MHD simulation of the formation and propagation of multiple magnetic clouds in the heliosphere

Details MHD simulation of the formation and propagation of multiple magnetic clouds in the heliosphere MHD simulation of the formation and propagation of multiple magnetic clouds in the heliosphere

Apr 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005a%26a...434..309w&link_type=abstract

Astronomy and Astrophysics, Volume 434, Issue 1, April IV 2005, pp.309-316

Astronomy and Astrophysics

Astrophysics

12

Magnetohydrodynamics (Mhd), Methods: Numerical, Sun: Coronal Mass Ejections (Cmes), Interplanetary Medium, Standards

Scientific paper

A multiple-magnetic-cloud (Multi-MC) structure formed by the overtaking of two successive coronal mass ejections (CMEs) in the heliosphere is studied by using a 2.5-D MHD simulation. This simulation illustrates the process of the formation and propagation of two identical CMEs, which are ejected with speeds of 400 km s-1 and 600 km s-1 respectively and initially separated by 12 h. The results show that it takes ~18 h for the fast cloud to catch up with the preceding slow one, then the two clouds form a Multi-MC structure that arrives at 1 AU three days later. The fast cloud is slowed down significantly because of the blocking by the preceding slow one. This implies that the travel time of a Multi-MC structure is dominated by the preceding slow cloud. Moreover, most primary observational characteristics of Multi-MC at 1 AU are well represented by the simulation. In addition, by combining observations, theoretical model and the simulation results, differences between Multi-MC and other types of in-situ observed double-flux-rope structure are addressed. A comparison of Multi-MC to coronal-mass-ejection cannibalization near Sun is also given.

Affiliated with

Also associated with

No associations

Rating

MHD simulation of the formation and propagation of multiple magnetic clouds in the heliosphere 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 MHD simulation of the formation and propagation of multiple magnetic clouds in the heliosphere, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and MHD simulation of the formation and propagation of multiple magnetic clouds in the heliosphere will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1452094