Presentation 2 : Oral
Some results of the Cluster STAFF experiment (PNST)
N. Cornilleau-Wehrlin, G. Chanteur, S. Perraut, L. Rezeau, P. Robert, A. Roux, F. Sahraoui, G. Belmont, M. Maksimovic, D. Hubert, C. Lacombe, M. Parrot, J.L. Pinçon, O. Santolik, C.C.Harvey, W. Kofman
The Spatio Temporal Analysis of Field Fluctuations (STAFF) consists of a three-axis search coil magnetometer to measure magnetic fluctuations at frequencies up to 4 kHz, a waveform unit (up to either 10 Hz or 180 Hz) and a spectrum analyser (up to 4 kHz). The spectrum analyser combines the 3 magnetic components of the waves with the two electric components measured by the Electric Fields and Waves experiment to calculate in real time the 5 x 5 Hermitian cross-spectral matrix.
Specific tools have been developed to take full benefit of the four spacecraft measurements. These tools permit the characterisation of plasma waves and turbulence, their propagation or the characterisation of the motion of boundaries. Results obtained in some key regions of the magnetosphere-solar wind system explored by Cluster will be presented.