AbstractA solar wind parcel evolves as it moves outward, interacting with the solar wind plasma ahead of and behind it and with the interstellar neutrals. This structure varies over a solar cycle as the latitudinal speed profile and current sheet tilt change. We model the evolution of the solar wind with distance, using inner heliosphere data to predict plasma parameters at Voyager. The shocks which pass Voyager 2 often have different structure than expected; changes in the plasma and/or magnetic field do not always occur simultaneously. We use the recent latitudinal alignment of Ulysses and Voyager 2 to determine the solar wind slowdown due to interstellar neutrals at 80AU and estimate the interstellar neutral density. We use Voyager data to predict the termination shock motion and location as a function of time.
Solar wind structure in the outer heliosphere
Advances in Space Research ; 41 , 2 ; 237-244
2007-03-27
8 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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