\begin{table}%t2
%\centering
\par
\caption{\label{l1457-cs-abc}Parameters of the IRAM CS observation in L~1457.}
\begin{tabular}{l l l l l }
\hline\hline
\noalign{\smallskip}
 Source & $T_{\rm mb}$ & rms & $v_{\rm LSR}$ & $\Delta v$ \\
        & (K)     & (K) & (\kms)    & (\kms) \\
\noalign{\smallskip}
\noalign{\hrule}
\noalign{\smallskip}
L~1457-A   & 0.69 & 0.09 & $-5.35\pm0.02$ & $0.56\pm0.04$\\
L~1457-B   & 0.31 & 0.08 & $-4.71\pm0.05$ & $1.17\pm0.11$\\
          & 0.25 & 0.08 & $-2.82\pm0.05$ & $0.74\pm0.10$\\
L~1457-C   & 0.37 & 0.02 & $-5.69\pm0.01$ & $0.61\pm0.03$ \\
          & 0.31 & 0.02 & $-4.49\pm0.01$ & $0.74\pm0.03$\\
          & 0.30 & 0.02 & $-2.74\pm0.01$ & $0.79\pm0.03$\\
L~1457-C1   & 0.62 & 0.10 & $-5.75\pm0.03$ & $0.50\pm0.06$ \\
          & 0.33 & 0.10 & $-4.49\pm0.04$ & $0.31\pm0.11$\\
          & 0.64 & 0.10 & $-2.59\pm0.03$ & $0.48\pm0.06$\\
\noalign{\hrule}
\end{tabular}
\end{table}