The Following text was taken from the ESA Science site: URL: http://isowww.estec.esa.nl/science/
SWS grating spectrum showing the 441 - 414 emission line at 37.8939 microns
This image was taken from the ISO dedicated Astronomy and Astrophysics Letter; "Detection of far-infrared rotational lines of water vapour toward W Hydrae", David A. Neufeld.
INFRARED PROCESSING AND ANALYSIS CENTER