\begin{table}%tB.1
\caption{Numerical values of the $\xi$ coefficients computed from
Eq.~(\ref{equation_xi_definition}), for a set of common photometric bands
corresponding to the filters given in Table~9 of Fukugita et
al.~(\cite{fukugita95}). Filter widths were determined with
Eq.~(\ref{equation_filterwidth}).}
\label{table_xicolors}
%\centering
\par
\begin{tabular}{lcrrclcrr} \hline \hline
Bandpass system      & Band  & \multicolumn{1}{c}{Width} &
\multicolumn{1}{c}{$\xi$}  & \hspace{4mm} &
Bandpass system      & Band  & \multicolumn{1}{c}{Width} &
\multicolumn{1}{c}{$\xi$}  \\
                     &       & \multicolumn{1}{c}{(\AA)} & 
\multicolumn{1}{c}{$\times 10^{-4}$} & &
                     &       & \multicolumn{1}{c}{(\AA)} & 
\multicolumn{1}{c}{$\times 10^{-4}$} \\ \hline
%insertar aqui la tabla
Johnson-Morgan       & $U_3$           &  543
 &  13.65 &  & 
Schneider et~al.     & $g_4$           &  943
 &   8.17 \\
                     & $B_2$           & 1010
 &   7.70 &  & 
(4-shooter)          & $r_4$           &  906
 &   7.97 \\
                     & $V$             &  871
 &   8.15 &  & 
                     & $i_4$           & 1405
 &   5.06 \\
          &          &                 &        &  & 
                     & $z_4$           & 1286
 &   5.41 \\
Cousins              & $R_{\rm C}$     & 1591
 &   4.56 &  & 
          &          &                 &        \\
                     & $I_{\rm C}$     & 1495
 &   5.82 &  & 
Schneider et~al.     & $g$             &  894
 &   7.60 \\
          &          &                 &        &  & 
(Pfuei)              & $r$             &  880
 &   7.90 \\
Johnson              & $R_{\rm J}$     & 1978
 &   3.66 &  & 
                     & $i$             & 1196
 &   5.73 \\
                     & $I_{\rm J}$     & 2148
 &   3.32 &  & 
                     & $z$             & 1187
 &   5.50 \\
          &          &                 &        &  & 
          &          &                 &        \\
Sandage-Smith        & $u$             &  580
 &  12.85 &  & 
Schneider et~al.     & $A$             &  498
 &  16.01 \\
                     & $b$             & 1046
 &   7.34 &  & 
(narrow bands)       & $B$             &  443
 &  18.68 \\
                     & $v$             &  854
 &   8.76 &  & 
                     & $C$             &  571
 &  13.17 \\
                     & $r$             &  998
 &   6.84 &  & 
                     & $D$             &  491
 &  15.40 \\
%          &          &                 &        &  & 
          &          &                 &        \\
Str\"{o}mgren        & $u$             &  355
 &  21.95 &  & 
Tyson (CCD)          & $B_{\rm J}$     & 1214
 &   6.16 \\
                     & $v$             &  200
 &  34.49 &  & 
                     & $R$             & 1307
 &   6.42 \\
                     & $b$             &  215
 &  32.36 &  & 
                     & $I$             & 1688
 &   4.30 \\
                     & $y$             &  266
 &  28.57 &  & 
          &          &                 &        \\
          &          &                 &        &  & 
WFPC2                & F555W           & 1489
 &   5.13 \\
Kron                 & $U_{\rm K}$     &  565
 &  12.72 &  & 
                     & F606W           & 1849
 &   4.32 \\
                     & $J_{\rm K}$     & 1297
 &   5.74 &  & 
                     & F702W           & 1662
 &   4.72 \\
                     & $F_{\rm K}$     & 1190
 &   5.09 &  & 
                     & F814W           & 1485
 &   4.52 \\
                     & $N_{\rm K}$     & 1646
 &   4.98 &  & 
          &          &                 &        \\
          &          &                 &        &  & 
POSS II              & $g_{\rm POSS}$  &  780
 &  10.40 \\
Couch-Newell         & $B_{\rm J}$     & 1384
 &   6.10 &  & 
                     & $r_{\rm POSS}$  &  991
 &   7.47 \\
                     & $R_{\rm F}$     &  486
 &  14.23 &  & 
                     & $i_{\rm POSS}$  & 1191
 &   6.25 \\
%         &          &                 &        &  & 
          &          &                 &        \\
Thuan-Gunn           & $u$             &  404
 &  19.02 &  & 
SDSS                 & $u\prime$       &  568
 &  13.92 \\
                     & $v$             &  485
 &  15.33 &  & 
                     & $g\prime$       & 1264
 &   6.66 \\
                     & $g$             &  722
 &  10.63 &  & 
                     & $r\prime$       & 1333
 &   6.76 \\
                     & $r$             &  901
 &   9.27 &  & 
                     & $i\prime$       & 1349
 &   6.08 \\
          &          &                 &        &  & 
                     & $z\prime$       & 1309
 &   5.39 \\
%fin de insercion de tabla
\hline
\end{tabular}
\end{table}