Article (Scientific journals)
Heliospheric Images of the Solar Wind at Earth
Sheeley, Neil R.; Herbst, A.D.; Palatchi, C.A. et al.
2008In Astrophysical Journal, 675, p. 853-862
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Keywords :
corona; coronal mass ejections; magnetic fields
Abstract :
[en] During relatively quiet solar conditions throughout the spring and summer of 2007, the SECCHI HI2 white-light telescope on the STEREO B solar-orbiting spacecraft observed a succession of wave fronts sweeping past Earth.We have compared these heliospheric images with in situ plasma and magnetic field measurements obtained by near-Earth spacecraft, and we have found a near perfect association between the occurrence of these waves and the arrival of density enhancements at the leading edges of high-speed solar wind streams. Virtually all of the strong corotating interaction regions are accompanied by large-scale waves, and the low-density regions between them lack such waves. Because the Sun was dominated by long-lived coronal holes and recurrent solar wind streams during this interval, there is little doubt that we have been observing the compression regions that are formed at low latitude as solar rotation causes the high-speed wind from coronal holes to run into lower speed wind ahead of it.
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Sheeley, Neil R.
Herbst, A.D.
Palatchi, C.A.
Wang, Yiming
Howard, Russell A.
Moses, John Daniel
Vourlidas, Angelos
Newmark, Jeffrey S.
Socker, Dennis G.
Plunkett, Simon P.
Korendyke, Clarence M.
Burlaga, Leonard F.
Davila, Joseph M.
Thompson, William T.
St Cyr, Orville Chris
Harrison, Richard A.
Davis, Christopher A.
Eyles, Christopher J.
Halain, Jean-Philippe ;  Université de Liège > CSL (Centre Spatial de Liège)
Wang, Dennis
Rich, Nathan B.
Battams, Karl
Esfandiari, E.
Stenborg, Guillermo Adrian
More authors (14 more) Less
Language :
English
Title :
Heliospheric Images of the Solar Wind at Earth
Publication date :
2008
Journal title :
Astrophysical Journal
ISSN :
0004-637X
eISSN :
1538-4357
Publisher :
University of Chicago Press
Volume :
675
Pages :
853-862
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
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