\begin{table}%t3 \caption{\label{lineas}Relative observed and reddening corrected line intensities [$F$(H$\beta)$~=~$I$(H$\beta)=1000$] for the different observed knots of IIZw71.} \par %\centerline {\small \begin{tabular}{lcccccccc} \hline \hline \multicolumn{1}{c}{$\lambda$ (\AA)} & \multicolumn{2}{c}{A} & \multicolumn{2}{c}{B} & \multicolumn{2}{c}{C} & \multicolumn{2}{c}{D} \\ & $F(\lambda)$ & $I(\lambda)$ & $F(\lambda)$ & $I(\lambda)$ & $F(\lambda)$ & $I(\lambda)$ & $F(\lambda)$ & $I(\lambda)$ \\ \hline 3726 [O{\sc ii}]$^a$ & $2018\pm 62$ & $2070\pm 240$ & $1545\pm 43$ & $1667\pm 132$ & $1497\pm 60$ & $1561\pm 133$ & $1225\pm 107$ & $1552\pm 227$ \\ 3729 [O{\sc ii}]$^a$ & $2936\pm 289$ & $2767\pm 377$ & $2271\pm 61$ & $2450\pm 163$ & $1990\pm 74$ & $2076\pm 156$ & $1758\pm 150$ & $2227\pm 290$ \\ 3869 [Ne{\sc iii}] & $321\pm 37$ & $328\pm 93$ & $242\pm 23$ & $258\pm 50$ & $297\pm 23$ & $307\pm 53$ & $183\pm 25$ & $224\pm 68$ \\ 4102 H$\delta$ & $303\pm 29$ & $307\pm 75$ & $242\pm 15$ & $254\pm 40$ & $257\pm 19$ & $263\pm 42$ & $233\pm 32$ & $270\pm 67$ \\ 4340 H$\gamma$ & $584\pm 91$ & $570\pm 117$ & $466\pm 13$ & $480\pm 43$ & $483\pm 31$ & $491\pm 52$ & $417\pm 43$ & $458\pm 75$ \\ 4363 [O{\sc iii}] & --- & --- & $29\pm 5$ & $30\pm 11$ & $43\pm 10$ & $44\pm 16$ & --- & --- \\ 4861 H$\beta$ & $1000\pm 39$ & $1000\pm 39$ & $1000\pm 37$ & $1000\pm 37$ & $1000\pm 47$ & $1000\pm 47$ & $1000\pm 118$ & $1000\pm 118$ \\ 4959 [O{\sc iii}] & $734\pm 42$ & $733\pm 54$ & $818\pm 27$ & $814\pm 34$ & $937\pm 34$ & $934\pm 41$ & $850\pm 75$ & $837\pm 80$ \\ 5007 [O{\sc iii}] & $2101\pm 69$ & $2096\pm 99$ & $2411\pm 67$ & $2393\pm 79$ & $2770\pm 95$ & $2759\pm 106$ & $2608\pm 119$ & $2550\pm 223$ \\ 6300 [O{\sc i}] & $83\pm 19$ & $81\pm 30$ & $92\pm 7$ & $87\pm 16$ & $77\pm 6$ & $74\pm 15$ & $100\pm 13$ & $84\pm 25$ \\ 6548 [N{\sc ii}] & $101\pm 19$ & $99\pm 19$ & 92~$\pm$~7 & 86~$\pm$~8 & 93~$\pm$~13 & 90~$\pm$~17 & 100~$\pm$~13 & 82~$\pm$~15 \\ 6563 H$\alpha$ & 2752~$\pm$~126 & 2693~$\pm$~269 & 2895~$\pm$~93 & 2713~$\pm$~161 & 3000~$\pm$~120 & 2894~$\pm$~183 & 3333~$\pm$~324 & 2724~$\pm$~320 \\ 6584 [N{\sc ii}] & 303~$\pm$~21 & 296~$\pm$~24 & 250~$\pm$~18 & 234~$\pm$~21 & 230~$\pm$~14 & 222~$\pm$~18 & 250~$\pm$~15 & 204~$\pm$~19 \\ 6717 [S{\sc ii}] & 514~$\pm$~41 & 502~$\pm$~59 & 405~$\pm$~17 & 378~$\pm$~29 & 297~$\pm$~12 & 285~$\pm$~24 & 267~$\pm$~15 & 215~$\pm$~29 \\ 6731 [S{\sc ii}] & 339~$\pm$~30 & 332~$\pm$~47 & 292~$\pm$~12 & 272~$\pm$~24 & 217~$\pm$~14 & 208~$\pm$~24 & 200~$\pm$~9 & 161~$\pm$~24 \\ 7137 [Ar{\sc iii}] & 138~$\pm$~19 & 134~$\pm$~46 & 68~$\pm$~7 & 63~$\pm$~18 & 77~$\pm$~6 & 73~$\pm$~20 & --- & --- \\ 9069 [S{\sc iii}] & 92~$\pm$~28 & 88~$\pm$~42 & 124~$\pm$~15 & 110~$\pm$~43 & 107~$\pm$~14 & 100~$\pm$~43 & 250~$\pm$~43 & 174~$\pm$~80 \\ \hline \multicolumn{1}{c}{$F$(H$\beta$)~(10$^{-15}$~erg~seg$^{-1}$~cm$^{-2}$)} & \multicolumn{2}{c}{0.89~$\pm$~0.05} & \multicolumn{2}{c}{3.61~$\pm$~0.10} & \multicolumn{2}{c}{4.19~$\pm$~0.10} & \multicolumn{2}{c}{3.49~$\pm$~0.10} \\ %\multicolumn{1}{c}{EW(H$\beta$)(\AA)} & \multicolumn{2}{c}{35~$\pm$~5} & \multicolumn{2}{c}{30~$\pm$~2} & \multicolumn{2}{c}{11~$\pm$~1} & \multicolumn{2}{c}{32~$\pm$~5} \\ \multicolumn{1}{c}{$c$(H$\beta$)} & \multicolumn{2}{c}{$<$0.05} & \multicolumn{2}{c}{0.09~$\pm$~0.03} & \multicolumn{2}{c}{0.05~$\pm$~0.02} & \multicolumn{2}{c}{0.28~$\pm$~0.02} \\ \hline \end{tabular}} \par \medskip For each knot we also give the flux of H$\beta$, once reddening corrected and after subtraction of the underlying absorption and the constant of reddening, with their corresponding errors. $^a$~Partially blended (see text and Fig.~\ref{blend}). \end{table}