The stability and uniqueness of coronal loops

Details The stability and uniqueness of coronal loops The stability and uniqueness of coronal loops

Mar 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982soph...76..331c&link_type=abstract

Solar Physics, vol. 76, Mar. 1982, p. 331-355.

Physics

33

Chromosphere, Coronal Loops, Hydrodynamic Equations, Magnetohydrodynamic Stability, Solar Flares, Stellar Models, Lagrange Coordinates, Parameterization, Perturbation Theory, Solar Atmosphere, Solar Temperature, Spatial Resolution, Temperature Profiles

Scientific paper

The hydrodynamic behavior of the hot plasma produced in solar flares has attracted considerable interest in recent years. In most hydrodynamic studies a static model for the loop structure is assumed. However, it has recently been argued that certain static loop configurations may be radiatively unstable. A detailed stability-uniqueness analysis of a typical active region loop is, therefore, performed. The numerical difficulties in the case of dynamic flare models are considered along with approaches for overcoming these problems. Attention is given to the generation of the initial atmosphere, a finite amplitude perturbation analysis, and aspects of loop dynamics. It is found to be possible to generate self-consistent static loop models which are stable to finite-amplitude perturbations on the plasma.

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