Radial Variation of Magnetic Flux Ropes

Russell, C. T.; Mulligan, T.; Anderson, B. J.

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Radial Variation of Magnetic Flux Ropes

Date

2003-09-02

Authors

Russell, C. T.

Mulligan, T.

Anderson, B. J.

Abstract

Multiple spacecraft observations are used to examine the spatial variation of magnetic flux ropes in the interplanetary medium near 1 AU. When the observing spacecraft are close and radially aligned they observe nearly the same structure. When they are radially aligned and far apart they reveal the expansion of the ropes with heliocentric distance. When the spacecraft are azimuthally separated and the separation vector is along the rope axis, this axis is shown to be bent. The observed radial expansion is consistent with earlier Helios results.