Streamer belt control of near-ecliptic ICME rate during the solar cycle 23 minimum

Details Streamer belt control of near-ecliptic ICME rate during the solar cycle 23 minimum Streamer belt control of near-ecliptic ICME rate during the solar cycle 23 minimum

Dec 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010agufmsh51c1688k&link_type=abstract

American Geophysical Union, Fall Meeting 2010, abstract #SH51C-1688

Astronomy and Astrophysics

Astrophysics

[2101] Interplanetary Physics / Coronal Mass Ejections, [2111] Interplanetary Physics / Ejecta, Driver Gases, And Magnetic Clouds, [7536] Solar Physics, Astrophysics, And Astronomy / Solar Activity Cycle

Scientific paper

During the deep and prolonged solar cycle 23 minimum the coronal streamer belt structure experienced dramatic changes. Using the OMNI data base and solar observations we examine how the variations in the streamer belt configuration were reflected in the overall solar wind structure and how they control the occurrence rate and properties of interplanetary coronal mass ejections (ICMEs) near the ecliptic plane. We found that throughout the cycle 23 minimum the CME and near-ecliptic ICME rates diverged. This divergence is presumably caused by the variations in the streamer belt structure and by slow high-latitude CMEs that deflect towards the equator. The identified ICMEs during the cycle 23 minimum were slightly smaller and had clearly weaker magnetic fields than ICMEs of previous solar minimum. This implies that during the cycle 23 minimum CMEs were in general weaker and/or there was a larger population of CMEs that were crossed close to the edge of the ICME structure than during the previous solar minimum. We also discuss the location of the source surface during the solar minimum conditions and how it affects the observations.

Affiliated with

Also associated with

No associations

Rating

Streamer belt control of near-ecliptic ICME rate during the solar cycle 23 minimum 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 Streamer belt control of near-ecliptic ICME rate during the solar cycle 23 minimum, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Streamer belt control of near-ecliptic ICME rate during the solar cycle 23 minimum will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1511516