20 Electrons
Gamma=500
T=0.68 10^9 T_OM
no initial rotation

T is way above orientational
melting (T=0.68 10^9 T_OM!)
So relative rotation of the
two shells is possible.
Note that rotation starts
"spontaneously".

Initially, all velocities (their
magnitude is given by the
temperature T) are set in
radial direction. But quickly,
they start to rotate (due to con-
servation of angular momentum)
in opposite direction.

same, but higher T
same, T, but random initial rotation

20 Electrons, Gamma=500 | 19 Electrons, Gamma=500 | 19 vs 20 Electrons, Gamma=500
19 Electrons, 1 pinned, Gamma=500 | 19 Electrons, 1 pinned, Gamma=160 | 19 Electrons, 1 pinned, Gamma=100
19 (1 pinned ) vs 20 Electrons, Gamma=500 | 19 Electrons free vs. pinned, Gamma=500 | 19 Electrons (1 pinned), Gamma=500 vs. 160
19 Electrons, Gamma=500, zero initial rotation | 20 Electrons, Gamma=500, zero initial rotation | 20 Electrons, Gamma=100, zero initial rotation