The 2-D magnetohydrostatic configurations leading to flares or quiescent filament eruptions

Details The 2-D magnetohydrostatic configurations leading to flares or quiescent filament eruptions The 2-D magnetohydrostatic configurations leading to flares or quiescent filament eruptions

May 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988stin...8825423a&link_type=abstract

Unknown

Computer Science

Numerical Analysis

Magnetohydrodynamic Stability, Numerical Analysis, Poloidal Flux, Solar Flares, Astronomical Models, Topology

Scientific paper

To investigate the cause of flares and quiescent filament eruptions the quasi-static evolution of a magnetohydrostatic (MHS) model was studied. The results lead to a proposal that: the sudden disruption of an active-region filament field configuration and the accompanying flare result from the lack of a neighboring equilibrium state as magnetic shear is increased above the critical value; and a quiescent filament eruption is due to an ideal MHD kink instability of a highly twisted detached flux tube formed by the increase of plasma current flowing along the length of the filament. A numerical solution was developed for the 2-D MHS equation for the self-consistent equilibrium of a filament and overlying coronal magnetic field. Increase of the poloidal current causes increase of magnetic shear. As shear increases past a critical point, there is a discontinuous topological change in the equilibrium configuration. It was proposed that the lack of a neighboring equilibrium triggers a flare. Increase of the axial current results in a detached tube with enough helical twist to be unstable to ideal MHD kink modes. It was proposed that this is the condition for the eruption of a quiescent filament.

Affiliated with

Also associated with

No associations

Rating

The 2-D magnetohydrostatic configurations leading to flares or quiescent filament eruptions 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 The 2-D magnetohydrostatic configurations leading to flares or quiescent filament eruptions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The 2-D magnetohydrostatic configurations leading to flares or quiescent filament eruptions will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-856545