Fig. 7From: Cluster observation of magnetohydrodynamic turbulence in the plasma sheet boundary layerDistribution of the local energy peaks in the Fourier domain spanning the wavevector magnitudes and the spacecraft frequencies (top) and distribution of the wavevector directions from the large-scale magnetic field (bottom). The dotted line indicates the dispersion relation with a slope of the Alfvén speed, \(V_{\rm A} = 1390.6\,\mathrm{km/s}\) Back to article page