[Wanner 1994 a]
Observational evidence for a spurious dependence of slab QLT proton mean free
paths on the magnetic field angle
W. Wanner, U. Jaekel, M.-B. Kallenrode, G. Wibberenz and
R. Schlickeiser.
Observational evidence for a spurious dependence of slab QLT proton mean free
paths on the magnetic field angle.
Astronomy and Astrophysics 290L, 5-8. 1994
Contents
We provide evidence that a correlation exists between the angle of the
interplanetary magnetic field with respect to the solar wind direction and
the ratio of phenomenological and theoretical MeV proton mean free paths,
derived from particle observations and quasi-linear theory using the slab
model for the observed magnetic field fluctuations.
We suggest that this may tentatively be interpreted as an indication that the
slab model is not sufficient for describing the magnetic field turbulence.
The finding is relevant for new attemps to resolve the old mean free path
discrepancy problem.
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