\begin{table}%t4
\caption{Parameters of the Galaxy model (values at the solar circle).
}\label{t_galpar}
%\centerline
{\begin{tabular}{lllrl}
\hline \hline
Name & Symbol & Unit & Value & Reference\\
\hline
Radial extension of Galactic disk & $R\ind{G}$ & kpc & 18 & [1]\\
Solar distance to Galactic center & $R_{\odot}$ & kpc & 8.5 & [1]\\
Half height H$_2$** & $h\ind{\htwo}$ & pc & 59 & [1]\\
Half height CNM/WNM** & $h\ind{\hi}$ & pc & 115 & [1]\\
Half height WIM** & $h\ind{WIM}$ & pc & $10^3$ & [2] \\
H$_2$ mass surface density* & $\Sigma\ind{\htwo}$ & \msun{} pc$^{-2}$ & 1.4 & [1] \\
CNM mass surface density* & $\Sigma\ind{CNM}$ & \msun{} pc$^{-2}$ & 2.25 & [1] \\
WNM mass surface density* & $\Sigma\ind{WNM}$ & \msun{} pc$^{-2}$ & 2.75 & [1] \\
WIM mass surface density* & $\Sigma\ind{WIM}$ & \msun{} pc$^{-2}$ & 1.85 & [2,1] \\
Ensemble averaged clump density* & $n\ind{ens}$ & \pcc{} & $10^{3.8}$ & \\
CNM density* & $n\ind{CNM}$ & \pcc{} & 32.9 & [1] \\
WNM/WIM density* & $n\ind{WNM}$ & \pcc{} & 0.349 & [1] \\
CNM temperature* & $T\ind{CNM}$ & K & 85 & [1] \\
WNM/WIM temperature* & $T\ind{WNM}$ & K & 7860 & [1] \\
FUV-flux** & $\chi$ & \fdraine & $10^{1.8}$ & \\
Metallicity** & $Z$ & Z$_{\sun}$ & 1 & \\
Clump mass spectral index ** & $\alpha$ & & 1.8 & [3] \\
Mass-size relation index** & $\gamma$ & & 2.3 & [3] \\
Upper clump mass limit** & $m\ind{u}$ & \msun{} & $10^{2}$ & [3] \\
Lower clump mass limit** & $m\ind{l}$ & \msun{} & $10^{-3}$ & [3] \\
\hline
\end{tabular}}
\medskip
* For distribution over Galactocentric radius see Fig.~\ref{f_galpar} or text. \\
*** Assumed to be constant over the whole Galactic disk (see text).
 [1] \cite{Wolfire2003};
 [2] \cite{Reynolds1991};
 [3] \cite{Heithausen1998}.
\end{table}