The magnetothermal stability of radially stratified line-tied coronal loops

Details The magnetothermal stability of radially stratified line-tied coronal loops The magnetothermal stability of radially stratified line-tied coronal loops

Nov 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992esasp.348..269v&link_type=abstract

In ESA, Proceedings of the First SOHO Workshop: Coronal Streamers, Coronal Loops, and Coronal and Solar Wind Composition p 269-2

Other

Coronal Loops, Solar Magnetic Field, Solar Prominences, Thermal Instability, Equilibrium Equations, Magnetohydrodynamic Stability, Mathematical Models, Solar Energy

Scientific paper

The influence of the photospheric anchoring of the magnetic field lines (line tying) in the magnetic and thermal (or 'magnetothermal') stability of radially stratified coronal loops is studied. The anchoring of the magnetic field lines in the photosphere is modeled by line tying boundary conditions. Using a simple force free equilibrium, it is shown that line tying has a much stronger influence on a magnetic instability than on a thermal instability. Thus, line tying can lead to loops that are magnetically stable but thermally unstable. In such loops, condensations can form due to a thermal instability. This may be of relevance in the context of the formation and eruption of prominences in the solar corona.

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