97 citations · 1.2k across the 43 of their papers we have counts for
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Critical comparison of collisionless fluid models: Nonlinear simulations of parallel firehose instability
Taiki Jikei, Takanobu Amano
Two different fluid models for collisionless plasmas are compared. One is based on the classical Chew-Goldberger-Low (CGL) model that includes a finite Larmor radius (FLR) correcti…
Particle Acceleration by Pickup Process Upstream of Relativistic Shocks
Masanori Iwamoto, Takanobu Amano, Yosuke Matsumoto +2
Particle acceleration at magnetized purely perpendicular relativistic shocks in electron-ion plasmas are studied by means of two-dimensional particle-in-cell simulations. Magnetize…
Mach Number Dependence of Ion-scale Kinetic Instability at Collisionless Perpendicular Shock: Condition for Weibel-dominated Shock
Takuro Nishigai, Takanobu Amano
We investigate ion-scale kinetic plasma instabilities at the collisionless shock using linear theory and nonlinear Particle-in-Cell (PIC) simulations. We focus on the Alfvén-ion-cy…
Electron Acceleration at Rippled Low-Mach-number Shocks in High-beta Collisionless Cosmic Plasmas
Oleh Kobzar, Jacek Niemiec, Takanobu Amano +4
Using large-scale fully-kinetic two-dimensional particle-in-cell simulations, we investigate the effects of shock rippling on electron acceleration at low-Mach-number shocks propag…
A non-local fluid closure for modeling cyclotron resonance in collisionless magnetized plasmas
Taiki Jikei, Takanobu Amano
A fluid description for collisionless magnetized plasmas that takes into account the effect of cyclotron resonance has been developed. Following the same approach as the Landau flu…
Magnetic field amplification by the Weibel instability at planetary and astrophysical high-Mach-number shocks
Artem Bohdan, Martin Pohl, Jacek Niemiec +5
Collisionless shocks are ubiquitous in the Universe and often associated with strong magnetic field. Here we use large-scale particle-in-cell simulations of non-relativistic perpen…