\begin{table}%t5 \caption{\label{narrow}Parameters of the Gaussian fits to the narrow lines detected in SN~2007rt from the day~153 and 160~spectra.} %\centerline {\small \begin{tabular}{llccc} \hline \hline & & $\lambda$ & {FWHM} & $I$ \\ Line & Day& \AA\ & \kms &10$^{-15}$~erg~s$^{-1}$~cm$^{2}$\\ \hline [Fe{\sc vii}] 6086 & 153 & 6087.26 & 43 & 0.079 \\ \mbox{[O {\sc i}]} 6300 & 153 & 6300.63 & 47 & 0.090 \\ \mbox{ [Fe {\sc x}]} 6374 & 153 & 6374.80 & 47 & 0.110 \\ \mbox{[N {\sc ii}]} 6548 & 153 & 6548.35 & 20 & 0.058 \\ \mbox{[N {\sc ii}]} 6583 & 153 & 6583.72 & 29 & 0.157 \\ H$_{\alpha}$ 6563~(e) & 153 & 6562.43 & 84 & 8.84 \\ Narrow (a) & 153 & 6563.89 & 54 & 3.41 \\ (e)& 160 & 6561.80 & 213 (463)& 3.97 \\ \mbox{[Ne {\sc iii}]} 3866 & 160 & 3865.03 & 289 (756) & 0.596 \\ \mbox{[O {\sc iii}]} 4363 & 160 & 4358.23 & 198 (650) & 0.317 \\ \mbox{[O {\sc iii}]} 4959 & 160 & 4956.10 & (568) & 0.187 \\ \mbox{[O {\sc iii}]} 5007 & 160 & 5008.36 & (537) & 0.480 \\ \mbox{N {\sc ii}} 5755 & 160& 5754.09 & (407) &0.47 \\ \mbox{He {\sc i}} 5875 & 160 & 5873.27 & (396) & 0.08 \\ \mbox{He {\sc i}} 7065 & 160 & 7066.50 & 185 (424) & 0.252\\ \hline \end{tabular}} \medskip The FWHM presented in parentheses are not corrected for resolution, all other values are:~e- emission, a- absorption. \end{table}