Physics
Scientific paper
Nov 1981
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981jgr....8610068m&link_type=abstract
Journal of Geophysical Research, vol. 86, Nov. 1, 1981, p. 10068-10072. Research supported by Nagoya University and University
Physics
3
Computerized Simulation, Landau Damping, Magnetosonic Resonance, Plasma Waves, Solar Wind, Codes, Kinetic Energy, Propagation Velocity, Temporal Distribution, Waveforms
Scientific paper
A particle code computer simulation was conducted for a study of the nonlinear characteristics of large-amplitude magnetosonic waves in a magnetized high-beta plasma, in order to comprehend the large-amplitude hydromagnetic fluctuations in the solar wind plasma. Nonlinear propagation characteristics and steepening time are compared with the theory of Barnes (1979), and agreement is found. After the shock formation, solitary spikes which are interpreted as magnetosonic solitons are produced. Following this evolution, a process of backward tilting of the wave magnetic profile is observed. The frequency of the magnetosonic wave in the simulation is of the order of the ion cyclotron frequency, which is much higher than that of the magnetosonic waves observed in the solar wind.
Matsumoto Haru
Nagai Katsuhiko
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