Thermal instability in a stratified plasma

Details Thermal instability in a stratified plasma Thermal instability in a stratified plasma

Jan 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989plap.work...99h&link_type=abstract

In ESA, Proceedings of an International School and Workshop on Plasma Astrophysics, Volume 1 p 99-102 (SEE N89-24910 18-75)

Astronomy and Astrophysics

Astrophysics

Magnetic Disturbances, Magnetohydrodynamic Stability, Solar Activity, Solar Corona, Stellar Structure, Finite Element Method, Plasma Slabs, Plasma Spectra, Stellar Models

Scientific paper

The thermal instability mechanism was studied in connection with observed coronal features, e.g., prominences or cool cores in loops. The thermal instability and the interaction between thermal modes and the slow magneto-acoustic subspectrum for a stratified plasma slab were considered. The relevant system of equations is formulated, and straightforward properties of the linear spectrum of a nonuniform plasma slab, i.e., the existence of continuous parts in the spectrum, are given. A numerical scheme to investigate the linear spectrum for equilibrium states with stratification is presented. The slow and thermal subspectra of a crude coronal model are given as a preliminary result.

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