OH airglow suppressor spectrograph: design and prospects

Details OH airglow suppressor spectrograph: design and prospects OH airglow suppressor spectrograph: design and prospects

Oct 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993spie.1946..581m&link_type=abstract

Proc. SPIE Vol. 1946, p. 581-586, Infrared Detectors and Instrumentation, Albert M. Fowler; Ed.

Physics

Optics

11

Scientific paper

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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