1206.3890 (Carlo Nipoti et al.)

Magnetothermal stability of a rotating stratified plasma    [PDF]

Carlo Nipoti, Lorenzo Posti

The thermal stability of a weakly-magnetized, rotating, stratified, optically-thin plasma is studied by means of linear-perturbation analysis. We derive dispersion relations and criteria for stability against axisymmetric perturbations that generalize previous results on either non-rotating or unmagnetized fluids. The implications for the hot atmospheres of galaxies and galaxy clusters are discussed.

View original: http://arxiv.org/abs/1206.3890