\begin{table}%t2
%\begin{minipage}[t]{\columnwidth}
\caption{Relative improvement in confidence level contours in the $(\Omega_{\rm M},w)$-plane from corrections
for gravitational lensing. The results presented in this table were obtained using a Fisher matrix analysis for
an SNLS-like data set consisting of 250 high redshift SNe~Ia and 44 low redshift SNe~Ia (assumed not to be affected by lensing).}
%and constraints from BAO.}
% title of Table
\label{tab:fisher}      % is used to refer this table in the text
%\centering
                                      % used for centering table
%\renewcommand{\footnoterule}{}  % to avoid a line before footnotes
\begin{tabular}{lllll}          % centered columns (4 columns)
\hline\hline                        % inserts double horizontal lines
% table heading
$\sigma_{\rm int}$ & $\sigma_{\rm err}$\  &
Scenario 1$^a$& 
Scenario 2$^b$& 
    Scenario 3$^c$  \\
(mag) & (mag)& $A_{\rm corr}/A_{\rm lensed}$ & $A_{\rm corr}/A_{\rm lensed}$ & $A_{\rm corr}/A_{\rm lensed}$\\
%\cline{4-6}
\hline
% inserting body of the table
 0.13  &  Eq.~(\ref{eq:err}) &    0.95   &      0.95    &       0.96 \\
  0.09   & Eq.~(\ref{eq:err}) &     0.92   &      0.93  &         0.93 \\
    0.09   & 0 &     0.84   &      0.87  &         0.87 \\
        0.05  & 0 &     0.69   &      0.74  &         0.74 \\
\hline                                           
\end{tabular}
\smallskip
$^a$ No shift in halo mass.\\
$^b$ All halo masses are underestimated    by 50\%.\\
$^c$ All halo masses are overestimated   by 50\%.
\end{table}