Magnetothermal instability in cooling flows

Details Magnetothermal instability in cooling flows Magnetothermal instability in cooling flows

Feb 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990apj...349..471l&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 349, Feb. 1, 1990, p. 471-476.

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40

Cooling Flows (Astrophysics), Magnetic Effects, Magnetohydrodynamic Stability, Thermal Instability, Computational Astrophysics, Intergalactic Media, Perturbation Theory

Scientific paper

The effect of magnetic fields on thermal instability in cooling flows is investigated using linear, Eulerian perturbation analysis. As contrasted with the zero magnetic-field case, hydromagnetic stresses support perturbations against acceleration caused by buoyancy - comoving evolution results and global growth rates are straightforward to obtain for a given cooling flow entropy distribution. In addition, background and induced magnetic fields ensure that conductive damping of thermal instability is greatly reduced.

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