\begin{table}%t3 \caption{\label{tab:Iband_mags}The $I$-band magnitudes adopted for the combined \epsba, Bb~system by different studies.} \small%\centerline { \begin{tabular}{ccc} \hline \hline\noalign{\smallskip} Date & $\varepsilon$ Indi Ba, Bb & Reference\\ \hline \hline 1997.771 & 16.59 $\pm$ 0.10 & SSS-UK \\ 1999.666 & 16.77 $\pm$ 0.10 & SSS-UK \\ 2000.781 & 16.90 $\pm$ 0.12 & DENIS \\ 2004.462 & 16.70 $\pm$ 0.04 & \citet{Koen:2005a} \\ 2004.546 & 16.95 $\pm$ 0.03 & This work \\ \hline \end{tabular}} \medskip We have used the FORS2 Bessell $I$-band filter which is similar to the DENIS $I$-band, while \citet{Koen:2005a} used the Cousins $I$-band. \end{table}