\begin{table}%T1 \caption{\label{fluxes}Observed line fluxes, $F_{\lambda}$, and intensities, $I_{\lambda}$, of nebular and stellar (Wolf-Rayet, WR) lines in each of the four VLT/FORS2 IC~4662 apertures, relative to H$\beta=100$. H$\beta$ fluxes are shown separate from normalised values in units of 10$^{-13}$ erg s$^{-1}$ cm$^{-2}$. } %\centerline { \begin{tabular}{ l@{\hspace{1.5mm}}c@{\hspace{1.5mm}}c@{\hspace{3mm}} r@{\hspace{1.5mm}}r@{\hspace{4mm}} r@{\hspace{1.5mm}}r@{\hspace{4mm}} r@{\hspace{1.5mm}}r@{\hspace{4mm}} r@{\hspace{1.5mm}}r} \hline\hline%\\[-3.2mm] $\lambda$(\AA) & ID & & \multicolumn{2}{c}{\#1} & \multicolumn{2}{c}{\#2} & \multicolumn{2}{c}{\#3} & \multicolumn{2}{c}{\#4}\\ & & & $F_{\lambda}$ & $I_{\lambda}$ & $F_{\lambda}$ & $I_{\lambda}$ & $F_{\lambda}$ & $I_{\lambda}$ & $F_{\lambda}$ & $I_{\lambda}$ \\[-3.4mm]\\ \hline 3727 & [O~{\sc ii}] & & 66.2 & 83.8 & 102.2 & 113.9 & 146.7 & 174.8 & 142.2 & 163.6 \\ 3867 & [Ne~{\sc iii}] & & 40.6 & 50.1 & 57.6 & 62.6 & 10.1 & 11.8 & 183.6 & 204.7\\ 3968 & [Ne~{\sc iii}] + H7 & & 24.8 & 30.1 & 22.4 & 24.2 & 6.2 & 7.1 & 115.0 & 127.1 \\ 4058 & N~{\sc iv} & WR & 1.8 & 2.1 & -- & -- & 1.8 & 2.1 & 0.5 & 0.6 \\ 4100 & H$\delta$ & & 21.1 & 25.4 & 23.9 & 27.1 & 22.9 & 26.4 & 25.0 & 28.5 \\ 4340 & H$\gamma$ & & 41.4 & 46.4 & 45.9 & 49.9 & 42.3 & 45.5 & 42.8 & 46.4 \\ 4363 & [O~{\sc iii}] & & 7.1 & 7.9 & 6.4 & 7.4 & 6.4 & 7.0 & 6.8 & 7.4 \\ 4659 & [Fe~{\sc iii}] & & 0.41 & 0.43 & 0.47 & 0.49 & 6.3 & 6.5 & 0.57 & 0.59 \\ 4686$^{\ast}$ & He~{\sc ii} & WR & 8.5 & 8.9 & 2.1 & 2.2 & 4.17 & 4.25 & 14.6 & 15.3 \\ 4712 & [Ar~{\sc iv}] & & 2.0 & 2.1 & 1.5 & 1.5 & 0.96 & 0.99 & 1.2 & 1.2 \\ 4741 & [Ar~{\sc iv}] & & 0.96 & 0.99 & 0.70 & 0.72 & 0.36 & 0.37 & 0.54 & 0.56 \\ 4861 & H$\beta$ & & 100 & 100 & 100 & 100 & 100 & 100 & 100 & 100 \\ 4959 & [O~{\sc iii}] & & 213.8 & 206.3& 198.4 & 198.5 & 184.8 & 180.4 & 203.6 & 202.0 \\ 5007 & [O~{\sc iii}] & & 630.0 & 604.0& 583.0 & 590.6 & 542.9 & 528.6 & 604.4 & 607.8 \\ 5411 & He~{\sc ii} & WR & 0.56 & 0.50 & -- & -- & -- & -- & 1.16 & 1.15 \\ 5808 & C~{\sc iv} & WR & -- & -- & -- & -- & 2.7 & 2.4 & -- & -- \\ 5876 & He~{\sc i} & & 12.1 & 9.8 & 11.7 & 11.3 & 13.9 & 12.0 & 11.9 & 11.1 \\ \hline H$\beta$ & & & 0.44 & 1.12 & 0.39 & 0.49 & 0.44 & 0.86 & 0.13 & 0.20 \\ \hline \multicolumn{3}{l}{$E(B-V)$} & \multicolumn{2}{c}{0.28 $\pm$ 0.05} & \multicolumn{2}{c}{0.08 $\pm$ 0.05} & \multicolumn{2}{c}{0.20 $\pm$ 0.05} & \multicolumn{2}{c}{0.12 $\pm$ 0.05} \\ \multicolumn{3}{l}{$T_{\rm e}$ (K)} & \multicolumn{2}{c}{12~900 $\pm$ 700} & \multicolumn{2}{c}{12~700 $\pm$ 900} & \multicolumn{2}{c}{12~900 $\pm$ 700} & \multicolumn{2}{c}{12~500 $\pm$ 400} \\ \multicolumn{3}{l}{O$^{+}$/H ($\times10^{-5}$)} & \multicolumn{2}{c}{1.20 $\pm$ 0.07} & \multicolumn{2}{c}{1.7 $\pm$ 0.1} &\multicolumn{2}{c}{2.5 $\pm$ 0.18} & \multicolumn{2}{c}{2.6 $\pm$ 0.2} \\ \multicolumn{3}{l}{O$^{2+}$/H ($\times10^{-5}$)} & \multicolumn{2}{c}{10.3 $\pm$ 0.53} & \multicolumn{2}{c}{10.6 $\pm$ 0.61} & \multicolumn{2}{c}{9.0 $\pm$ 0.65} & \multicolumn{2}{c}{11.2 $\pm$ 0.87} \\ \multicolumn{3}{l}{12 + $\log$(O/H)} & \multicolumn{2}{c}{8.06 $\pm$ 0.02} & \multicolumn{2}{c}{8.09 $\pm$ 0.02} & \multicolumn{2}{c}{8.06 $\pm$ 0.03} & \multicolumn{2}{c}{8.14 $\pm$ 0.03} \\ \hline \end{tabular}} \par $^\ast$ He~{\sc ii} $\lambda$4686 fluxes are the sum of nebular and stellar components. \end{table}