**Table 8:** Observed LWS line fluxes for NGC 7538 IRS1.
$\begin{table} \par\begin{displaymath} \begin{array}{lcl} \hline \hline \noal... ...7) \\ \noalign{\smallskip } \hline \end{array} \end{displaymath} \end{table}$

: a(b) means $a\times10^b$ .
^a: Fluxes are in W cm^-2 $\mu$ m^-1. The upper limits are 3 $\sigma$ values. To convert to W cm^-2,
multiply by $\Delta \lambda = \lambda/R$ in $\mu$ m, with $R\approx 9200$ .
^b: Tentative detection at the 3 $\sigma$ level, due to shifted wavelength of absorption feature.