\begin{abstract} \section{Introduction} The study of Active Galactic Nuclei (AGN) promises to inform many fields of physical science. As a standard candle, AGN could provide structural information about the universe beyond the supernova horizon, allowing a better measurement of cosmological parameters such as the Expansion Coefficient. \subsection{continuing research} \endsubsection \subsection{Traditional Reverberation Mapping} \endsubsection \subsection{Maximum Likelihood Method} \endsubsection \endsection \section{Results} \endsection \section{Future Work} \endsection