\begin{table}%T2
\caption{Photometric amplitudes in the {\em UBVRI} and rotational periods 
of PTTSs in Lindroos systems.}\label{table2}
%\centerline
{
\begin{tabular}{llllllcccc}
\noalign{\smallskip}
          \hline\hline          \noalign{\smallskip}
Star & $\Delta U$ & $\Delta B$ & $\Delta V$ & $\Delta R$ & $\Delta I$ &\multicolumn{4}{c}{Period} 
 \\ 
 & & & &  & & SP ($B$-band) & SP ($V$-band) & SL ($B$-band) & SL ($V$-band) \\
 & (mag) & (mag) & (mag) & (mag) & (mag) & (days)& (days) & (days)& (days)   \\
 \noalign{\smallskip}
 \hline
 \noalign{\smallskip}
(a) & & &  & & &&  && \\\hline
HD~33802~B  & 0.15 & 0.08 & 0.07 & 0.05 &      & 2.8 (99) & 2.8 (99) & 2.8 (98) & 2.8 (99)\\
HD~40494~B  & 0.30 & 0.09 & 0.07 & 0.05 & --    & 6.1 (99) & 6.4 (99) & 6.4 (99) & 6.4 (99)\\
HD~53191~B  & 0.10 & 0.05 & 0.04 & 0.03 & 0.03 & 4.3 (99) & 4.4 (99) & 4.5 (97)& 4.4 (99)\\
HD~60102~B  & 0.14 & 0.12 & 0.09 & 0.09 & 0.09 & 1.8 (99) & 1.9 (99) & 1.8 (99) & 1.9 (99)\\ \hline
(b) & & & &  & & & & & \\ \hline
HD~90972~B  & --    & 0.05 & 0.04 & 0.04 & 0.04 & 3.2 (91) & 3.2 (91) & 3.4 (93)& 3.2 (93) \\
HD~113703~B & --    & 0.09 & 0.05 & 0.05 & 0.04 & 8.2 (99) & 7.7 (98) & 8.1 (99)   & 7.6 (99) \\
HD~113791~B & 0.08 & --    &--     &-- &--  & 3.9 (96)$^1$ & -- & 3.8$^1$ (98) & --   \\
HD~143939~B & --    & --    & --     & 0.07 & 0.07 & 3.0$^2$(97) & 3.2$^3$ (85)  & 3.0$^2$ (97)& 3.2$^3$ (97)\\     
\hline
(c) & & &  & & & & & & \\ 
\hline
HD~86388~B  & --    &--     & 0.05 & --    & --    & --   & 5.3 (85)& --   & 5.7 ($<$90) \\
HD~38622~C  & --    & 0.10 & 0.06 & 0.03 & --    & --   & --   & --   & --   \\
HD~129791~B & 0.07 & 0.03 & 0.03  & 0.03 & 0.02 & --       & -- & --  & --    \\ 
    \hline
 \end{tabular}}
\par
\medskip
 Notes: The sample has been divided in three groups according to the
uncertainties of the derived periods: (a) stars with more secure
(or probable) periods; (b) stars with less secure (or possible)
periods; and (c) stars without periods and stars for which we could
not derive a period; $^1$ obtained with $U$-band data; $^2$ obtained
with $R$-band data; $^3$ obtained with $I$-band data.
\end{table}