\begin{table}%t3
\caption{\label{mecanismo}Ionization in the extra-nuclear ionized regions of LIRGs.}
\par
%%\centering

\par
 {
\begin{tabular}{cllp{8.8cm}}
\hline \hline \noalign{\smallskip}
  Galaxy       &  Mechanism\tablefootmark{a}  & $r$\tablefootmark{b} & Comment \\
 (IRAS number) &   &  &    \\
\hline
\multicolumn{4}{c}{Class 0}\\
F06295$-$1735    &  Young stars  & 0.22 & \\
F06592$-$6313    &  \ldots       & 0.42 & No \oi\ nor \sii\ data. $r$ based on \nha.\\
F07027$-$6011~N\tablefootmark{c}  &  Young stars and shocks (100$-$200~km~s$^{-1}$) & 0.44 &  Part of the shocks may be associated to the nucleus according \oha \ map.\\
F07027$-$6011~S  &  Young stars  & 0.21 &  $r$ based on
       \sha. $r$ based on \oha\ not reliable.\\
F07160$-$6215    &  Shocks (100$-$300~km~s$^{-1}$) & 0.31 & $r$ based on \sha. No \oi\ data.\\ 
F10015$-$0614    &  Young stars & 0.15 & \\
F10409$-$4556    &  \ldots       & 0.37 & $r$ based on \nha.  No \oi\  nor \sii\ data.\\
F10567$-$4310    &  Young stars  & 0.23 & $r$ based on \sha. No \oi\ data.\\
F11254$-$4120    &  Young stars  & 0.71  & $r$ based on \nha.  $r$ based on \sha\  not reliable. No \oi\ data. Possible shocks associated to the bar according to the \sha \ map. \\
F11506$-$3851    &  Young stars  & 0.19  & Some small areas better explained with low velocity shocks.\\
F12115$-$4656    &  Young stars  & --0.24 & \\
F13229$-$2934\tablefootmark{d}     & Shocks  (100$-$300~km~s$^{-1}$)  & 0.47 & Some areas explained by stars, mostly associated with the arms. Part of the high excitation may be associated to the nucleus according to the \oha \ map. \\ 
F22132$-$3705    &  Young stars  & 0.10 & Small areas better explained with low velocity ($<$100~km~s$^{-1}$) shocks.\\
\hline
\multicolumn{4}{c}{Class 1}\\
F01159$-$4443    & Low velocity  ($<$100~km~s$^{-1}$) shocks & 0.23 & Some regions explained by stars.\\ 
ESO 297-G011     & Young stars   & --0.12 & Some small areas explained by shocks. $r$ based on \sha. $r$ based on \oha\ not reliable.\\
ESO 297-G012     & Young stars and shocks & --0.56 &  $r$
       based on \nha. $r$ based on \oha\ or \sha\ not reliable.\\
F06076$-$2139    & \ldots        & 0.75 & $r$ based on \nha \ data. No \oi\ nor \sii\  data.\\
F06259$-$4708 P1 & Young stars   & 0.74 & Low velocity (100--150~km~s$^{-1}$) shocks also present.\\
F06259$-$4708 P2 &  Shocks (100--150~km~s$^{-1}$) and young stars & 0.31 &  \\
08424$-$3130     &  Stars and shocks (${\sim}100$~km~s$^{-1}$)  & 0.61 & $r$ based on \sha. $r$ based on \oha\  not reliable. Northern galaxy mainly shocks; southern one mainly stars. \\ 
F08520$-$6850    & Stars and shocks (${\sim}100$~km~s$^{-1}$)   & 0.40 &  \\
IC 563            & Young stars   &  0.22 & Low velocity (100--150~km~s$^{-1}$) shocks could be also present.\\
IC 564 N          & Young stars   &  0.44 & Low velocity (100--150~km~s$^{-1}$) shocks also present. $r$ based on \nha. No \oi\ data. $r$ based on \sha\  not reliable.\\
IC 564 S          & Young stars   &  0.34 & $r$ based on \nha.  No \oi\ data. $r$ based on \sha\  not reliable.\\
12042$-$3140     & Young stars and shocks (100--150~km~s$^{-1}$) &  0.81 & Northern galaxy mainly stars, Southern one shocks. \\
12596$-$1529     & Young stars and low velocity shocks & 0.47   & $r$
based on \sha\ data.  No \oi\ data. $r$ based on \sha\ not reliable.\\
F14544$-$4255 E  & Young stars   &  0.67 & $r$ based on \sha. No \oi\ data.\\ 
F14544$-$4255 W\tablefootmark{d}   & High velocity (100--300~km~s$^{-1}$) shocks & 0.67 & Shocks may be associated to the nucleus according to the \oha\ map.\\ 
18093$-$5744 N   & Young stars   & 0.09 & Low velocity shocks also possible.\\
18093$-$5744 C   & Stars older than 3~Myr and/or with $Z <Z_\odot$ & --0.65 &$r$ based on \sha. $r$ based on \oha\ not reliable.\\
18093$-$5744 S   & Young stars   & 0.27 &     \\
\hline
\multicolumn{4}{c}{Class 2}\\
F04315$-$0840    &  Shocks (100--200~km~s$^{-1}$) and young stars & 0.63 & Young stars in the inner region and arms/tidal tails. Shocks at 2--3 kpc from the nucleus.  \\ 
08355$-$4944     &  Young stars & 0.14 & Low velocity shocks also present at $\sim$2 kpc from the nucleus. \\
F10038$-$3338    &  Shocks (100--200~km~s$^{-1}$) & 0.50 & Shocks may be associated to the nucleus. \\  
10257$-$4338     &  Shocks (100--150~km~s$^{-1}$) and stars &  0.63 &  \\
12116$-$5615     &  Young stars and low velocity shocks & 0.57 & \\
13001$-$2339     &  Shocks (100--150~km~s$^{-1}$) & 0.48 & All data with \oha~$>$ $-1.2$. Part of the shocks may be associated to the nucleus  \\
17138$-$1017     &  Young stars and low velocity shocks & --0.23 & No \oi data; $r$ according to \sha \ data \\
21453$-$3511\tablefootmark{d}     &  High velocity (100--300~km~s$^{-1}$) shocks and/or AGN. & 0.76 & Young stars (spiral arms). Shocks may be associated to the nucleus according \oha\ map.\\ 
\hline
\end{tabular}}
\tablefoot {\tablefoottext{a}{At least otherwise indicated, based on the comparison of the data with several ionization models in the \oha~$-$ \nha~diagnostic diagram.  For the present analysis solar metallicity has been considered as baseline. If~higher metallicity (e.g.~$Z=2~Z_\odot$) is considered, a higher presence of shocks with respect to stars would have been obtained (see  Fig.~\ref{figo1havsn2gha}).} \\  
\tablefoottext{b}{Pearson coefficient inferred from the \oha~$-$~$\sigma$~relation (see~text). For~objects where \oi\ was not detected or the $r$~coefficient did not reach a confidence level of~90\%, $r$~was obtained from the \sha \ or \nha, as~indicated.}\\   
\tablefoottext{c}{Classified as Seyfert \citep{kew01a}.}\\
\tablefoottext{d}{Classified as Seyfert \citep{cor03}.}}
\vspace*{3mm}
\end{table}