\begin{table}%T3
%\centering
\small
\caption{ Fraction of light contributed by a burst of 
star formation with a metallicity $[$M/H$]=+0.2$ and a strength of 20\% 
in  mass,
in a galaxy with an age 15.85~Gyr and a metallicity $[$M/H$]=-0.38$ for 
different ages of the burst.\label{tabl.fractions}}
\begin{tabular}{l c  c}
\hline\hline
Age burst (Gyr) &  fb (3650--4050 \AA) & fb (4750--5150 \AA)\\[-3.2mm]\\
\hline
1.00           &    0.956            & 0.932            \\
1.12           &    0.944            & 0.917            \\
1.26           &    0.932            & 0.904           \\
1.41           &    0.920            & 0.896           \\
1.58           &    0.900            & 0.879           \\
1.78           &    0.852            & 0.817           \\
2.00           &    0.811            & 0.766           \\
2.24           &    0.766            & 0.712           \\
2.51           &    0.712            & 0.685           \\
2.82           &    0.653            & 0.634           \\
3.16           &    0.596            & 0.588            \\
3.55           &    0.544            & 0.547         \\
3.98           &    0.482            & 0.493         \\
4.47           &    0.430            & 0.449         \\
5.01           &    0.398            & 0.409        \\
5.62           &    0.343            & 0.362       \\
6.31           &    0.284            & 0.307       \\
7.08           &    0.246            & 0.268  \\
7.98           &    0.193            & 0.217  \\
8.91           &    0.161            & 0.188  \\
10.00          &    0.135            & 0.162  \\
11.22          &    0.110            & 0.140  \\
12.59          &    0.084            & 0.109  \\
14.12          &    0.070            & 0.093  \\
\hline
\end{tabular}
\end{table}