\begin{table}%t3
%\centering
\par
\caption{Maximum dust-to-gas ratio and temperature interval where the dust-to-gas ratio is larger than half maximum.}\small\label{tab:Twindow}
\small \begin{tabular}{cccc}
\noalign{\smallskip}\hline  \hline
$T_{\rm eff}~$[K] & $\log~g$ &  $\bigg(\displaystyle\frac{\rho_{\rm d}}{\rho_{\rm gas}}\bigg)_{\rm max}$ $ \big[10^{-3}\big] $ & Temp.~interval~[K] \\
\noalign{\smallskip}  \hline
  1300 & 5 & 2.6  & 1300--1800\\
  1800 & 5 & 2.6  & 1300--1800\\
  2200 & 5 & 2.1  & 1450--1750\\
  2500 & 5 & 0.2  & 1550--1800\\
  1300 & 3 & 4.0  & 950--1600 \\
  1800 & 3 & 3.8  & 1000--1600 \\
  2200 & 3 & 2.3  & 1300--1500  \\
  2500 & 3 & 0.04 & 1550--1700 \\
  \hline
  \end{tabular}   
\end{table}