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\subsection{Stellar activity and tides}\label{context}  The double red giant eclipsing binary KIC 9246715 is an interesting system with photometric variations from stellar activity and a very eccentric orbit given its age, long orbital period, and well-separated nature. In this section, we discuss how stellar activity and tidal forces have likely interacted over the binary's lifetime to arrive at the system we see today.  STELLAR ACTIVITY IS FOR REALS, DISCUSS FIGURE \ref{fig:emission1} AND \ref{fig:emission2}. MAYBE THE OBSERVED LINES HAVE A BIT LESS EW THAN THE MODEL,  SO IT'S TIME FOR ANOTHER PLOT ABOUT MAGNETIC SENSITIVE LINES. MAYBE THERE IS CHROMOSPHERIC EMISSION/ZEEMAN SPLITTING/OTHER STUFF HAPPENING?  To estimate how tidal forces may affect the orbital eccentricity, we follow the approach of \citet{ver95}, a study of tidal circularization in binaries containing giant stars. We consider a detached binary with constant $a$ and constant binary masses. Equations 5 and 6 \citep{ver95} state: 
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