Study of the Propagation of CMEs in the Inner Heliosphere Using SMEI and STEREO- SECCHI-HI Data

Details Study of the Propagation of CMEs in the Inner Heliosphere Using SMEI and STEREO- SECCHI-HI Data Study of the Propagation of CMEs in the Inner Heliosphere Using SMEI and STEREO- SECCHI-HI Data

May 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008agusmsh21a..03w&link_type=abstract

American Geophysical Union, Spring Meeting 2008, abstract #SH21A-03

Physics

2111 Ejecta, Driver Gases, And Magnetic Clouds, 2164 Solar Wind Plasma, 7513 Coronal Mass Ejections (2101), 7954 Magnetic Storms (2788)

Scientific paper

The geometric and propagation characteristics of interplanetary coronal mass ejections (ICMEs) are investigated using data obtained by the LASCO coronagraph, the Solar Mass Ejection Imager (SMEI) and the SECCHI imaging experiments on each STEREO spacecraft. The early evolution of CMEs can be tracked by the LASCO C2 and C3 and SECCHI COR1 and 2 coronagraphs and the HI instruments can track them further into the heliosphere. SMEI is an all-sky imager that has tracked ICMEs from elongations >20 deg. to beyond 100 deg. The HI-2 fields of view (fov's) lie within the SMEI fov and, thus, can observe the same ICME, especially east of the Sun. We present results for ICMEs observed on 24-29 January 2007. This includes measurements of the structural and kinematic evolution of ICMEs and comparisons with drive/drag kinematic, the HAFv2 kinematic and the ENLIL MHD models. Crucial to the analysis procedure is an understanding of the effects of projection across large distances, which are not generally required with coronagraph data. Also discussed is the physics behind the evolution of ICMEs at large distances from the Sun, including the inclusion of an internal driving force for some ICMEs, which appears necessary to maintain their speed well into the interplanetary medium.

Affiliated with

Also associated with

No associations

Rating

Study of the Propagation of CMEs in the Inner Heliosphere Using SMEI and STEREO- SECCHI-HI Data does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Study of the Propagation of CMEs in the Inner Heliosphere Using SMEI and STEREO- SECCHI-HI Data, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Study of the Propagation of CMEs in the Inner Heliosphere Using SMEI and STEREO- SECCHI-HI Data will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1398931