Transit times of interplanetary coronal mass ejections and the solar wind speed

Details Transit times of interplanetary coronal mass ejections and the solar wind speed Transit times of interplanetary coronal mass ejections and the solar wind speed

Sep 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007a%26a...472..937v&link_type=abstract

Astronomy and Astrophysics, Volume 472, Issue 3, September IV 2007, pp.937-943

Astronomy and Astrophysics

Astrophysics

16

Sun: Coronal Mass Ejections (Cmes), Sun: Solar-Terrestrial Relations, Sun: Solar Wind

Scientific paper

Aims: The Sun-Earth transit time of interplanetary coronal mass ejections (ICMEs) is one of central issues of space weather forecasting. Our aim is to find out to what degree the ICME transit time depends on the solar wind speed. Methods. Two samples of coronal mass ejections (CMEs) and the associated ICMEs are used to analyze the relationship between transit times, TT, and the solar wind speed, w, measured at 1 AU ahead and behind the ICME. Results. We found a distinct correlation TT(w), clearly showing that the transit time is dependent not only on the ICME take-off speed vCME, but also on the solar wind speed. After dividing the samples into the solar wind speed bins w≤400, 400 < w ≤ 500, w > 500 km s^-1, we compared the corresponding TT(vCME) correlations to find that the transit times in the case of w ≤ 400 km s^-1 subset are longer, on average, for about 20-30 hours than in the case of the w > 500 km s^1 subset. Conclusions. Since the ICME transit time is significantly influenced by the solar wind speed, this effect should be included in statistical and kinematical methods of the space weather forecast.

Affiliated with

Also associated with

No associations

Rating

Transit times of interplanetary coronal mass ejections and the solar wind speed 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 Transit times of interplanetary coronal mass ejections and the solar wind speed, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Transit times of interplanetary coronal mass ejections and the solar wind speed will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1008855