\begin{table}%ta1 \caption{\label{tabriga}Optical emission line fluxes of the core galaxies.} \par %\centerline { \begin{tabular}{c | c c c c c c c} \hline\hline Name & V & H$\beta$ & [O~III] & [O~I] & H$\alpha$ & [N II] & [S~II] \\ \hline UGC~5902 & 950 &3.2 $\pm$ 0.5 & 4.8 $\pm$ 0.4 & $<$1.2 & 6.2 $\pm$ 0.7 & 3.8 $\pm$ 0.4 & $-$ \\ UGC~7203 & 2379 &0.9 $\pm$ 0.1 & 1.0 $\pm$ 0.1 & 0.5 $\pm$ 0.1 & 2.8 $\pm$ 0.1 & 4.4 $\pm$ 0.2 & $-$ \\ UGC~7629 & 1047 &0.9 $\pm$ 0.2 & 1.1 $\pm$ 0.2 & $<$0.6 & 1.6 $\pm$ 0.2 & 3.3 $\pm$ 0.2 & $-$\\ UGC~7760 & 450 &2.0 $\pm$ 0.5 & 4.4 $\pm$ 0.7 & $<$1.2 & 10 $\pm$ 1 & 20.0 $\pm$ 0.4& $-$ \\ UGC~7898 & 1198 &0.8 $\pm$ 0.2 & $<$0.7 & $<$0.8 & 0.6 $\pm$ 0.2 & $<$1.2 & $-$ \\ UGC~8745 & 2054 &3.0 $\pm$ 0.3 & 2.8 $\pm$ 0.3 & $<$1.1 & 6.4 $\pm$ 0.3 &12.0 $\pm$ 0.3 & $-$ \\ UGC~9655 & 2037 &1.1 $\pm$ 0.3 & $<$1.2 & $<$0.91 &1.6 $\pm$ 0.3 & 3.3 $\pm$ 0.3 & $-$ \\ \hline UGC~0968 & 2422 & 0.94$^{b}$& $<$0.45 & $<$0.42 & 3.0 & 4.7 & 2.1 \\ UGC~6297 & 1025 & 3.2 & 7.3 & 3.4 & 18 & 38 & 15 \\ UGC~7386 & 788 & 51 & 67 & 54 & 132& 161 & 195 \\ UGC~7797 & 2283 & 2.4 & 5.6 & 4.6 & 11 & 16 & 19 \\ UGC~7878 & 1012 & 1.9 & 3.6 & 1.2 & 5.4 & 9.9 & 7.8 \\ UGC~9706 & 1832 & 1.7 & 2.1 & 0.6$^{c}$& 6.6 & 10 & 6.3 \\ UGC~9723 & 950 & 0.54 & 1.1 & $<$0.47 & 3.6 & 4.9 & 2.7 \\ \hline \end{tabular}} \par \medskip Column desctription: (1) name; (2) radial velocity (cz) corrected for Local Group infall onto Virgo cluster [km s$^{-1}$]; emission line flux in units of 10$^{-15}$ erg s$^{-1}$ cm$^{-2}$: (3) H$\beta\lambda$4861, (4) [O~III]$\lambda$5007, (5) [O~I]$\lambda$6300, (6) H$\alpha\lambda$6563, (7) [N~II]$\lambda$6584, (8) sum of [S~II]$\lambda$6716 and [S~II]$\lambda$6731. The upper limit fluxes are measured at 3$\sigma$. The data below the horizontal line are from \citet{ho97}. For these sources, values with uncertainties of $\pm$30\%--50\% are marked by `b', while highly uncertain values with probable errors of $\pm$100\% are marked by `c'. \end{table}