deletions | additions       diff --git a/section_Magnetic_Trapping_subsection_Magneto__.tex b/section_Magnetic_Trapping_subsection_Magneto__.tex  index 87f1b91..63f4c36 100644  --- a/section_Magnetic_Trapping_subsection_Magneto__.tex  +++ b/section_Magnetic_Trapping_subsection_Magneto__.tex 
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\label{eqn:Bc}  B_c= \sqrt{\frac{\pi \rho}{2}} \, \frac{\omega^2 r}{N} \, .  \end{equation}  Low frequency gravity waves cannot exist in these regions because magnetic tension overwhelms the buoyancy force, i.e., the stiff field lines cannot be bent by the placid gravity wave motion. In other words, gravity  waves become are  evanescent in regions  where their frequency $\omega$ is less than the magneto-gravity frequency $\omega_{\rm MG}$ defined as \begin{equation}  \label{eqn:maggrav}  \omega_{MG} = \sqrt{2 v_{A,r} N k_\perp} \, .