Finite-beta effects on the radiative thermal instability in magnetized plasmas

Details Finite-beta effects on the radiative thermal instability in magnetized plasmas Finite-beta effects on the radiative thermal instability in magnetized plasmas

Apr 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989ap%26ss.154..311m&link_type=abstract

Astrophysics and Space Science (ISSN 0004-640X), vol. 154, no. 2, April 1989, p. 311-319. Research supported by the Pakistan Sci

Astronomy and Astrophysics

Astrophysics

Beta Factor, Magnetoacoustics, Magnetohydrodynamic Stability, Thermal Instability, Two Fluid Models, Acoustic Propagation, Astronomical Models, Electron Cyclotron Heating, Gyrofrequency, Maxwell Equation, Wave Propagation

Scientific paper

The radiative thermal instability is investigated taking into account finite-beta, or electromagnetic, effects. The two-fluid model for magnetized plasmas together with the Maxwell equations are used to derive a general dispersion relation valid for compressional perturbations with frequency below the electron-cyclotron frequency. The growth rates of the radiative thermal instabilities involving fast magnetosonic flute-like and low-frequency hydromagnetic perturbations are presented.

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