Particle Simulation of Electromagnetic Waves and Its Application to Space Plasmas

Matsumoto, Hiroshi; Omura, Yoshiharu

doi:10.1007/978-94-009-5321-5_2

Cited by 38 publications

(26 citation statements)

References 19 publications

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“…We used an electromagnetic particle code, Kyoto electromagnetic particle code (KEMPO) [Matsumoto and Omura, 1985] in one-and two-dimensional systems with a periodic boundary condition. The one-dimensional system is taken along the X axis along the ambient magnetic field.…”

Section: Configurationsmentioning

confidence: 99%

One‐ and two‐dimensional simulations of electron beam instability: Generation of electrostatic and electromagnetic 2f_p waves

Kasaba¹,

Matsumoto²,

Omura³

2001

J. Geophys. Res.

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Section: Configurationsmentioning

confidence: 99%

One‐ and two‐dimensional simulations of electron beam instability: Generation of electrostatic and electromagnetic 2f_p waves

Kasaba¹,

Matsumoto²,

Omura³

2001

J. Geophys. Res.

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“…To attain a numerical efficiency in the two-dimensional simulations, we developed a two-dimensional electrostatic particle code (kuES2) based on Kyoto university ElectroMagnetic Particle code (KEMPO) [Matsumoto and Omura, 1984]. The simulation system is taken in the x-y plane with periodic boundaries.…”

Section: Simulation Modelmentioning

confidence: 99%

Two‐dimensional computer simulations of electrostatic solitary waves observed by Geotail spacecraft

Miyake¹,

Omura²,

Matsumoto³

et al. 1998

J. Geophys. Res.

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Abstract. We performed computer simulations of electrostatic solitary waves (ESW), which correspond to broadband electrostatic noise (BEN), observed by Geotail spacecraft in the magnetotail. According to Geotail/WFC data analysis, ESW are composed of sequences of impulsive solitary waves, and their potentials are revealed to have uniform structures in the direction perpendicular to the ambient magnetic field. We performed a series of two-dimensional electrostatic particle simulations with a cold electron beam drifting against background hot electrons along the ambient magnetic field. In these simulations, spatial potentials are excited by the initial electron beam instability. They coalesce with each other and form potential troughs uniform in the direction perpendicular to the ambient magnetic field, as predicted by the Geotail observations. We varied the magnitude of the ambient magnetic field and found that this parameter critically affects the ESW formation process. These simulation results indicate that ESW are excited by the electron beam instability in the presence of the static magnetic field with a certain magnitude. ESW are also subject to the enhanced thermal fluctuations due to the limited number of superparticles in the simulations.

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“…[6] The full-particle simulation code (KEMPO) [Matsumoto and Omura, 1985] used in the present study treats both ions and electrons as macroparticles. The simulations are one-dimensional (1-D) and two-dimensional in space but fully three-dimensional in velocity space.…”

Section: Simulation Modelmentioning

confidence: 99%

Generation mechanism of electrostatic waves in the upstream and shock transition regions of quasi‐parallel shocks

2005

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[1] Primarily, one-dimensional full-particle electromagnetic simulations supplemented by a two-dimensional simulation are performed to investigate the excitation processes of electrostatic waves in quasi-parallel shocks. The characteristic waves are ion acoustic, ion beam-mode, and upper-hybrid waves. In the upstream region, only ion beam-mode electrostatic waves are excited by the reflected ion beam running almost parallel to the ambient magnetic field. We find that the ion beam-mode waves evolve into electrostatic solitary waves (ESW) for an appropriate ion beam velocity. The evolution of the ion beam-mode to ESW is most clearly observed in the simulation when the ambient magnetic field is taken to be parallel to the ion beam direction. We confirm that the ion beam-mode waves are excited only in the direction parallel to the ambient magnetic field. In the shock transition region (STR) the simulation results show that upper-hybrid waves are excited on the upstream side of the STR by the reflected ion beam running almost perpendicular to the ambient magnetic field. In the STR region a large-amplitude and quasi-monochromatic oblique whistler wave is also excited. On the downstream side of the STR, ion acoustic waves are excited. The mechanism of the excitation of the ion acoustic wave is the current-driven instability. This instability is generated by the velocity difference between ions and electrons due to electron acceleration in the shock potential. Of these three types of waves, the ion acoustic waves scatter electrons most effectively and contribute to the electron heating processes in the shock region.Citation: Matsumoto, H., M. Iwata, and T. Sugiyama (2005), Generation mechanism of electrostatic waves in the upstream and shock transition regions of quasi-parallel shocks,

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Particle Simulation of Electromagnetic Waves and Its Application to Space Plasmas

Cited by 38 publications

References 19 publications

One‐ and two‐dimensional simulations of electron beam instability: Generation of electrostatic and electromagnetic 2f_p waves

One‐ and two‐dimensional simulations of electron beam instability: Generation of electrostatic and electromagnetic 2f_p waves

Two‐dimensional computer simulations of electrostatic solitary waves observed by Geotail spacecraft

Generation mechanism of electrostatic waves in the upstream and shock transition regions of quasi‐parallel shocks

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Particle Simulation of Electromagnetic Waves and Its Application to Space Plasmas

Cited by 38 publications

References 19 publications

One‐ and two‐dimensional simulations of electron beam instability: Generation of electrostatic and electromagnetic 2fp waves

One‐ and two‐dimensional simulations of electron beam instability: Generation of electrostatic and electromagnetic 2fp waves

Two‐dimensional computer simulations of electrostatic solitary waves observed by Geotail spacecraft

Generation mechanism of electrostatic waves in the upstream and shock transition regions of quasi‐parallel shocks

Contact Info

Product

Resources

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One‐ and two‐dimensional simulations of electron beam instability: Generation of electrostatic and electromagnetic 2f_p waves

One‐ and two‐dimensional simulations of electron beam instability: Generation of electrostatic and electromagnetic 2f_p waves