20 October 1993 OH airglow suppressor spectrograph: design and prospects
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Abstract
The design of an OH airglow suppressor spectrograph for use on the University of Hawaii 2.2 m telescope is presented. The unique feature of the pre-optics system for low resolution spectroscopy in the 1.1 to 1.8 micrometers range is the capability of removing most of the intense OH emission lines by a specially designed spectroscopic mask. With the OH suppressor spectrography, the background flux is reduced to about 1/30 the natural background on the average. The sensitivity gain in terms of limiting magnitude is expected to be approximately 1.5 mag, compared with the conventional method.
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Toshinori Maihara, Toshinori Maihara, Fumihide Iwamuro, Fumihide Iwamuro, Donald N. B. Hall, Donald N. B. Hall, Lennox L. Cowie, Lennox L. Cowie, Alan T. Tokunaga, Alan T. Tokunaga, Andrew J. Pickles, Andrew J. Pickles, } "OH airglow suppressor spectrograph: design and prospects", Proc. SPIE 1946, Infrared Detectors and Instrumentation, (20 October 1993); doi: 10.1117/12.158709; https://doi.org/10.1117/12.158709
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