\begin{table}%t2
%\centering
\par
\caption{Reference stars for fast rotators.}
\label{templa}
$$ \begin{array}{lll}
\hline
\hline
{\rm Fast~rotator}  & {\rm Reference~star} & \Delta T_{\rm eff}
\\
\par
&                                        &   ({\rm K})       \\
\hline\\[-3mm]
{\rm AP}37& \left \{\begin{array}[c]{l}
{\rm AP}98\\{\rm AP}72 \end{array}\right. &\begin{array}[c]{l}
+65\\+66\end{array} \\[2.5mm]
{\rm AP}43 & \left \{\begin{array}[c]{l} {\rm AP}106 \\
{\rm AP}33\end{array} \right. &  \begin{array}[c]{l}  -7 \\ +4
\end{array} \\[2.5mm]
{\rm AP}56 &  \left \{\begin{array}[c]{l} {\rm AP}65 \\
{\rm AP}33\end{array} \right.  &  \begin{array}[c]{l}   +3 \\-35
\end{array} \\[2.5mm]
{\rm AP}91& \left \{\begin{array}[c]{l} {\rm AP}33 \\
{\rm AP}110\end{array}\right.  &  \begin{array}[c]{l}  +1 \\ -10
\end{array}\\[2.5mm]
{\rm AP}93& \left \{\begin{array}[c]{l} {\rm AP}70 \\
{\rm AP}106\end{array} \right. & \begin{array}[c]{l} -13 \\ +26
\end{array}\\[2.5mm]
{\rm APX27A} & \left \{ \begin{array}[c]{l} {\rm AP}110 \\
{\rm AP}98\end{array}\right. &\begin{array}[c]{l} -78
\\+97\end{array}\\[2.5mm]
{\rm APX}59 &\left \{\begin{array}[c]{l}{\rm AP}98 \\
{\rm AP}72\end{array}\right. &\begin{array}[c]{l}+45\\+46
\end{array}  \\[2.5mm]
{\rm APX}158&\left \{\begin{array}[c]{l}{\rm AP}110 \\
{\rm AP}98\end{array}\right. & \begin{array}[c]{l} -86 \\ +89
\end{array} \\[2.5mm]
\hline
\end{array}  $$
\end{table}