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Proceedings Paper

OH airglow suppressor for the SUBARU Telescope: OHS for SUBARU
Author(s): Toshinori Maihara; Fumihide Iwamuro; Shin Oya; Hiroyuki Tsukamoto; Donald N. B. Hall; Lennox L. Cowie; Alan T. Tokunaga; Andrew J. Pickles
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Paper Abstract

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.

Paper Details

Date Published: 1 June 1994
PDF: 7 pages
Proc. SPIE 2198, Instrumentation in Astronomy VIII, (1 June 1994); doi: 10.1117/12.176748
Show Author Affiliations
Toshinori Maihara, Kyoto Univ. (Japan)
Fumihide Iwamuro, Kyoto Univ. (Japan)
Shin Oya, Kyoto Univ. (United States)
Hiroyuki Tsukamoto, Kyoto Univ. (Japan)
Donald N. B. Hall, Univ. of Hawaii Institute for Astronomy (United States)
Lennox L. Cowie, Univ. of Hawaii Institute for Astronomy (United States)
Alan T. Tokunaga, Univ. of Hawaii Institute for Astronomy (United States)
Andrew J. Pickles, Univ. of Hawaii Institute for Astronomy (United States)


Published in SPIE Proceedings Vol. 2198:
Instrumentation in Astronomy VIII
David L. Crawford; Eric R. Craine, Editor(s)

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