Nonlinear magnetosonic waves in an inhomogeneous plasma

Details Nonlinear magnetosonic waves in an inhomogeneous plasma Nonlinear magnetosonic waves in an inhomogeneous plasma

Aug 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990esasp.311..339r&link_type=abstract

In ESA, Plasma Astrophysics p 339-343 (SEE N91-15046 06-90)

Astronomy and Astrophysics

Astrophysics

Accretion Disks, Density Distribution, Inhomogeneity, Magnetic Fields, Magnetoacoustic Waves, Nonlinear Equations, Solar Atmosphere, Space Plasmas, Atmospheric Temperature, Computerized Simulation, Shock Waves, Statistical Distributions, Wave Propagation

Scientific paper

Effects of strong and random inhomogeneities of the magnetic fields, plasma density, and temperature in the solar atmosphere on the properties of magnetoacoustic waves of arbitrary amplitudes are studied. Depending on the statistical properties of the medium, different scenarios of wave propagation arise. In the predominance of dissipative effects, the primary wave is damped away in the linear stage and the efficiency of heating due to inhomogeneities is much greater than that in a homogeneous medium. The process of heating can be accomplished through the formation of shocks or through the storing of the energy of a system of solitons which are later dumped away. Computer simulations were carried out which support and extend the above theoretical investigations.

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