deletions | additions       diff --git a/subsection_Mode_Visibility_Here_we__.tex b/subsection_Mode_Visibility_Here_we__.tex  index 6fddb24..ce7b0b9 100644  --- a/subsection_Mode_Visibility_Here_we__.tex  +++ b/subsection_Mode_Visibility_Here_we__.tex 
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\frac{V_{\rm sup}^2}{V_{\rm norm}^2} = \bigg[1 + \Delta \nu \tau_0 T^2 \bigg]^{-1} \, .  \end{equation}  The damping time $\tau_0$ is the lifetime of wave energy located in the acoustic cavity. It is not equal to themode  lifetime of a normal non-suppressed  dipole mode, because much of their its  energy resides within the core. Instead, it is approximately equal to the mode lifetime of a radial mode, because all of its energy is in the acoustic cavity. Thus, $\tau_0$ can be estimated from observed/theoretical lifetimes of radial modes.