A Statistical Study of the Ejecta - Shock Standoff Distance of Geoeffective Events

Details A Statistical Study of the Ejecta - Shock Standoff Distance of Geoeffective Events A Statistical Study of the Ejecta - Shock Standoff Distance of Geoeffective Events

Dec 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007agufmsh31a0236l&link_type=abstract

American Geophysical Union, Fall Meeting 2007, abstract #SH31A-0236

Astronomy and Astrophysics

Astrophysics

7500 Solar Physics, Astrophysics, And Astronomy, 7513 Coronal Mass Ejections (2101), 7900 Space Weather, 7954 Magnetic Storms (2788), 7974 Solar Effects

Scientific paper

e study the interplanetary transport of 57 coronal mass ejections (CMEs), which are part of the events responsible for large geomagnetic storms of solar cycle 23 listed in the CDAW database. The interplanetary counterparts of these CMEs (ICMEs) were shock-driving and have caused intense (Dst < -100) geomagnetic storms. We study the statistical behavior of the standoff distance and time between the ICME and the shock. We divided our events into two groups, 1) events where there is likely a one-to-one relationship between the CMEs and ICMEs (unique events) and 2) events where multiple CMEs may be associated with a single ICME. We find that the standoff time of the unique events follows a normal distribution whit a mean of 7.6 hr. and a sigma σ = 4.7 hr. The standoff distance of unique events also follows a normal distribution with a mean of ~ 0.1 AU and a sigma of ~ 0.05 AU. We did not found any relationship between the position of the AR,associated to the low coronal CME activity, and the standoff distance. On the other hand there seems to be a linear relationship between the CME speed and the standoff distance.

Affiliated with

Also associated with

No associations

Rating

A Statistical Study of the Ejecta - Shock Standoff Distance of Geoeffective Events 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 A Statistical Study of the Ejecta - Shock Standoff Distance of Geoeffective Events, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A Statistical Study of the Ejecta - Shock Standoff Distance of Geoeffective Events will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1416929