Shear-induced inflation of coronal magnetic fields

Details Shear-induced inflation of coronal magnetic fields Shear-induced inflation of coronal magnetic fields

Aug 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989stin...9014178k&link_type=abstract

Unknown

Mathematics

Coronal Holes, Magnetic Flux, Mathematical Models, Shearing, Solar Corona, Solar Magnetic Field, Footprints, Force-Free Magnetic Fields, Potential Fields, Pressure Gradients

Scientific paper

Using numerical models of force-free magnetic fields, the shearing of footprints in arcade geometries leading to an inflation of the coronal magnetic field was examined. For each of the shear profiles considered, all of the field lines become elevated compared with the potential field. This includes cases where the shear is concentrated well away from the arcade axis, such that Bz, the component of field parallel to the axis, increases outward to produce an inward Bzsquared/8 pi magnetic pressure gradient force. These results contrast with an earlier claim, shown to be incorrect, that field lines can sometimes become depressed as a result of shear. It is conjectured that an inflation of the entire field will always result from the shearing of simple arcade configurations. These results have implications for prominence formation, the interplanetary magnetic flux, and possibly also coronal holes.

Affiliated with

Also associated with

No associations

Rating

Shear-induced inflation of coronal magnetic fields 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 Shear-induced inflation of coronal magnetic fields, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Shear-induced inflation of coronal magnetic fields will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1521486