Physics
Scientific paper
Mar 1998
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998jgr...103.4761g&link_type=abstract
Journal of Geophysical Research, vol. 103, p. 4761
Physics
10
Statistical Analysis, Magnetohydrodynamic Flow, Coronal Mass Ejection, Satellite-Borne Instruments, International Sun Earth Explorers, Magnetic Fields, Solar Wind, Protons
Scientific paper
This is a report on the results of a statistical study of plasma flow characteristics before, during, and after coronal mass ejections (CMEs) observed by the instruments on board the ISEE3 spacecraft located near Earth's L1 libration point during the period 1978 to 1980. We have used parametric relationships between plasma properties to help distinguish between transient flow resulting from CMEs and more quiescent or quasi-static solar wind flows. A superposed epoch analysis of 29 CMEs during the period studied shows that the transient plasma flow often begins earlier and extends later than the start and end times of the CMEs based on such criteria as bidirectional flow of suprathermal electrons or energetic protons. Since the bidirectional flow is tied to the magnetic topology of the CME, our results indicate that plasma having transient flow characteristics may extend both in front of as well as behind any magnetically closed region within the CME.
Clay D.
Goldstein Raymond
Neugebauer Matthias
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