\begin{table}%t2
\caption{\label{tab_flare}List of flares of \axj\ observed with \integral/IBIS/ISGRI.}             
 \small      
%\centering
\par
\begin{tabular}{c c c c}
\hline\hline       
Time & 22--50~keV flux & On-time exp. & Pointing\\
MJD$-$51~544 & \cps & ks & ~\\
\hline                    
1191.2173 & $4.5\pm0.7$ & 2.2 & {\tt 00580043}\\
1216.0800 & $4.6\pm0.9$ & 1.8 & {\tt 00660092}\\
1763.0657 & $4.7\pm0.7$ & 3.0 & {\tt 02490072}\\
1940.2455 & $4.3\pm0.8$ & 2.0 & {\tt 03080097}\\
1940.4107 & $4.0\pm0.7$ & 3.5 & {\tt 03080103}\\
1944.8607 & $4.1\pm0.7$ & 2.0 & {\tt 03100044}\\
2122.4849 & $6.2\pm1.2$ & 3.0 & {\tt 03690058}\\
\hline                  
\end{tabular}
\end{table}