Other
Scientific paper
Oct 1994
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994ssrv...70..289s&link_type=abstract
Space Science Reviews, Volume 70, Issue 1-2, pp. 289-294
Other
7
Sun, Corona, Streamers, Coronal Mass Ejections
Scientific paper
Numerical solutions of the time-dependent MHD equations are used to generate ambient coronal streamer structures in a corona characteristic of that near solar minimum. The streamers are then disrupted by slow photospheric shear motion at the base of magnetic field lines within the closed field region, which is currently believed to be responsible for producing at least some CMEs. In contrast to several other simulations of this phenomena, the polytropic index is maintained at a value of 5/3 through the addition of coronal heating. Observations are used as a guide in determining the thermodynamic structure and plasma beta in the ambient corona. For a shear speed of 2.5 km/sec, the streamer configuration evolves slowly for about 65 hours before erupting outward with the formation of a CME. The bright CME leading edge travels outward at a speed of about 240 km/sec, and the sheared field lines follow at a somewhat slower speed. A closed magnetic field region is ejected as the magnetic field lines that were opened by the CME reconnect and reform the streamer.
No associations
LandOfFree
Modeling coronal streamers and their eruption 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 Modeling coronal streamers and their eruption, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Modeling coronal streamers and their eruption will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1073523