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Dynamic processes in the outer heliosphere: voyager observations and models
Wang, C.; Richardson, J. D.
Source PublicationAdvances in specifying plasma temperatures and ion composition in the ionosphere
AbstractWe review recent Voyager 2 observations in the vicinity of 70 AU. The character of the solar wind plasma data between 2002 and 2003 changed to a regime in which the speed, density and magnetic field magnitude are positively correlated. The average speed of the solar wind at Voyager 2 increased between early 2003 and mid-2004, which we attribute to a return of fast coronal hole flow. We use solar wind data at Earth as input to numerical models which include the effect of pickup ions to model the radial evolution of the solar wind. The model reproduces the basic features of the observations. As a specific example, we investigate the propagation of the Halloween (Oct.-Nov.), 2003 storms in the outer heliosphere. The model predictions are in reasonable agreement with Voyager 2 observations. (c) 2004 COSPAR. Published by Elsevier Ltd. All rights reserved.
KeywordSolar Wind Plasma Interplanetary Shock Outer Heliosphere Numerical Model
Conference Name35th COSPAR Scientific Assembly
Conference Date2005
Conference PlaceParis, FRANCE
Indexed ByCPCI
Document Type会议论文
Recommended Citation
GB/T 7714
Wang, C.,Richardson, J. D.. Dynamic processes in the outer heliosphere: voyager observations and models[C]. OXFORD:Elsevier Science Ltd,2005:2102-2105.
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