2012/06/30 by Carlo Nipoti, Lorenzo Posti
Physics and Astronomy · #Astronomy #Astrophysics #Astrophysics and Star Formation Studies #Classical mechanics #Dispersion relation #Galaxy #Magnetohydrodynamics #Mechanics #Optics #Perturbation (astronomy) #Physics #Plasma #Quantum mechanics #Rotational symmetry #Solar and Space Plasma Dynamics #Stability (learning theory) #Stellar, planetary, and galactic studies #Thermal #Thermodynamics #astro-ph.GA #physics.plasm-ph
paper · pdf · doi:10.1093/mnras/sts070
16 pages, 3 figures, MNRAS accepted. New figures and corrected equations with respect to previous version. Results unchanged
arxiv created 2012/09/25 · openalex publication_date 2012/10/25 · arxiv updated 2015/06/05 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
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.