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The Magnetothermal Instability in the Intracluster Medium
Ian J. Parrish, James M. Stone, M. Nicole Lemaster
The electron mean free path in the intracluster medium (ICM) of galaxy clusters is much larger than the gyroradius; thus, heat is transported anisotropically along magnetic field l…
Nonlinear Simulations of the Heat Flux Driven Buoyancy Instability and its Implications for Galaxy Clusters
Ian J. Parrish, Eliot Quataert
In low collisionality plasmas heat flows almost exclusively along magnetic field lines, and the condition for stability to convection is modified from the standard Schwarzschild cr…
Coulomb Bubbles: Over-stable Driving of Magnetoacoustic Waves Due to the Rapid and Anisotropic Diffusion of Energy
Aristotle Socrates, Ian J. Parrish, James M. Stone
We perform a linear magnetohydrodynamic perturbation analysis for a stratified magnetized envelope where the diffusion of heat is mediated by charged particles that are confined to…
Saturation of the Magnetothermal Instability in Three Dimensions
Ian J. Parrish, James M. Stone
In dilute astrophysical plasmas, thermal conduction is primarily along magnetic field lines, and therefore highly anisotropic. As a result, the usual convective stability criterion…
Simulation of the Magnetothermal Instability
Ian J. Parrish, James M. Stone
In many magnetized, dilute astrophysical plasmas, thermal conduction occurs almost exclusively parallel to magnetic field lines. In this case, the usual stability criterion for con…
Nonlinear Evolution of the Magnetothermal Instability in Two Dimensions
Ian J. Parrish, James M. Stone
In weakly magnetized, dilute plasmas in which thermal conduction along magnetic field lines is important, the usual convective stability criterion is modified. Instead of depending…