OBSERVATIONS OF THE OH AIRGLOW EMISSION

The OH airglow emission in the J and H bands was observed for the purpose of determining the linewidths, the precise wavelengths of individual lines, and also the continuum emission level between lines. The lines were not resolved with a resolving power of about 17,000. Wavelengths and intensities were measured for approximately 120 lines from 1.1 to 1.8 mum. The continuum emission intensity was also measured on a dark night and was as low as 590 photons s-1 m-2 arcsec-2 mum-1 at 1.665 mum. The level is about one-fiftieth the average flux of the OH airglow emission in the H band.