MHD leaky waves in a layered plasma: III Numerical solutions

We study numerically the Fourier pseudomodes of complex frequency, that rep resent leaky waves, for two configurations consisting of three layers of un iform plasma in equilibrium, using the methods developed in the previous pa pers. The spectra consist of an infinite set of branches. We introduce a sh orthand notation that allows us to identify the branches and we discuss the ir behavior. We show examples of leaky waves that in the neighborhood of ce rtain limiting cases correspond to some of the four basic mechanisms discus sed in a previous paper.