\begin{table}%T8 
\begin{minipage}{180mm}
\caption{\label{fitlum} Fitting parameters of surface-brightness distributions\protect\footnote{A linear least-squares fit was applied with $\log L = \delta \cdot
\log R/R_0 + \log L_{0}$ and $R_0$ = 100 pc from the nucleus.
The number of data points included in the fit is
given in Col.~2 (=half the number of averaged values from both sides of
the nucleus). 
For \object{NGC~5643} which shows a transition between line
ratios typical for AGNs and \ion{H}{ii}-regions, only data points within the NLR
were included.}. For
\object{ESO~362-G008}, too few data points were available for a fit.}
%\centering
\small\def\footnoterule{}
\begin{tabular}{lccccccc}
\hline
\hline
\multicolumn{1}{c}{Galaxy} & Data Points & \hspace{+3mm}$\delta_{\rm [OIII]}$ & $\log L_{\rm [OIII], 0}$  & \hspace{+3mm}$\delta_{\rm H\alpha}$ & $\log L_{\rm H\alpha, 0}$  & \hspace{+3mm}$\delta_{\rm cont}$ & $\log L_{\rm cont, 0}$ \\
& & & (erg~s$^{-1}$~pc$^{-2}$) & & (erg~s$^{-2}$~pc$^{-2}$) & & (erg~s$^{-2}$~pc$^{-2}$)\\[0.25ex]
\hline\\[-2.3ex]
\object{IC~5063}           & 9               & $-$2.73 $\pm$ 0.33 & 38.41 & $-$2.75 $\pm$ 0.31 & 38.01 & $-$1.37 $\pm$ 0.18 & 35.2 \\
\object{NGC~7212}          & 4               & $-$2.13 $\pm$ 0.57 & 38.46 & $-$2.09 $\pm$ 0.56 & 37.85 & $-$0.77 $\pm$ 0.26 & 34.57 \\
\object{NGC~3281}          & 4               & $-$2.35 $\pm$ 0.60 & 38.22 & $-$2.34 $\pm$ 0.64 & 37.73 & $-$1.02 $\pm$ 0.18 & 35.34 \\
\object{NGC~5643}          & \hspace{-2mm}10 & $-$1.42 $\pm$ 0.19 & 35.97 & $-$1.34 $\pm$ 0.16 & 35.35 & $-$1.54 $\pm$ 0.11 & 33.94 \\
\object{NGC~1386}          & 6               & $-$2.56 $\pm$ 0.82 & 37.16 & $-$2.27 $\pm$ 0.60 & 36.55 & $-$1.26 $\pm$ 0.48 & 35.46 \\[0.1ex]
\hline 
\end{tabular} 
\end{minipage}
\end{table}