CME Structures in the
IP Medium: Magnetic Clouds
•• Axial field orientation from Multi-spacecraft Observations (Helios 1&2, Voyager 2, IMP 8
•
•• Flux Rope Structure from Force Free equilibrium calculations
•(Burlaga et al., 1981)
AXIS
Ecliptic plane
.3 AU
Mag. Pressure
> Ambient Pressure
Width:
0.25 AU
He 1
Vo2
IMP8,
He 2