\begin{table}%t2
%\centering
\par
\caption{\label{tab2}The derived dust mass and temperature.}
\begin{tabular}{@{}lccccc@{}}
\hline\hline\noalign{\smallskip}
Part  &Dust  &Comp.& $T_{\rm d}$ & $M_{\rm d}$\\
& spices& & (K)  &($M_{\odot}$)\\
\hline
SNR   &carbon  &warm &62 $\pm$ 2  &0.10 $\pm$ 0.02\\
      &         &cold &26 $\pm$ 2  &8.7 $\pm$ 1.0\\
      &silicate &warm &57 $\pm$ 2  &0.4 $\pm$ 0.06\\
      &         &cold &27 $\pm$ 2  &12 $\pm$ 2\\
\hline
E blob&carbon   &warm&59 $\pm$ 2&0.04 $\pm$ 0.01\\ 
      &         &cold&19 $\pm$ 2&4.2 $\pm$ 1.7 \\ 
      &silicate &warm&57 $\pm$ 1&0.10 $\pm$ 0.01\\ 
      &         &cold&21 $\pm$ 1&6.1 $\pm$ 2.2\\
\hline
\end{tabular}
\vspace{-2.5mm}\end{table}