deletions | additions       diff --git a/subsection_The_Signal_Distortion_label__.tex b/subsection_The_Signal_Distortion_label__.tex  index 7db9b76..bb6b345 100644  --- a/subsection_The_Signal_Distortion_label__.tex  +++ b/subsection_The_Signal_Distortion_label__.tex 
...
\label{eqn:Gamma_obs}  \Gamma_{\rm obs}^2 = \Gamma_{\rm act}^2 + \left( 2b \right)^2.   \end{equation}  Figure \ref{fig:compare_profiles} shows how a non-central encounter modifies the observed pressure profile, and we call this modificationof the observed signal  the signal distortion. Combining the Equations \ref{eqn:P_obs} and \ref{eqn:Gamma_obs} gives the following useful expression: \begin{equation}  \label{eqn:P_obs_Gamma_obs}  P_{\rm obs}\ \Gamma_{\rm obs}^2 = P_{\rm act}\ \Gamma_{\rm act}^2.