Figure 6. Profiles of the parallel electric
field calculated for the stationary state versus the length of
the magnetic field line given in the nightside auroral
magnetosphere. The solid and dotted lines represent the strength
of the total parallel electric field and the part of the
parallel electric field caused by the anomalous resistivity of the
plasma, respectively. The curves are shown for the case where
Dr=100 km,
E
=10 mV m-1, and
W/(nkBT2)=1
10-3 at
s=0. Besides,
n1/n3=10 at
the top of the given magnetic field line (s=sm) for
t=0.