activity
20022022
most citedParticle Acceleration in Relativistic Jets due to Weibel Instability

205 citations · 1.8k across the 50 of their papers we have counts for

collaborators

50 papers

astro-ph.HE2022★ 8 cited

Two-dimensional Particle-in-Cell simulations of axisymmetric black hole magnetospheres: angular dependence of the Blandford-Znajek flux

Kouichi Hirotani, Hsien Shang, Ruben Krasnopolsky +1

We examine the temporary evolution of axisymmetric magnetospheres around rapidly rotating black holes (BHs), by applying our two-dimensional particle-in-cell simulation code. Assum…

astro-ph.HE2021

From electrons to Janskys: Full stokes polarized radiative transfer in 3D relativistic particle-in-cell jet simulations

N. R. MacDonald, K. -I. Nishikawa

The underlying plasma composition of relativistic extragalactic jets remains largely unknown. Relativistic magnetohydrodynamic (RMHD) models are able to reproduce many of the obser…

astro-ph.HE2020★ 12 cited

Two-dimensional Particle-in-Cell simulations of axisymmetric black hole magnetospheres

Kouichi Hirotani, Ruben Krasnopolsky, Hsien Shang +2

We investigate the temporal evolution of an axisymmetric magnetosphere around a rapidly rotating, stellar-mass black hole, applying a two-dimensional particle-in-cell simulation sc…

astro-ph.HE2020★ 9 cited

3D PIC Simulations for Relativistic Jets with a Toroidal Magnetic Field

A. Meli, K. Nishikawa, C. Koehn +6

We have investigated how kinetic instabilities such as the Weibel instability (WI), the mushroom instability (MI), and the kinetic Kelvin-Helmholtz instability (kKHI) are excited i…

astro-ph.HE2020★ 51 cited

PIC methods in astrophysics: Simulations of relativistic jets and kinetic physics in astrophysical systems

Kenichi Nishikawa, Ioana Dutan, Christoph Koehn +1

The Particle-In-Cell (PIC) method has been developed by Oscar Buneman, Charles Birdsall, Roger W. Hockney, and John Dawson in the 1950s and, with the advances of computing power, h…

astro-ph.HE2019★ 22 cited

Rapid Particle Acceleration due to Recollimation Shocks and Turbulent Magnetic Fields in Injected Jets with Helical Magnetic Fields

Kenichi Nishikawa, Yosuke Mizuno, Jose L. Gomez +7

One of the key questions in the study of relativistic jets is how magnetic reconnection occurs and whether it can effectively accelerate electrons in the jet. We performed 3D parti…