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We have discovered a wealth of molecular absorption and emission lines
belonging to CO, CO2, OH and H2O in the spectrum of the bright heavily
obscured cool supergiant, NML Cyg (Justtanont et al. 1996). In order to
be able to interpret the spectrum, it is of fundamental importance to
determine the line widths of these lines which are unresolved at the
resolution of the SWS grating spectrum. Therefore, we request SWS
Fabry-Perot measurements of a number of lines in the spectrum of NML Cyg.
These observations will allow us to study the stratification and
excitation of molecules in the circumstellar envelope, the cooling of
the circumstellar material and the OH maser pumping scheme. These
observations will be carried out in conjunction with LWS observations
of NML Cyg.
OBSID  : KJUSTTAN
PROPID : NML_H2O