Wave propagation in plasmas with very strong magnetic field

In the study of wave propagation in a warm magneto-ionic plasma, the fluid equations are usually supplemented by the equation of state where the pressure is assumed to be isotropic. This model appears to be a good approximation only for a collision-dominated regime. In this paper, the third moment equation derived from the Boltzmann-Vlasov equation is used instead of the equation of state. By following the Chew-Goldberger-Low theory, the dispersion relation for plane wave propagation can be determined under the adiabatic condition, for strong magnetic field, and without assuming isotropic pressure. Discussions of propagation characteristics under a few special conditions are also included.