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Proceedings Paper

OH airglow suppressor spectrograph: design and prospects
Author(s): Toshinori Maihara; Fumihide Iwamuro; Donald N. B. Hall; Lennox L. Cowie; Alan T. Tokunaga; Andrew J. Pickles
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Paper 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.

Paper Details

Date Published: 20 October 1993
PDF: 6 pages
Proc. SPIE 1946, Infrared Detectors and Instrumentation, (20 October 1993); doi: 10.1117/12.158709
Show Author Affiliations
Toshinori Maihara, Kyoto Univ. (Japan)
Fumihide Iwamuro, Kyoto Univ. (Japan)
Donald N. B. Hall, Univ. of Hawaii/Manoa (United States)
Lennox L. Cowie, Univ. of Hawaii/Manoa (United States)
Alan T. Tokunaga, Univ. of Hawaii/Manoa (United States)
Andrew J. Pickles, Univ. of Hawaii/Manoa (United States)


Published in SPIE Proceedings Vol. 1946:
Infrared Detectors and Instrumentation
Albert M. Fowler, Editor(s)

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