\begin{table}%t3 \caption{Spitzer fine-structure lines observed in J05375027-6911071.} %\begin{minipage}[t]{\columnwidth} \label{lines_tab} %\centering \par \begin{tabular}{l c c c c } \hline\hline \noalign{\smallskip} Line ID & $\lambda_{\rm rest}$ & EP$^{a}$ & Flux$^{b}$ & $EW^{a}$ \\ & [$\mu$m] & [eV] & [10$^{-20}$ Wcm$^{-2}$] & [nm] \\ \noalign{\smallskip} \hline \noalign{\smallskip} \multicolumn{5}{c}{Clear detections}\\ \noalign{\smallskip} $ $[S IV] & 10.51 & 34.8 & 2.35 $\pm$ 0.26 & 10 \\ $ $[Ne II] & 12.81 & 21.6 & 17.2 $\pm$ 4.0 & 80 \\ $ $[Ne III] & 15.56 & 41.0 & 8.4 $\pm$ 0.26 & 40 \\ $ $[S III] & 18.71 & 23.3 & 13.3 $\pm$ 0.3 & 60 \\ $ $[Fe II] & 25.99 & 7.9 & 3.32 $\pm$ 0.93 & 20 \\ $ $[S III] & 33.48 & 23.3 & 55.6 $\pm$ 1.4 & 210 \\ $ $[Si II] & 34.82 & 8.15& 20.7 $\pm$ 0.8 & 70 \\ $ $[Ne III] & 36.01 & 41.0 & 1.64 $\pm$ 0.52 & 5 \\ \noalign{\smallskip} \multicolumn{5}{c}{Marginal detections}\\ \noalign{\smallskip} \hline \noalign{\smallskip} $ $[Ar III] & 8.99 & 27.6 & 1.20 $\pm$ 0.27 & 4.27 \\ $ $H$_{2}$ S(1) & 17.03 & --& 0.8 $\pm$ 0.37 & 6.54 \\ $ $[Fe II] & 17.93 & 7.9 & 0.17 $\pm$ 0.19 & 1.70 \\ $ $[Ar III] & 21.83 & 27.6 & 0.74 $\pm$ 0.20 & 4.00 \\ $ $[Fe III] & 22.92 & 16.2 & 1.47 $\pm$ 0.40 & 6.53 \\ \hline \end{tabular} \smallskip Note. Emission line properties obtained from single Gaussian fits in the IRS spectrum (Fig.~\ref{IRS_total}).\\ $^a$ EP = Excitation Potential, $EW$ = Equivalent Width (observed).\\ $^b$ Quoted uncertainties are the errors from the line fit and do not include calibration uncertainties. \end{table}