +1 more source

Ion dynamics in electron beam–plasma interaction: particle-in-cell simulations [PDF]

Annales Geophysicae, 2014
Electron beam–plasma interaction including ions is studied by particle-in-cell (PIC) simulations using a one-dimensional, electrostatic code. Evidence for Langmuir wave decay is given for sufficiently energetic beams, as in previous Vlasov–Maxwell ...
K. Baumgärtel
doaj   +1 more source