Fig. 1. Profiles of the unperturbed density (solid curve ) and Alfvén speed (dashed curve ) for the inhomogeneity parameter .
![[FIGURE]](img62.gif)
![[FORMULA]](img58.gif)
(solid curve ) and Alfvén speed (dashed curve ) for the inhomogeneity parameter ![[FORMULA]](img60.gif)
.