Interaction between coronal mass ejections and the solar wind

Details Interaction between coronal mass ejections and the solar wind Interaction between coronal mass ejections and the solar wind

Aug 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007jgra..11208107j&link_type=abstract

Journal of Geophysical Research, Volume 112, Issue A8, CiteID A08107

Physics

Plasma Physics

14

Radio Science: Remote Sensing, Solar Physics, Astrophysics, And Astronomy: Coronal Mass Ejections (2101), Space Plasma Physics: Turbulence (4490), Solar Physics, Astrophysics, And Astronomy: General Or Miscellaneous

Scientific paper

Observations suggest that the interplanetary extensions of coronal mass ejections (iCMEs) may be accelerated or decelerated in their passage through the solar wind. Interplanetary scintillation measurements (IPS) can detect the passage of iCMEs beyond the field of view of the Large-Angle and Spectrometric Coronagraph coronagraphs and can provide information on their velocities. The European Incoherent Scatter Radar and the Multi Element Radio Linked Interferometer Network systems, with a field of view covering 10-120 solar radii, can provide information on iCMEs in the inner regions of the solar wind. IPS observations can also provide solar wind velocity measurements ahead of the iCME, and using this information, we consider the velocity profile of a number of clearly defined iCMEs and the relationship between iCME velocities and that of the background solar wind. The results provide additional confirmation that iCMEs converge toward the velocity of the solar wind ahead of the event and that most of the resulting acceleration or deceleration occurs in the innermost regions of the solar wind.

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