Spectral law and polarization properties of the low-frequency waves at the magnetopause

Details Spectral law and polarization properties of the low-frequency waves at the magnetopause Spectral law and polarization properties of the low-frequency waves at the magnetopause

Mar 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999georl..26..651r&link_type=abstract

Geophysical Research Letters, Volume 26, Issue 6, p. 651-654

Physics

Plasma Physics

9

Magnetospheric Physics: Solar Wind/Magnetosphere Interactions, Magnetospheric Physics: Magnetopause, Cusp, And Boundary Layers, Space Plasma Physics: Turbulence, Space Plasma Physics: Waves And Instabilities

Scientific paper

The magnetic fluctuations, at the magnetopause and in the adjacent magnetosheath, exhibit power law spectra which are very reminiscent of turbulent spectra. In prospect of future modelizations of such a turbulence, new information is brought about the experimental properties of these fluctuations. The power laws spectra previously obtained in the ULF range are shown to hold also in VLF, up to the lower hybrid frequency. Concerning the polarization, 1) the direction with respect to the static magnetic field is shown to be dominantly perpendicular at low frequencies, consistently with Shear Alfven modes in this range, and 2) no right-hand sense of rotation can be evidenced at frequencies higher than the proton gyrofrequency, although one could expect the fast magnetosonic mode to be dominant in this range. The physical implications of this last observation for the non linear effects at work in the turbulence are briefly discussed.

Affiliated with

Also associated with

No associations

Rating

Spectral law and polarization properties of the low-frequency waves at the magnetopause does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Spectral law and polarization properties of the low-frequency waves at the magnetopause, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spectral law and polarization properties of the low-frequency waves at the magnetopause will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1449034