\begin{table}%t4
%\centering
\par
\caption{\label{reflinelists}Line lists used for the synthetic
spectra.}  
\begin{tabular}{rl}  \hline\hline
\rule[-3mm]{0mm}{8mm} Species & Ref. \\
\hline
\rule[0mm]{0mm}{5mm}H & {\citet{Kurucz1995}}
\\ atoms & {\citet{Kurucz1995}}
\\  & {\citet{Vanhoof1998sese.conf...67V}}
\\  & {\citet{Hirhor95}}
\\ CH & {\citet{Jorgensen1996AetA...315..204J}}
\\ CN & Plez (private communication),
\\    & dissociation energy $=$ $7.76~$eV
\\ CO & {\citet{Goorvitch1994ApJS...95..535G}}
\\ HCl & Sauval, compilation of
\\   & {\citet{1999JMoSp.194..189L}}
\\   & {\citet{1980JChPh..73.5221O}}
\\   & {\citet{1992JChPh..97.1734A}}
\\ H$_{2}$O & {\sc{ames}} {\citep{1997JChPh.106.4618P}}
\\ NH & Sauval, compilation of
\\    & {\citet{Grevesse1990AetA...232..225G}}
\\    & {\citet{Geller1991AetA...249..550G}}
\\ NO & Sauval {\citep{Goldman1998b}}
\\ OH & {\citet{Goldman1998a}}
\\ SiO & {\citet{Langhoff1993}}\\
\rule[-3mm]{0mm}{3mm}TiO & {\citet{Schwenke1998}} \\
\hline
\end{tabular}
\end{table}