1 June 1994 OH airglow suppressor for the SUBARU Telescope: OHS for SUBARU
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A specially designed faint object spectrograph in the near-IR region from 1 to 2 micrometers is proposed for the Japanese National Large Telescope: SUBARU. The proposed instrument called OHS for SUBARU is kind of a pre-optics system capable of eliminating most of intense OH airglow emission lines from the incident beam in the J- and H-passbands. The detectivity for objects in the faintest end is supposedly enhanced with this spectroscopic filter system by removing nearly 95% of the natural sky background: the non-thermal night airglow emission. The sensitivity gain in terms of limiting magnitude in these wavelength bands is expected to be 1 to 1.5 mag, depending on the modes of observations. The expected performance of the prototype OHS when attached to SUBARU will also be presented.
© (1994) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Toshinori Maihara, Toshinori Maihara, Fumihide Iwamuro, Fumihide Iwamuro, Shin Oya, Shin Oya, Hiroyuki Tsukamoto, Hiroyuki Tsukamoto, 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 for the SUBARU Telescope: OHS for SUBARU", Proc. SPIE 2198, Instrumentation in Astronomy VIII, (1 June 1994); doi: 10.1117/12.176748; https://doi.org/10.1117/12.176748


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