Jim Fuller edited section_Magnetic_Trapping_subsection_Magneto__.tex  about 9 years ago

Commit id: 3fb733b05da6e91a07a747c85fabe4fdb17b4560

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\label{eqn:vamin}  2 |\mu| v_A > \frac{\omega^2}{N k_\perp} \, .  \end{equation}  Low frequency gravity waves cannot exist because magnetic tension overwhelms the buoyancy force, i.e., the stiff field lines cannot be bent by the slow placid  gravity wave motion. For a radially oriented field, magneto-gravity waves are evanescent in regions where $\omega < \omega_{\rm MG}$, and $\omega_{\rm MG}$ is the magneto-gravity frequency defined as \begin{equation}  \label{eqn:maggrav}  \omega_{MG} = \sqrt{2 v_A N k_\perp} \, .