OH airglow suppressor spectrograph: design and prospects

Toshinori Maihara; Fumihide Iwamuro; Donald N. B. Hall; Lennox L. Cowie; Alan T. Tokunaga; Andrew J. Pickles

doi:10.1117/12.158709

20 October 1993 OH airglow suppressor spectrograph: design and prospects

Toshinori Maihara, Fumihide Iwamuro, Donald N. B. Hall, Lennox L. Cowie, Alan T. Tokunaga, Andrew J. Pickles

Proceedings Volume 1946, Infrared Detectors and Instrumentation; (1993) https://doi.org/10.1117/12.158709
Event: Optical Engineering and Photonics in Aerospace Sensing, 1993, Orlando, FL, United States

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.

Citation Download Citation

Toshinori Maihara, Fumihide Iwamuro, Donald N. B. Hall, Lennox L. Cowie, Alan T. Tokunaga, and Andrew J. Pickles "OH airglow suppressor spectrograph: design and prospects", Proc. SPIE 1946, Infrared Detectors and Instrumentation, (20 October 1993); https://doi.org/10.1117/12.158709

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