Low-frequency fluctuations in the solar wind. I - Theory

Details Low-frequency fluctuations in the solar wind. I - Theory Low-frequency fluctuations in the solar wind. I - Theory

Mar 1975

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975apj...196..849w&link_type=abstract

Astrophysical Journal, vol. 196, Mar. 15, 1975, pt. 1, p. 849-857.

Astronomy and Astrophysics

Astrophysics

8

Fluctuation Theory, Magnetohydrodynamic Waves, Power Spectra, Proton Flux Density, Solar Magnetic Field, Solar Wind, Cyclotron Frequency, Kinetic Theory, Low Frequencies, Magnetoacoustic Waves, Satellite Observation, Solar Protons, Wave Dispersion

Scientific paper

Several simple relationships between the power spectra of density and velocity fluctuations and the power spectrum of magnetic field fluctuations are derived within the context of plasma kinetic theory. The theory is restricted to the low-frequency regime (less than the proton cyclotron frequency) where hydromagnetic turbulence is expected to play the most important role. The affects of Alfven and magnetosonic waves upon the plasma fluctuations are discussed separately. The results are then applied to proton fluctuations in the solar wind, demonstrating a connection between plasma and field fluctuations.

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