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Interpretation of Cluster data on chorus emissions using the backward wave oscillator model
Trakhtengerts, V. Y.; Demekhov, A. G.; Titova, E. E. +4 more
The measurements of chorus emissions by four closely separated Cluster spacecraft provide important information concerning the chorus generation mechanism. They confirm such properties of the wave source as their strong localization near the equatorial cross section of a magnetic flux tube, an almost parallel average wave-vector direction with res…
Wavelet analysis of magnetic turbulence in the Earth's plasma sheet
Balogh, A.; Zhang, T. L.; Nakamura, R. +4 more
Recent studies provide evidence for the multiscale nature of magnetic turbulence in the plasma sheet. Wavelet methods represent modern time series analysis techniques suitable for the description of statistical characteristics of multiscale turbulence. Cluster FGM (fluxgate magnetometer) magnetic field high-resolution (67 Hz) measurements are stud…
Dependence of frequency of nonlinear cold plasma cylindrical oscillations on electron density
Fainberg, J.; Osherovich, Vladimir
For cold plasma, the frequency of small amplitude Langmuir oscillations along one Cartesian coordinate is ωpo=√4πe2no/me , where np=no is the constant proton density which is equal to the average electron density ne¯. This formula for ωpo is the basis for measu…