%0 Journal Article
%T ICMEsLikelyFromtheSameActiveRegionObservedbyBothHelios1andIMP8
%A DU
%A Dan
%A WANG
%A Chi
%J 空间科学学报
%P 177-181
%D 2007
%X ThechanceofanInterplanetaryCoronalMassEjection(ICME)observedbywidely-separatedspacecraftisrare.However,suchaneventprovidesusagoodopportunitytostudythepropagationandevolutionofICMEsintheheliosphere.Onday72of1975,anICMEwasobservedbyHelios1at0.3AU,whileasimilarsolarwindstructurewasobservedbyIMP8atEarthonday70of1975.OnthebasisofcomparisonoftheplasmasignaturesandthetransittimefromHelios1toIMP8,wehypothesizetheobservedICMEsbybothspacecraftareresultedfromthesameactiveregiononthesolarsurface.Aone-dimensionalMHDmodelwasusedtotracktheICMEfromHelios1(0.3AU)toEarth.TheobservedplasmaprofilesandtimingareclosetothosepredictedbyourMHDmodelandthus,givethesupportstothemodel.
%K ICME
%K Propagationandevolution
%U http://www.cjss.ac.cn/CN/abstract/abstract950.shtml