Presentation 1 : None
The Solar Wind as seen by Ulysses and SoHO (PNST)
Milan Maksimovic
I will present some of the results from the Ulysse and SOHO
missions, that have improved greatly our understanding of the
solar corona and the associated solar wind and heliosphere.
Presentation 2 : None
CLUSTER observations of turbulence at the earth's bow shock (PNST)
M. Maksimovic, S. D. Bale, N. Cornilleau-Wehrlin et al.
We analyze electric and magnetic field power spectral densities
of plasma waves in the earth’s bow shock using the STAFF and
EFW experiments on Cluster. The shock properties are computed
from the timing of the boundary crossings on the four spacecraft,
using the spacecraft potential change as the boundary indicator.
The waves power spectral densities are measured in the frequency
8 Hz to 4 kHz using the STAFF spectrum analyzer. We study the
correlations of the spectral shape, peak intensity and growth rate
of the plasma wave turbulence with the shock characteristics such
as the normal angle or Alven Mach number.